Latest Standards, Engineering Specifications, Manuals and Technical Publications

This document specifies technical safety requirements and measures to be adopted by persons undertaking the design, manufacture and supply of press brakes which are intended to work cold metal or material partly of cold metal but which can be used in the same way to work other sheet materials (e.g. cardboard, plastic, rubber, leather) and also referred to as machines. NOTE 1 The design of a machine includes the study of the machine itself, taking into account all phases of the “life” of the machine mentioned in ISO 12100:2010, 5.4, and the drafting of the instructions related to all the above phases. This document covers the following types of machines (see Annex J): hydraulic press brakes; hydraulic servo-drive press brakes; screw servo-drive press brakes; belt-spring servo-drive press brakes. The requirements in this document take account of intended use, as defined in ISO 12100:2010, 3.23, as well as reasonably foreseeable misuse, as defined in ISO 12100:2010, 3.24. This document presumes access to the press brake from all directions, deals with all significant hazards during the various phases of the life of the machine described in Clause 4, and specifies the safety measures for both the operator and other exposed persons. NOTE 2 All significant hazards means those identified or associated with press brakes at the time of the publication of this document. This document can also be used as a guide for the design of press brakes which are intended to be integrated in a manufacturing system. This document deals with all significant hazards, hazardous situations or hazardous events relevant to press brakes and ancillary devices (see Clause 4) when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. This document specifies the safety requirements for press brakes defined in Clause 3. This document does not cover press brakes which transmit energy to impart beam motion by using pneumatic means or mechanical clutch or press brakes that use combination of technologies (e.g. combined hydraulic and screw servo-drive press brake or combined hydraulic servo-drive and screw servo-drive press brake). This document does not cover machines whose principal designed purpose is: sheet folding by rotary action; tube and pipe bending by rotary action; roll bending. This document does not cover hazards related to the use of press brakes in explosive atmospheres. This document is not applicable to press brakes which are manufactured before the date of its publication. This document does not cover the safety aspect of equipment for automatic workpiece loading and unloading where provided. Guidance on how to take into account additional automatic loading and unloading equipment can be found in ISO 11161:2007.

The CEN/TS 18212 series specifies a generic framework for the establishment of requirements and their evaluation methodology for biometric products. The requirements depend on the biometric mode considered, and are adapted to each scenario, through the definition of a variety of application profiles (APs).
This series of standards are expected to provide the evaluation methodology, the individual tests, and the APs (with their particular requirements).
This document specifies:
-   tests for evaluating the interoperability of all biometric input data (received or read);
-   test for evaluating the interoperability of all biometric output data (stored or transmitted);
-   test for evaluating the interoperability of all exchange of information between the TOE and external components or devices.
NOTE 1   Additional parts are provided covering the specifics of each biometric mode. For each of these modalities, application-independent tests are defined, as well as a set of APs, that detail the applicable tests, the evaluation parameters, and the passing criteria.
The Technical Specifications within this series can be taken by any certification body and/or sector, to define and evaluate the requirements for their biometric products within their selected applications.
NOTE 2   Regarding biometrics for public sector applications, see also BSI TR 03121 [2] which can apply.
NOTE 3   For an overview of sectors addressed in the Cybersecurity Act, see Regulation (EU) 2019/881.
NOTE 4   This part defines all potential tests that could be applicable when evaluating the interoperability of a biometric product. It will be the relevant AP, the one that will specify which of these tests are applicable.

This document describes the transaction information requirements of the transactions used in the collaborations described in EN 17016-1:2024. For each transaction are specified the transaction business requirements, the transaction information data model containing definitions of terms, usage descriptions and cardinality of the information elements and the transaction business rules.
This document describes the following transactions:
1)   Order;
2)   Order Change;
3)   Order Cancellation;
4)   Order Response Simple
5)   Order Confirmation;
6)   Order Rejection;
7)   Order Response;
8)   Order Change Confirmation;
9)   Order Change Rejection;
10)   Order Cancellation Confirmation;
11)   Order Cancellation Rejection;
12)   Order Agreement.
How to claim compliance to a transaction is specified in Clause 6.
How to claim conformance to a transaction is also specified in Clause 6.

This document describes a standardized methodology and framework for the development and representation of an ontology that supports a global, open-source approach to implementing the ISO standards on the identification of medicinal products (IDMP) (ISO 11615, ISO/TS 20443, ISO/TS 20451, ISO 11238; ISO/TS 19844, ISO 11239, ISO/TS 20440, and ISO 11240). Realization of the full potential of IDMP requires fully self-describing data. For this purpose, this document describes a methodology and framework that complements the existing conceptual and logical models in the ISO documents on IDMP with an IDMP ontology that enables deep, semantic interoperability based on findable, accessible, interoperable and reusable (FAIR) data principles. This methodology and framework enhance the usage of the IDMP data model as the foundation of medicinal product identification and will ultimately enable collaboration towards drug safety and overall operational efficiency.
This document also describes a methodology for the agile adaptation of the ISO documents on IDMP in connection with cross-jurisdictional IDMP-related legislation and initiatives. This document is intended to be complementary to and independent from formal regulatory guidance. Thus, it enables cross-jurisdictional consistency and supports stakeholders in their regional implementations of IDMP standards. This document does not mandate any specific ontology as an implementation tool, nor is it an instructional guideline on how to build ontologies, which is out of scope of this document.
This document includes key use cases described in the ISO documents on IDMP ISO 11615, ISO 11238 and ISO/TS 19844, as well as further use cases arising from the comprehensive deployment of the ISO documents on IDMP via an ontological framework. Thus, an ontology that represents the IDMP standards aims to cover the complete collection of ISO standards on IDMP regarding key interoperability issues that implementing stakeholders are facing.

