Latest Standards, Engineering Specifications, Manuals and Technical Publications

This document specifies a method for the measurement of focal spot sizes within the range of 5 µm to 300 µm of X-ray systems up to and including 225 kV tube voltage. This determination is based on the evaluation of an image with a dedicated focal spot that has been radiographically recorded using an edge and evaluated with a digital method.
The imaging quality and the resolution of X-ray images depend highly on the characteristics of the effective focal spot, in particular its size and the two-dimensional intensity distribution as seen from the detector plane.
For the characterization of commercial X-ray tube types (i.e. for advertising or trade), the nominal values of Annex A are preferred.
NOTE            The same procedure can be used at higher kilovoltages by agreement but the accuracy of the measurement can be poorer.

IEC PAS 63621:2025 provides a framework for the data life cycle processes for management of data used to train, test or validate an AI model that is part of a medical device.
For data acquisition and management lifecycle the following considerations apply, amongst others: data suitability, data quality and integrity insurance, data privacy and security, data governance and documentation, data sampling and bias mitigation, data versioning and traceability, data storage and infrastructure, data access and sharing, and data labelling and annotation.
This document outlines the requirements for the data lifecycle, covering stages from planning and acquisition to usage and decommissioning. It emphasizes maintaining data quality, including aspects such as dataset classification, data annotations, traceability, metadata comprehensiveness, representativeness, and validity periods.
The scope is limited to the high-level process concepts applicable across medical specialties and device types and does not include specific requirements that can be covered by modality- or device-specific standards documents.
This document outlines the additional requirements for a quality management system for data management, where an organization demonstrates its capability to manage data in accordance with applicable medical device guidance and standards. Organizations can be involved in one or more stages of the life-cycle, including design and development, production, storage and distribution, installation, or servicing and maintenance of a medical device that incorporates AI. This document can also be used by suppliers or external parties that provide data, including quality management system-related services to such organizations.

This document specifies the procedure for a quantitative determination of major and trace element concentrations in homogeneous solid waste, soil, soil-like material and sludge by energy dispersive X-ray fluorescence (EDXRF) spectrometry or wavelength dispersive X-ray fluorescence (WDXRF) spectrometry using a calibration with matrix-matched standards.
This document is applicable for the following elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Br, Rb, Sr, Y, Zr, Nb, Mo, Ag, Cd, Sn, Sb, Te, I, Cs, Ba, Ta, W, Hg, Tl, Pb, Bi, Th and U. Concentration levels between a mass fraction of approximately 0,000 1 % and 100 % can be determined depending on the element and the instrument used.
An optional XRF screening method for solid and liquid material as waste, sludge and soil is added in Annex A which provides a total element characterization at a semi-quantitative level, where the calibration is based on matrix-independent calibration curves, previously set up by the manufacturer.

This document specifies the requirements for qualification, application, inspection, testing handling and storage of materials for plant application of single-layer fusion-bonded epoxy (FBE) coatings applied externally for the corrosion protection of bare steel pipe for use in pipeline transportation systems for oil and gas industries as defined in ISO 13623.
NOTE            Pipes coated in accordance with this document are considered suitable for additional protection by means of cathodic protection.

This document defines a framework for the extensible registration of information — an approach used to manage an information register.
This framework specifies the following requirements of an information register:
capability requirements that an information register uses to manage register content;
governance requirements that define a set of processes and rules used in the establishment, management, operation, content publication and use of an information register.
The following considerations are out of scope of this document:
implementation details for the realization of an information register;
content and related definitions that are managed within an information register.

This document specifies the requirements for the design, manufacture, identification and testing of battery vehicles and multiple-element gas containers (MEGCs) containing cylinders, tubes, or bundles of cylinders. This document applies also to battery vehicles and MEGCs containing bundles of cylinders connected by a manifold which are dis-assembled from the battery vehicle and filled individually.
It is applicable to battery vehicles and MEGCs containing compressed gas, liquefied gas, and mixtures thereof. It is also applicable to battery vehicles for dissolved acetylene.
This document is not applicable to battery vehicles and MEGC for toxic gases with an LC50 value less than or equal to 200 ml/m3.
This document does not apply to battery vehicles and MEGCs containing pressure drums or tanks.
This document does not specify requirements for the vehicle chassis or motive unit.
This document is primarily intended for industrial gases other than liquefied petroleum gases (LPG).

IEC 61254:2026 applies to men's electric shavers and their trimmers for household use.
This document deals with the methods for evaluating user experience and user satisfaction, in a subjective way, for men's electric shavers and their trimmers with a rated voltage not greater than 250 V.
This document does not specify safety or performance requirements.
This second edition cancels and replaces the first edition published in 1993. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) change in standard title and scope (Title and Clause 1);
b) addition of the definition of user experience and user satisfaction (3.5, 3.6);
c) modification of the list of evaluations (Clause 4);
d) introduction of evaluation of user satisfaction for a particular electric shaver (Clause 6);
e) removal of testing measurement in objective way, such as measuring methods for dimensions, operation time and gravimetric analysis of the difference in closeness of shave;
f) modification of questionnaires in Annex A.

IEC 60050-831:2025 gives the terms and definitions used in smart cities and smart city systems, as well as general terms pertaining to specific applications and associated technologies. This terminology is consistent with the terminology developed in the other specialized parts of the IEV. It has the status of a horizontal standard in accordance with IEC Guide 108.

IEC 63413:2026 provides guidance and establishes requirements for the qualification of I&C platforms, according to IEC nuclear standards, aimed to be used in nuclear applications important to safety. Qualification of an I&C platform (also called pre-qualification or generic qualification) is performed as a generic activity outside the framework of a plant-specific application project. Platform qualification aims to fulfil in an anticipated manner all requirements leading to an I&C platform fully suitable for the implementation of a plant-specific application project.
The platform qualification covers consequently all I&C platform specific aspects including hardware, software, HPD, engineering tools, environmental qualification, quality and the applied safety life cycle supporting these activities. Platform qualification also considers interaction of platform assemblies. This document applies to I&C platforms under development, as well as to pre-existing I&C platforms.
This document provides guidance on what is relevant to I&C platform qualification and what is relevant to the implementation of an I&C system design based on a qualified I&C platform.
The objective of this document is to identify those requirements that relate closely to an I&C platform qualification and aims to support a two-step approach for the licensing of I&C systems based on this I&C platform. If the complete qualification of an I&C system is performed in the framework of a plant-specific application, this document does not apply.

IEC 60862-1:2015 specifies the methods of test and general requirements for SAW filters of assessed quality using either capability approval or qualification approval procedures. This edition includes the following significant technical changes with respect to the previous edition:
- the terms and definitions from IEC 60862-2:2002 are included;
- the measurement method for the balanced type filter is described;
- the electrostatic discharge (ESD) sensitivity test procedure is considered.

IEC TS 60904-1-2:2024 describes procedures for the measurement of the current-voltage (I-V) characteristics of single junction bifacial photovoltaic devices in natural or simulated sunlight. It is applicable to encapsulated solar cells, sub-assemblies of such cells or entire PV modules. For measurements of I-V characteristics of non-encapsulated solar cells, IEC TS 63202-3 applies.
The requirements for measurement of I-V characteristics of standard (monofacial) PV devices are covered by IEC 60904-1, whereas this document describes the additional requirements for the measurement of I-V characteristics of bifacial PV devices.
This second edition cancels and replaces the first edition published in 2019. This edition includes the following significant technical changes with respect to the previous edition:
a) The scope has been updated and refers to IEC TS 63202-3 for the measurement of non‑encapsulated solar cells.
b) The requirements for the non-uniformity of irradiance have been updated and now refer to classifications introduced in IEC 60904-9.
c) The requirement for non-irradiated background has been revised.
d) Spectral mismatch corrections are no longer mandatory, unless required by another standard. Spectral mismatch would have to be considered in the measurement uncertainty.
e) The requirement regarding the calculation of bifaciality has been modified: Equivalent irradiance shall not be calculated based on the minimum bifaciality value between ISC and Pmax, but on the bifaciality of ISC.

IEC 60245-1:2026 applies to rigid and flexible cables with insulation, and sheath if any, based on vulcanized rubber of rated voltages Uo/U up to and including 450/750 V used in power installations of nominal voltage not exceeding 450/750 V AC. Particular types of cables are specified in IEC 60245-3, IEC 60245-4, IEC 60245-6, IEC 60245-7, IEC 60245-8. The code designations of these types of cables are provided in Annex A of this document. The test methods specified in Part 1 to Part 8 of the IEC 60245 series are given in IEC 63294 and in the relevant parts of IEC 60811.
IEC 60245-1:2026 includes the following significant technical changes with respect to the previous edition:
a) reference to IEC 60245-2 for the tests has been deleted and replaced by IEC 63294;
b) reference to lift cable according to IEC 60245-5 has been deleted;
c) normative references have been updated.

This document specifies the operational procedures and best practices when checking transportation racks for LPG cylinders before and during loading and unloading prior to the vehicles going on the road and at any break during the journey.
This document applies to racks containing transportable refillable LPG cylinders of water capacity from 0,5 l up to and including 150 l.
This document applies to the following equipment:
-   rack frame/structure;
-   rack closures;
-   rack fixing equipment or accessories on to the vehicle.
This document applies to checks performed:
-   at cylinder filling plants and depots;
-   or at cylinder manufacturing and/or refurbishment facilities;
-   or at any place where racks are used or moved.
This document also provides guidance and examples for rack maintenance and repair procedures, including rejection criteria and for establishing operational procedures. Transportation racks are also called stillages, pallets or racks (see Clause 3).
This document does not cover the design and the manufacturing of racks.
This document does not apply to presentation display racks at points of sale.

This document specifies the nominal sizes and aim dimensions, with their cutting tolerances, of black-and-white and colour silver halide containing photographic papers in sheets for pictorial use.
It also specifies a method for checking the squareness of the sheets and straightness of their edges and establishes a rule for package marking.
The term "pictorial" means the use in the production of photographic prints and therefore excludes products for graphic arts.
In International Standards, metric units are prime. However, some older inch sizes are included to add historic context.