This Technical Specification (TS) series provide a generic framework for the establishment of requirements and their evaluation methodology for biometric products. The requirements depend on the biometric mode considered, and are adapted to each scenario, through the definition of a variety of application profiles (APs). In addition, this TS series provides the definition of the individual tests that can be applied to a biometric product.
This document specifies the context for the evaluation of biometric products within the context of the European Union, as well as the general requirements for such evaluation. This will be defined in a biometric mode-independent point of view, as well as not being biased by the particular application which is the target of the biometric product to be assessed.
This first part defines the following items:
-   biometric evaluation process;
-   biometric evaluation phases;
-   how to define each particular biometric test;
-   how to define the profiling for a particular application.
NOTE 1   Future parts of the CEN/TS series are planned to address the specifics of each biometric mode. For each of these modalities, this document specifies application-independent tests, as well as a set of APs, that detail the applicable tests, the evaluation parameters, and the passing criteria.
NOTE 2   Regarding biometrics for public sector applications, see also BSI TR 03121 [7] which can apply.
NOTE 3   For an overview of sectors addressed in the Cybersecurity Act, see Regulation (EU) 2019/881.

This document provides requirements on identification and labelling of medicinal products from the point of manufacturing of packaged medicinal product to the point of dispensing the product.
This document outlines commonly accepted international practices for automatic identification and data capture (AIDC) barcoding solutions for applications and applies to manufacturers, distributors, healthcare facilities and all parties involved in labelling and distribution of packaged medicinal products. These users can, however, consider the coding interoperability requirements for other AIDC technologies, e.g. radio frequency identification (RFID); that technology is not addressed in this document except as for information.

This document defines a generic incident management process and supporting documentation that can be used to implement incident management and to manage incidents within most organizations, projects or operations activities for a system, service, software, or product. This document also provides supporting diagrams describing the process and example documents. This document is applicable to incident management in all life cycle models (e.g. incremental, waterfall, evolutionary, agile). This document covers incidents identified across the life cycle, including those that arise during both development (e.g. defects) and operation (e.g. those handled by service management).

This document specifies requirements for the most important metrological and design characteristics of plain limit gauges of linear size. This document defines the different types of plain limit gauges used to verify linear dimensional specifications associated with linear size. This document also defines the design characteristics and the metrological characteristics for these limit gauges as well as the new or wear limits state maximum permissible limits (MPLs) for the new state or wear limits state for these metrological characteristics. In addition, this document describes the use of limit gauges. It covers linear sizes of up to 500 mm.

This document specifies the general requirements on procedures for the preservation, handling and storage of samples of sewage and waterworks sludge, suspended matter, marine sediments and freshwater sediments for either chemical, physical, radiochemical, hydrobiological or microbiological examination, or all, in the laboratory. The procedures in this document are not applicable to dried samples of sludge, sediment and suspended matter. NOTE The storage conditions given do not necessarily apply for derived samples, e.g. sediment eluates or extracts. This document is not applicable to samples intended for biotesting with ecotoxicological or biological assays (which is specified in ISO 5667-16[5]) nor intended for microplastics (which is specified in ISO 5667-27[7]).

This document specifies a reference model and process for Collaborative Modeling and Simulation Environment (CMSE), which establishes a general framework of CMSE to provide guidance for implementation of joint simulation projects. The CMSE which is based on the reference process and the reference model including neutral interfaces and meta-models can enable service-oriented share-use of the infrastructure, integration of the software and collaboration of the business to improve collaboration among all kinds of stakeholders involved in a joint simulation project which needs on-demand simulation at any time and any place upon different manufacturing platforms owned by different enterprises or by different departments within an enterprise. This document can not only be applied to manufacturing enterprises but also be applied to other kinds of enterprises. It is intended for use by stakeholders who are concerned with developing and deploying solutions of the joint simulation project based on information and communication technology. It focuses on simulation activities related cross-platform simulation collaboration capability supporting business planning and logistics, manufacturing operations management and production control within or among enterprises, which can cover the levels from 2 to 4 of the functional hierarchy of manufacturing systems in IEC 62264-3[27]. This document specifies the following: the general framework of CMSE; the methodology of the joint simulation project analysis and realization by CMSE. This document does not relate to the simulation irrelevant collaboration environment, and does not specify the specific approach to implement CMSE in the solution formulation of joint simulation projects.

The document specifies testing procedures for determining calibration error for radiosonde humidity sensors sampled from mass production batches based on varying the levels of relative humidity at atmospheric upper-air temperatures using a laboratory setup. This document provides: technical requirements for a laboratory setup to evaluate the calibration errors of radiosonde humidity measurement; a test procedure for evaluating calibration error of radiosonde humidity sensors for a temperature range1) of −90 °C to 35 °C and for a relative humidity of 1 %rh to 100 %rh. Note, this document, is based upon relative humidity calculated by the percentage of water vapour pressure divided by saturation water vapour pressure over liquid water, not over ice, even at temperatures below 0 °C; hence, the maximum relative humidity is less than 100 %rh below 0 °C; a method for evaluating the uncertainty for the measured radiosonde humidity calibration errors. 1) Currently, the lowest possible temperature of commercially-available climate chambers is approximately -75 °C. The temperature range can be adjusted based on the capability of the climate chamber used.

This document defines and establishes a framework for access management (AM) and the secure management of the process to access information and information and communications technologies (ICT) resources, associated with the accountability of a subject within some contexts.
This document provides concepts, terms and definitions applicable to distributed access management techniques in network environments.
This document also provides explanations about related architecture, components and management functions.
The subjects involved in access management can be uniquely recognized to access information systems, as defined in the ISO/IEC 24760 series.
The nature and qualities of physical access control involved in access management systems are outside the scope of this document.

This document specifies necessary but not sufficient safety requirements for the use of SbW systems in passenger cars and light commercial vehicles for series application. This document does not replace the full application of the ISO 26262 series of standards and their implementation in safety-related measures. This document defines requirements for manual driving where the driver holds the steering wheel. NOTE Misuse of hands-free driving is not considered. This document does not contain any requirements for the use of automated lateral vehicle control functions. The requirements consider systems consisting of a road wheel actuator (RWA), hand wheel actuator (HWA), and a steering wheel for driver input. Deviating concepts need to be analysed by the user for transferability.

This document, within the context of methods and tools that support adoption, construction, operation, and management of product line maturity framework, specifies: processes for managing, operationalizing, and supporting product line maturity framework adoption (those processes are described in terms of purpose, inputs, tasks, and outcomes); method capabilities to support the defined tasks of each process; tool capabilities that automate or semi-automate tasks and methods. This document does not concern the processes and capabilities of methods and tools for a single system but rather deals with those for a family of products.

This document specifies a micrographic method of determining the non-metallic inclusions in rolled or forged steel products having a reduction ratio of at least 3 using the images of a standard reference chart or direct measurement by image analysis technologies. The standard reference chart described in this document is not entirely applicable for certain types of steel (e.g. free cutting steels).

This document establishes a method for measurement of specific heat capacity, cp, using temperature modulated differential scanning calorimetry.

Creating an amendment to list the EN IEC 60079-15:2019 in OJEU by submitting European elements (Annex ZZ and Annex ZA)

IEC 60730-2-24:2026 applies to automatic displacement electrical controls
- for use in, on, or in association with appliances for household and similar use;
NOTE 1 Through this document, the word "control" means "displacement electrical control".
EXAMPLE 1 Displacement electrical controls used in electrical pressure cookers with gross volume up to 25 l, with working pressure over 4 kPa and less than 150 kPa.
- that are AC or DC powered controls with a rated voltage not exceeding 690 V AC or 600 V DC;
- used in, on, or in association with equipment that use electricity;
- that are mechanically or electrically operated, responsive to change of position of point of action.
NOTE 2 Requirements for manual switches not forming part of an automatic control are covered in IEC 61058‑1‑1.
This document applies to
- inherent safety of automatic electro-mechanical displacement electrical controls;
- functional safety of automatic electro-mechanical displacement electrical controls;
- the operating values, operating times, and operating sequences where such are associated with equipment safety;
- displacement electrical controls having temperature sensing element(s), in which cases additional requirements can be considered to be necessary. Requirements for temperature sensing controls are included in IEC 60730-2-9.
This document specifies the requirements for construction, operation and testing of automatic displacement electrical controls used in, on, or in association with equipment.
This document does not
- apply to automatic electronic controls;
- take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer applies.
NOTE 3 For more information about guidance to the application of displacement electrical controls, see Annex AA.
This part 2-24 is intended to be used in conjunction with IEC 60730-1. It was established on the basis of the sixth edition of that standard (2022). Consideration may be given to future editions of, or amendments to, IEC 60730‑1. This part 2-24 supplements or modifies the corresponding clauses in IEC 60730-1, so as to convert that publication into the IEC standard: Particular requirements for displacement electrical controls. Where this part 2-24 states "addition", "modification" or "replacement", the relevant require­ment, test specification or explanatory matter in Part 1 should be adapted accordingly. Where no change is necessary, part 2-24 indicates that the relevant clause or subclause applies.

IEC 60127-7:2026 covers requirements for miniature fuse-links for special applications. This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 125 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres.

IEC 61803:2026 applies to all high-voltage direct current (HVDC) converter stations with line-commutated converters (LCC) as well with voltage-sourced converters (VSC) used for power exchange (power transmission or back-to-back installation) in utility systems. For line-commutated converters (LCC), this document presumes the use of 12-pulse thyristor converters but can, with due care, also be used for 6-pulse thyristor converters. Where VSC is referred to in this document, it is assumed to be of the MMC-type or similar, with very low harmonic generation. It is important to treat other types of VSC as appropriate. In some applications, synchronous compensators, static var compensators (SVC), or static synchronous compensator (STATCOM) are connected to the AC bus of the HVDC converter station. The loss determination procedures for such equipment are not included in this document. This document presents a set of standard procedures for determining the total losses of an HVDC converter station, except for VSC valves which are covered by the IEC 62751 series. The procedures cover all parts, except as noted above, and address no-load operation and operating losses together with their methods of calculation which use, wherever possible, measured parameters. Converter station designs employing novel components or circuit configurations compared to the typical design assumed in this document, or designs equipped with unusual auxiliary circuits that can affect the losses, are assessed on their own merits.
This edition includes the following significant technical changes with respect to the previous edition:
a) HVDC stations with voltage-sourced converters (VSC) technology have been included;
b) to facilitate the application of this document and to ensure its quality remains consistent, 5.1.8 and 5.8 have been reviewed, taking into consideration that the present thyristor production technology provides considerably less thyristor parameters dispersion comparing with the situation in 1999 when the first edition of IEC 61803 was developed; therefore, the production records of thyristors can be used for the power losses calculation;
c) the calculation of the total station load losses (cases D1 and D2 in Annex C) has been corrected.

IEC TS 62332-1:2026 specifies a dual-temperature test procedure for the thermal evaluation and qualification of electrical insulation systems (EISs). This document is applicable to EISs containing solid and liquid components where the thermal ageing factor is dominant, without restriction to voltage class. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- Modifications have been made based on an extensive test series conducted using this methodology based on the first edition. This included updating expected times and temperatures to use in order to get useful results, as well as making the range of equipment covered more broad. The method now covers electrotechnical devices using different sealing systems, as well as devices using enamel covered wires.

This document is applicable to products that emit laser radiation for the purpose of free space optical data transmission. This document does not apply to laser products designed for the purposes of transmitting optical power for applications such as material processing or medical treatment. This document also does not apply to the use of laser products in explosive atmospheres (see IEC 60079-0). Light-emitting diodes employed by free space optical communication systems, used for the purpose of free space optical data transmission, do not fall into the scope of this document. NOTE If the laser product incorporates an optical fibre that extends from the confinements of the enclosure, the requirements in IEC 60825-2 applies.

IEC 62301:2026 specifies methods of measurement of electrical power in standby mode(s) and other non-active modes (such as off mode) and the reporting of the results. The measurement of power and energy use in networked standby mode, is covered by IEC 63474:2026.
This document applies to electronic and electrical equipment powered by:
- low voltage AC power (LV ≤ 1 000 V AC), or
- low voltage DC power (LV ≤ 1 500 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
- extra low voltage AC power (ELV ≤ 50 V AC), or
- extra low voltage DC power (ELV ≤ 120 V DC) that is ripple-free, measured between conductors or between a conductor and earth, or
- an external power supply that provides low voltage or extra low voltage AC or DC power, or
- a separate source of extra low voltage DC power, or
- an internal main battery.
Conditions that are out of scope:
- active modes (primary function)
- networked standby mode (which is covered by IEC 63474:2026)
- conditions where main batteries are being charged other than in maintenance mode
- disconnected condition of the equipment.
This document applies to the following product groups where a non-active mode is present:
- household appliances, electrical and electronic equipment such as information technology equipment, audio, video and multimedia systems and equipment,
- gas burning equipment with electrical components.
The measurement of power, energy use and performance of products during their intended use (when performing their primary functions) are generally specified in product standards and are not covered by this document.
Where this document is referenced by performance standards or procedures, these are to define and name the relevant non-active mode to which this test procedure is applied.
Non-active modes for lighting equipment and the measurement of power is specified in IEC 63103.
Edge equipment can also include auxiliary batteries.
Annex A shows the conceptual framework of power modes and functions.
This document does not specify safety requirements. It does not specify minimum performance requirements nor does it set maximum limits on power or energy use.
This document has the status of a group energy efficiency publication in accordance with IEC Guide 118.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) expansion of the scope in line with the approved horizontal application of this standard;
b) inclusion of battery powered and DC powered devices;
c) complete revision and expansion of the definitions (this has been done in conjunction with TC 100/TA19 JWG2 and the definitions in this document and IEC 63734:2026 for networked standby are fully aligned);
d) clarification that this document covers all non-active modes except for networked standby mode(s), which is covered by IEC 63734:2026;
e) reiteration that a wide range of product committees and their standards can reference this document and that they are free to define modes relevant for their products and to some extent measurement conditions that may be product specific, while using the broad methodology set out in this document;
f) more precise specification of room illuminance requirements has been added, where required;
g) mandatory requirements for data logging of test data;
h) requirement that no data loss or out of range records occur within the data set being used to assess product performance;
i) removal of the Average reading method and Direct meter reading method as valid measurement methods;
j) greater detail in set-up procedures;
k) revision of stability requirements, including the refinement of linear regression validity requirements and cyclic load validity requirements, and the introduction of a new alternative approach called the moving average method t

IEC 60947-6-1:2026 is available as IEC 60947-6-1:2026 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60947-6-1:2026 applies to transfer switching equipment (TSE), to be used in power systems for ensuring the continuity of the supply and allowing the energy management of the installation, by transferring a load between power supply sources, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC. Specific requirements for bypass/isolation transfer switch equipment are given in Annex C, ATSE having closed transition capability are given in Annex D, stand-alone ATS controllers are given in Annex E, and TSE for electric driven fire pump controllers are given in Annex F. It covers: - manually operated transfer switching equipment (MTSE); - remotely operated transfer switching equipment (RTSE); - automatic transfer switching equipment (ATSE), including the controller; - stand-alone ATS controllers; - bypass/isolation transfer switch equipment (BTSE); - ATSE having closed transition capability; - fire pump TSE. It does not cover: - TSE configurations that are not fully manufacturer type tested or marked according to this document as a complete transfer switch; - auxiliary contacts (for guidance, see IEC 60947-5-1); - transfer switches used in explosive atmospheres (for guidance, see IEC 60079 (all parts)); - embedded software design (for guidance, see IEC TR 63201); - cybersecurity aspects (for guidance, see IEC 63208); - TSE rated for direct-on-line starting asynchronous motor of design NE and HE, according to IEC 60034-12. (for guidance, see AC-3e utilisation category according to IEC 60947 4 1); - other types of TSE under consideration including overlapping neutral TSE, multi-source TSE (i.e. TSE with more than two sources of supply), TSE with load-shedding functions, bus-tie TSE, and hybrid TSE; - static transfer switches covered by IEC 62310 series. This fourth edition cancels and replaces the third edition published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - clarification of scope; - clarification of terms and definitions; - Annex C for Bypass/Isolation Transfer Switch Equipment; - Annex D for ATSE having closed transition capability; - Annex E for Stand-alone ATS controller; - Annex F for TSE used with electric driven fire pump control equipment.

ISO 12487:2026 This document specifies the requirements and methods for the clinical investigation of medical electrical (ME) equipment used to measure the body temperature in indirect measurement mode.
This document covers both intermittently and continuously measuring clinical thermometers.
NOTE 1 This document does not apply to clinical thermometers measuring the body temperature in direct measurement mode.
NOTE 2 For clinical thermometers in direct measurement mode determining the technical accuracy in accordance with ISO 80601-2-56:—1) is considered sufficient.
This document is applicable to clinical thermometers with claimed measurement time shorter than 60 seconds (for methods such as oral or rectal measurement), or shorter than 5 minutes (for methods such as axillary measurement), and which are treated as predictive type thermometers and fall under the scope of this document.
This document specifies additional disclosure requirements.
This document does not apply to the clinical investigation of a screening thermographs for human febrile temperature screening whose laboratory accuracy requirements are described in IEC 80601-2-59.
This document does not apply to pulmonary artery catheter for the determination of cardiac output by thermodilution.
NOTE 3 ISO 80601-2-56:—1) does include pulmonary artery catheter for the determination of cardiac output by thermodilution.

This document specifies requirements for implantation test methods for preclinical assessment of the local effects after implantation of medical devices or materials intended for use in medical devices. This document is applicable to the evaluation of local tissue responses from medical devices that are intended to be used where skin or mucosal tissue is breached, when required.
This document is applicable to medical device or materials that require implantation evaluation and can be solid or non-solid (such as porous materials, liquids, gels, pastes, powders, and particulates), absorbable, degradable, non- absorbable, or can be tissue-engineered medical products (TEMPs).
These implantation tests are not intended to evaluate or determine the performance of the test sample in terms of mechanical loading or functional performance. This document also does not provide guidance on methods and study design to satisfy requirements for systemic toxicity, carcinogenicity, teratogenicity or mutagenicity. However, the study designs can be modified to also assess other biological effects.

This document encompasses the determination of the fatty acid profile in algae and algae products, thereby including micro- and macroalgae, according to the definitions adopted by CEN. This determination enables that all fatty acids present at a significant level (> 1 % of the total fatty acids) in the algal matrix are quantified in an accurate and reproducible way. The concentration of each fatty acid will be available in relative (in %) and, by means of an appropriate internal standard, absolute (mg/g dw) terms. Moreover, the method described in this standard ensures a practical and safe technical approach, whose protocol details and all related know-how will be easily and economically transferrable to all the sector stakeholders. This document ensures this objective by a comprehensive and fully detailed description of all technical steps from the sample itself (including its state and form) to the gas chromatographic technique and the calculation of the fatty acid content. The wording avoids any risk of ambiguity or wrong interpretation. Finally, this methodological standard will be informed by other equivalent standards applied to other matrices and will take into account other standards concerning specific treatment or extractive procedure of the sample prior to the fatty acid analysis itself.

This document specifies requirements to the safe handling and the physical, chemical and biological testing of plastic containers for parenterals.
This document is applicable to plastic containers for parenterals having one or more chambers and having a total nominal capacity in the range of 50 ml to 5 000 ml such as film bags or blow-moulded plastic bottles for direct administration of infusion (injection) solutions.
NOTE 1        In some countries, national or regional pharmacopoeias or other government regulations are legally binding, and these requirements take precedence over this document.
NOTE 2        Annex E provides explanations about the history of the development of the standard and summarises the different arguments discussed within ISO/TC 76 during the elaboration of the document.
NOTE 3        Annex F provides recommendations regarding sustainability.
NOTE 4        Annex G provides information on attributive and variable testing.

This document specifies the requirements relating to:
Steel X5CrNiCu17-4 (1.4542)
Air melted
Solution treated and precipitation treated
Bars
a or D ≤ 200 mm
Rm ≥ 930 MPa
for aerospace applications.
W.nr: 1.4542.
ASD-STAN: FE-PM3801.

This part of EN 16432 series specifies how to integrate the particular aspects of ballastless track systems for attenuation of vibration into the system and subsystem design and component configuration according to EN 16432-2:2017.
The general system and subsystem design requirements are assigned from EN 16432-1:2017.
Additional noise and vibration requirements can be project specific and are not provided by this document. Acoustic requirements are considered as input for the track design from the acoustic design. The acoustic design and the track design affect each other and may require an iterative overall design process.
The range of applicability covers all kind of rail systems including Urban Rail systems.

IEC TS 60034-27-6:2026 which is a Technical Specification, deals with the on-line electrical detection and monitoring of partial discharges on both motors and generators whose rotor windings or stator windings, or both, are supplied from converters. The tests are applicable to both type I and type II insulation systems, encompassing AC windings rated 300 V and above.
Details of non-electrical methods such as optical or acoustic detection are not included. The on-line measurement of PD where the winding is supplied via slip rings are also not covered.

This document specifies requirements and guidelines for assessing the chemical airborne cleanliness of equipment and materials which are foreseen to be used in cleanrooms and associated controlled environments that are linked to the ISO standard for air cleanliness by chemical concentration (see ISO 14644-8).
This document does not apply to the following:
health and safety requirements;
compatibility with cleaning agents and techniques;
cleanability;
biocontamination;
specific requirements of equipment and materials for processes and products;
design details of equipment.

This document specifies requirements for classification of covered electrodes and deposited metal in the as-welded condition and in the post-weld heat-treated condition for manual metal arc welding of high-strength steels with a minimum yield strength greater than 500 MPa or a minimum tensile strength greater than 570 MPa.
This document is a combined specification providing a classification utilizing a system based on the yield strength and an average impact energy of 47 J of the all-weld metal, or utilizing a system based on the tensile strength and an average impact energy of 27 J of the all-weld metal.
Clauses, subclauses and tables which carry the suffix “System A” are applicable only to covered electrodes classified under the system based on the yield strength and an average impact energy of 47 J of the all-weld metal given in this document.
Clauses, subclauses and tables which carry the suffix “System B” are applicable only to covered electrodes classified under the system based on the tensile strength and an average impact energy of 27 J of the all-weld metal given in this document.
Subclauses and tables which do not have either the suffix “System A” or the suffix “System B” are applicable to all covered electrodes classified under this document.

This document describes the typical accessories used for Large Power Transformers.

This document is applicable to safety-related electronic systems (including subsystems and equipment) for railway signalling applications. This document applies to generic systems (i.e. generic products or systems defining a class of applications), as well as to systems for specific applications. The scope of this document and its relationship with other CENELEC standards are shown in Figure 1. This document is applicable only to the functional safety of systems. It does not deal with other aspects of safety such as occupational health and safety of personnel or potential threats created by the technology regardless of their intended functions (e.g. presence of sharp edges, presence of electric voltage, presence of combustible material). Cybersecurity aspects of functional safety are addressed only to the extent consistent with the application of the relevant standards, where needed. This document applies to all the phases of the life cycle of a safety-related electronic system, focusing in particular on phases from 4 (specification of system requirements) to 10 (system acceptance) as defined in EN 50126 1:2017. Requirements for systems which are not related to safety are outside the scope of this document. This document is not necessarily applicable to systems, subsystems or equipment which had already been accepted prior to the date of withdrawal (dow) of the standards conflicting with this document. However, so far as reasonably practicable, it is applicable to modifications and extensions to such systems, subsystems and equipment. NOTE In the case of partial modifications, it can happen that the system can no longer be declared compliant with a single version of the standard, meaning that the modified part will be compliant with the current version and the unmodified parts will be compliant with the previous version. This document is primarily applicable to systems, subsystems or equipment which have been specifically designed and manufactured for railway signalling applications. It is also applicable, to the extent of 6.2, to general-purpose or industrial equipment (e.g. power supplies, display screens, or other commercial off the shelf items) which is procured for use as part of a safety-related electronic system. This document is aimed at railway duty holders, railway suppliers, and assessors as well as at safety authorities, although it does not define an approval process to be applied by the safety authorities. Figure 1 - Scope of the main CENELEC railway application standards

IEC 62820-1-1:2026 specifies the technical requirements for building intercom systems and equipment used for building entry.

This document is applicable to all electronic equipment for control, regulation, protection, diagnostic, energy supply installed on railway vehicles and any relevant elements of rolling stock subsystems (e.g. external doors, On-Board ETCS functionality, wheel slide protection). For the purpose of this document, electronic equipment is defined as equipment composed of electronic components (e.g. resistors, capacitors, transistors, diodes, integrated circuits, hybrids, application specific integrated circuits, wound components and relays), and recognized associated components (e.g. connectors, mechanical parts). These components are mainly mounted on printed circuit boards. Sensors (e.g. current, voltage, speed) and semiconductor drive units for power electronic devices are covered by this document. Complete semiconductor drive units and power converters are covered by EN 61287 1. This document covers the requirements for operating conditions, design, documentation, testing and integration of electronic equipment, as well as hardware and software requirements considered necessary for compliant and reliable equipment. Specific requirements related to practices necessary to ensure defined safety integrity level or functional safety are not covered by this document. Nevertheless, this document is applicable to the hardware of all rolling stock electronic equipment or systems performing safety-related functions. The software development requirements for on-board railway equipment are specified by EN 50716.

IEC 62841-3-11:2024 applies to transportable combined mitre and bench saws intended to be used with a toothed saw blade for cutting wood and analogous materials, plastics and nonferrous metals except magnesium with a saw blade diameter not exceeding 315 mm, which hereinafter is simply referred to as saw or tool. This document does not apply to: - saws intended to cut other metals, such as magnesium, steel and iron, or food; - saws with an automatic feeding device; - saws designed for use with abrasive wheels; - saws designed for use with dado blades; - single function bench or table saws; - single function mitre saws; - combined mitre and bench saws other than transportable. NOTE 101 Transportable saws intended to cut ferrous metals will be covered by a future part of IEC 62841-3. NOTE 102 Transportable tools designed for use with abrasive wheels are covered by IEC 62841-3-10:2015. NOTE 103 Transportable table saws are covered by IEC 62841-3-1:2014. NOTE 104 Transportable mitre saws are covered by IEC 62841-3-9:2020. NOTE 105 In Europe (EN IEC 62841-3-11), the following additional NOTE applies: NOTE Z101 Combined mitre and bench saws other than transportable are covered by EN 1870-3:2014. This document is to be used in conjunction with IEC 62841-1:2014. This document supplements or modifies the corresponding clauses in IEC 62841-1, so as to convert it into the IEC Standard: Particular requirements for transportable combined mitre and bench saws.

2021-12-07: This prAA includes CMs to prEN IEC (PR=75392)
DOW=DOR+48 months

This document specifies processes for the management and operation of data centres. The primary focus of this document is the processes necessary to deliver the expected level of resilience, availability, risk management, risk mitigation, capacity planning, security and resource and energy efficiency. The secondary focus is on organization and data centre management to align the actual and future demands. Only processes specific for data centres are in the scope of this document. Business processes like people management, financial management, etc. are out of scope.

IEC 61788-15:2026 describes measurements of the intrinsic surface impedance (Zs) of HTS films at microwave frequencies by a modified two-resonance mode dielectric resonator method. The object of measurement is to obtain the temperature dependence of the intrinsic Zs at the resonant frequency f0. The frequency and thickness range and the measurement resolution for the Zs of HTS films are as follows: - frequency: up to 40 GHz; - film thickness: greater than 50 nm; - measurement resolution: 0,01 mΩ at 10 GHz. It is crucial that the Zs data at the measured frequency, and that scaled to 10 GHz be reported for comparison, assuming the f2 rule for the intrinsic surface resistance, Rs (f < 40 GHz), and the f rule for the intrinsic surface reactance, Xs. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - informative Annex B, combined relative standard uncertainty in the intrinsic surface impedance is added; - the terms, ‘precision and accuracy’, are replaced with uncertainty; - results from a round robin test are added.

RTBR/SMG-0019R1

DEN/ERM-TGAERO-31-1

The present document specifies technical requirements, limits and test methods for Short Range Devices in the non-
specific category operating in the frequency range 25 MHz to 1 000 MHz.
The non specific SRD category is defined by the EU Commission Decision 2019/1345/EU [i.3] as:
"The non-specific short-range device category covers all kinds of radio devices, regardless of the application or the
purpose, which fulfil the technical conditions as specified for a given frequency band. Typical uses include telemetry,
telecommand, alarms, data transmissions in general and other applications".
These radio equipment types are capable of transmitting up to 500 mW effective radiated power and operating indoor or
outdoor.
NOTE: The relationship between the present document and the essential requirements of article 3.2 of
Directive 2014/53/EU [i.2] is given in Annex A

DEN/ERM-TG28-561

REN/MSG-TFES-15-3

ABSTRACT
This test method deals with the acceptance criteria for the magnetic particle examination of forged steel crankshafts and forgings having large main bearing journal or crankpin diameters. Covered here are three classes of forgings, which shall be evaluated under two areas of inspection, namely: major critical areas, and minor critical areas. During inspection, magnetic particle indications shall be classified as: surface indications, which include nonmetallic inclusions or stringers, open or twist cracks, flakes, or pipes; open or pinpoint indications; and non-open indications. Procedures for dimpling, depressing, inspection, and product marking are also mentioned.
SCOPE
1.1 This is an acceptance specification for the magnetic particle inspection of forged steel crankshafts having main bearing journals or crankpins 4 in. [200 mm] or larger in diameter.  
1.2 There are three classes, with acceptance standards of increasing severity:  
1.2.1 Class 1.  
1.2.2 Class 2 (originally the sole acceptance standard of this specification).  
1.2.3 Class 3 (formerly covered in Supplementary Requirement S1 of Specification A456 – 64 (1970)).  
1.3 This specification is not intended to cover continuous grain flow crankshafts (see Specification A983/A983M); however, Specification A986/A986M may be used for this purpose.
Note 1: Specification A668/A668M is a product specification which may be used for slab-forged crankshaft forgings that are usually twisted in order to set the crankpin angles, or for barrel forged crankshafts where the crankpins are machined in the appropriate configuration from a cylindrical forging.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch units.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers the properties and requirements for two types of asbestos-free asphalt roof coatings consisting of an asphalt base, volatile petroleum solvents, and mineral or other stabilizers, or both, mixed to a smooth, uniform consistency suitable for application by squeegee, three-knot brush, paint brush, roller, or by spraying. Type I is made from asphalts characterized as self-healing, adhesive, and ductile, while Type II is made from asphalts characterized by high softening point and relatively low ductility. The coatings shall conform to specified composition limits for water, nonvolatile matter, minerals and/or other stabilizers, and bitumen (asphalt). They shall also meet physical requirements as to uniformity, consistency, and pliability and behavior at given temperatures.
SCOPE
1.1 This specification covers asbestos-free asphalt roof coatings of brushing or spraying consistency.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification:  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
4.1 Different electroplating systems can be corroded under the same conditions for the same length of time. Differences in the average values of the radius or half-width or of penetration into an underlying metal layer are significant measures of the relative corrosion resistance of the systems. Thus, if the pit radii are substantially higher on samples with a given electroplating system, when compared to other systems, a tendency for earlier failure of the former by formation of visible pits is indicated. If penetration into the semi-bright nickel layer is substantially higher, a tendency for earlier failure by corrosion of basis metal is evident.
SCOPE
1.1 This test method provides a means for measuring the average dimensions and number of corrosion sites in an electroplated decorative nickel plus chromium or copper plus nickel plus chromium coating on steel after the coating has been subjected to corrosion tests. This test method is useful for comparing the relative corrosion resistances of different electroplating systems and for comparing the relative corrosivities of different corrosive environments. The numbers and sizes of corrosion sites are related to deterioration of appearance. Penetration of the electroplated coatings leads to appearance of basis metal corrosion products.  
1.2 The values stated in SI units are to be regarded as the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
5.1 This test method is useful in characterizing certain petroleum products, as one element in establishing uniformity of shipments and sources of supply.  
5.2 See Guide D117 for applicability to mineral oils used as electrical insulating oils.  
5.3 The Saybolt Furol viscosity is approximately one tenth the Saybolt Universal viscosity, and is recommended for characterization of petroleum products such as fuel oils and other residual materials having Saybolt Universal viscosities greater than 1000 s.  
5.4 Determination of the Saybolt Furol viscosity of bituminous materials at higher temperatures is covered by Test Method E102/E102M.
SCOPE
1.1 This test method covers the empirical procedures for determining the Saybolt Universal or Saybolt Furol viscosities of petroleum products at specified temperatures between 21 and 99 °C [70 and 210 °F]. A special procedure for waxy products is indicated.  
Note 1: Test Methods D445 and D2170/D2170M are preferred for the determination of kinematic viscosity. They require smaller samples and less time, and provide greater accuracy. Kinematic viscosities may be converted to Saybolt viscosities by use of the tables in Practice D2161. It is recommended that viscosity indexes be calculated from kinematic rather than Saybolt viscosities.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers SEBS (styrene-ethylenebutylene-styrene)-modified mopping asphalt intended for use in built-up roof construction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for adhering insulation boards used in various types of roofing systems. This specification is intended as a material specification and issues regarding the suitability of specific roof constructions or application techniques are beyond its scope. The specified tests and property values are intended to establish minimum properties. In place system design criteria or performance attributes are factors beyond the scope of this specification. The base asphalt shall be prepared from crude petroleum and the SEBS-modified asphalt shall incorporate sufficient SEBS as the primary polymeric modifier. The SEBS modified asphalt shall be homogeneous and free of water and shall conform to the prescribed physical properties including (1) softening point before and after heat exposure, (2) softening point change, (3) flash point, (4) penetration before and after heat exposure, (5) penetration change, (6) solubility in trichloroethylene, (7) tensile elongation, (8) elastic recovery, and (9) low temperature flexibility. The sampling and test methods to determine compliance with the specified physical properties, as well as the evaluation for stability during heat exposure are detailed.
SCOPE
1.1 This specification covers SEBS (styrene-ethylene-butylene-styrene)-modified asphalt intended for use in built-up roof construction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for adhering insulation boards used in various types of roof systems.  
1.2 This specification is intended as a material specification. Issues regarding the suitability of specific roof constructions or application techniques are beyond its scope.  
1.3 The specified tests and property values used to characterize SEBS-modified asphalt are intended to establish minimum properties. In-place system design criteria or performance attributes are factors beyond the scope of this specification.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.5 This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers three types of aluminum-pigmented asphalt roof coatings suitable for application to roofing or masonry surfaces by brush or spray. Type I is nonfibered, Type II is fibered with asbestos, and Type III is fibered other than asbestos. The coatings shall adhere to chemical requirements such as composition limits for water, nonvolatile matter, metallic aluminum, and insolubility in CS2. They shall also meet physical requirements as to uniformity, consistency, and luminous reflectance.
SCOPE
1.1 This specification covers asphalt-based, aluminum-pigmented roof coatings suitable for application to roofing or masonry surfaces by brush or spray.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers coal tar primer suitable for use with coal tar pitch in roofing, dampproofing, and waterproofing below or above ground level, for application to concrete, masonry, and coal tar surfaces. Different tests shall be conducted in order to determine the following physical properties of coal tar primer: water content, consistency, specific gravity, matter insoluble in benzene, distillation, and coke residue content.
SCOPE
1.1 This specification covers coal tar primer suitable for use with coal tar pitch in roofing, dampproofing, and waterproofing below or above ground level, for application to concrete, masonry, and coal tar surfaces.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
4.1 This procedure measures the amount of hydrogen gas generation potential of aluminized emulsion roof coating. There is the possibility of water reacting with aluminum pigment to generate hydrogen gas. This situation is to be avoided, so this test was designed to evaluate coating formulations and assess the propensity to gassing.
SCOPE
1.1 This test method covers a hydrogen gas and stability test for aluminum emulsified asphalt coatings.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile. Coated glass mat water-resistant gypsum backing panel shall consist of a noncombustible water-resistant gypsum core, surfaced with glass mat, partially or completely embedded in the core, and with a water-resistant coating on one surface. The specimens shall be tested for flexural strength, humidified deflection, core hardness, end hardness, edge hardness, nail pull resistance, water resistance, and surface water absorption. Coated glass mat water-resistant gypsum backing panel shall have surfaces true and free of imperfections that render the panel unfit for its designed use.
SCOPE
1.1 This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Within the text, the SI units are shown in brackets.  
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
4.1 This practice shall be used when ultrasonic inspection is required by the order or specification for inspection purposes where the acceptance of the forging is based on limitations of the number, amplitude, or location of discontinuities, or a combination thereof, which give rise to ultrasonic indications.  
4.2 The acceptance criteria shall be clearly stated as order requirements.
SCOPE
1.1 This practice for ultrasonic examination covers turbine and generator steel rotor forgings covered by Specifications A469/A469M, A470/A470M, A768/A768M, and A940/A940M. This practice shall be used for contact testing only.  
1.2 This practice describes a basic procedure of ultrasonically inspecting turbine and generator rotor forgings. It does not restrict the use of other ultrasonic methods such as reference block calibrations when required by the applicable procurement documents nor is it intended to restrict the use of new and improved ultrasonic test equipment and methods as they are developed.  
1.3 This practice is intended to provide a means of inspecting cylindrical forgings so that the inspection sensitivity at the forging center line or bore surface is constant, independent of the forging or bore diameter. To this end, inspection sensitivity multiplication factors have been computed from theoretical analysis, with experimental verification. These are plotted in Fig. 1 (bored rotors) and Fig. 2 (solid rotors), for a true inspection frequency of 2.25 MHz, and an acoustic velocity of 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s]. Means of converting to other sensitivity levels are provided in Fig. 3. (Sensitivity multiplication factors for other frequencies may be derived in accordance with X1.1 and X1.2 of Appendix X1.)  
FIG. 1 Bored Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging bore surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 2 Solid Forgings
Note 1: Sensitivity multiplication factor such that a 10 % indication at the forging centerline surface will be equivalent to a 1/8 in. [3 mm] diameter flat bottom hole. Inspection frequency: 2.0 MHz or 2.25 MHz. Material velocity: 2.30 in./s × 105 in./s [5.85 cm/s × 105 cm/s].
FIG. 3 Conversion Factors to Be Used in Conjunction with Fig. 1 and Fig. 2 if a Change in the Reference Reflector Diameter is Required
1.4 Considerable verification data for this method have been generated which indicate that even under controlled conditions very significant uncertainties may exist in estimating natural discontinuities in terms of minimum equivalent size flat-bottom holes. The possibility exists that the estimated minimum areas of natural discontinuities in terms of minimum areas of the comparison flat-bottom holes may differ by 20 dB (factor of 10) in terms of actual areas of natural discontinuities. This magnitude of inaccuracy does not apply to all results but should be recognized as a possibility. Rigid control of the actual frequency used, the coil bandpass width if tuned instruments are used, and so forth, tend to reduce the overall inaccuracy which is apt to develop.  
1.5 This practice for inspection applies to solid cylindrical forgings having outer diameters of not less than 2.5 in. [64 mm] nor greater than 100 in. [2540 mm]. It also applies to cylindrical forgings with concentric cylindrical bores having wall thicknesses of 2.5 [64 mm] in. or greater, within the same outer diameter limits as for solid cylinders. For solid sections less than 15 in. [380 mm] in diameter and for bored cylinders of less than 7.5 in. [190 mm] wall thickness the transducer used for the inspection will be different than the transducer used for larger sections.  
1.6 Supplementary requirements of an optional nature are provided for use at the option of the...

RTS/TSGC-0329523vh70

RTS/TSGC-0329521vh50

DEN/ERM-TGAERO-31-2

RTS/LI-00190-2

RTS/TSGC-0631130ve21