This document specifies requirements and provides recommendations for the pre-examination process of cell-free DNA (cfDNA) from body fluid specimens other than blood, including but not limited to the collection, handling, storage, transport, processing and documentation of human body fluids, such as urine, pleural effusions, ascites, cerebrospinal fluid (CSF), and saliva, intended for cfDNA examination. Processing includes multiple steps, such as centrifugation for specimen purification and isolation of cfDNA.
This document does not cover dedicated measures for cytohistological analysis of nucleated cells derived from body fluid, nor measures for preserving and handling of pathogens, and other bacterial or whole microbiome DNA in body fluids described.
Dedicated measures for preserving circulating cell-free DNA (ccfDNA) from blood are covered in ISO 20186-3.
This document is applicable to medical laboratories, health institutions including facilities collecting and handling specimens, laboratory customers, in vitro diagnostic examination developers and manufacturers, biobanks, institutions and organizations performing biomedical research, and regulatory authorities.
NOTE            International, national or regional regulations or requirements can also apply to specific topics covered in this document.

This document specifies the requirements and test methods for rigid or semi-rigid non-metallic ductwork which are used for ventilation and air conditioning in buildings and excludes flexible ducts and ductwork made from insulation duct board.
The specified test methods are under laboratory conditions and exclude on-site tests.

IEC 63497:2026, which is a product standard, is intended to specify the EMC, performance and safety requirements of shunt-connected active correction devices (ACD) with rated system voltages not exceeding 1 000 V AC or 1 500 V DC.
These devices can be either cord or permanently connected. They can be movable, stationary, or fixed devices.
An ACD includes both a static VAR generator (SVG) and an active harmonic filter (AHF).
The primary function of a shunt connected ACD is to do one or more of the following:
- active harmonic filtering;
- reactive power compensation;
- unbalanced load compensation.
Additional functions of a shunt-connected ACD, not addressed by this document, can be the following:
- flicker compensation;
- interharmonic component filtering.
In case of hybrid devices, combining a passive harmonic filter and an ACD, this document covers only the active part.
This document does not cover
- active mitigation functions part of another device (variable speed drive, uninterruptible power supply, dynamic voltage restorer, etc.),
- switched power capacitors,
- switched inductors,
- passive harmonic filters,
- energy storage converters, and
- series-connected active correction devices.

This document specifies a method for determining the Charpy impact strength of plastics under defined conditions. It defines a number of different types of specimen and test configurations. It also specifies different test parameters according to the type of material, the type of test specimen and the type of notch. The method described in this document can be used to investigate the behaviour of specified types of specimen under the impact conditions defined and for estimating the brittleness or toughness of specimens within the limitations inherent in the test conditions. It can also be used for the determination of comparative data from similar types of material.

IEC 60704-2-19:2026 applies to stationary freestanding and wall-mounted air cleaners for domestic and similar use, supplied from mains, d.c. voltage not exceeding 48 V or batteries. This document includes combination products, where air cleaning is combined with for example humidification, but can be used only for the air cleaning function. This Part 2-19 is intended to be used in conjunction with IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

This part of IEC 62496 defines the standard interface dimensions for a terminated waveguide optical circuit board (OCB) assembly (referred to simply as assembly) using single-row thirty-two-channel connectors for polymer waveguides connected with a PMT connector, and the PMT connector is intermateable with MPO 16 specified in IEC 61754-7-4.

The standard specifies requirements for appliances for household and similar purposes to prevent the backflow of non-potable water into the water mains. It also specifies requirements for hose sets used for connecting such appliances to the water mains that supply water at a pressure not exceeding 1 MPa.

IEC 63350:2026 specifies generic requirements for creating a digital system that is used for measuring the characteristics of visually detectable performance, such as browning intensity and lightness. It defines the metrological requirements of this digital system and demonstrates the procedures for compliance. The digital system contains the measuring instrument, the software, and the reference materials necessary to realize the measurement process. References to this document can be made by a customer when specifying the digital system and by the suppliers when specifying products offered. Interested parties can agree to use this document as an input for satisfying measurement management system requirements in any activities. This first edition cancels and replaces IEC TS 63350, published in 2022. This edition includes the following significant technical changes with respect to IEC TS 63350: a) Revision of 4.2: movable items (e.g., containers, jigs, reference objects) can now be present in the assessment area provided that mitigation measures are applied and periodic verification against known reference artefacts is documented; the requirement to keep the assessment area as constant as possible is retained. b) Addition of new supporting document: Note in 5.1 introduces the Fogra 52 profile (included in the reference colour supporting documents from the IEC SC 59K supporting documents web site) which is referencing the conditions ISO 12647-7 and ISO 12647-2. c) Four additional reference shades with hue angles > 130° are introduced in 5.3 for calibration (to enable accurate pixel‑wise hue‑angle measurement). These do not create new shade classes. d) Revision of 6.2: Calculation of sampling positions remains unchanged, but the procedure changes to reflect better the actual test scenario. e) Added reporting of input image colour channel data (7.7).

This document specifies a general-purpose document registry framework for transmitting, storing and utilizing documents in clinical and personalized health environments. It is quite broad in its applicability to realise the goal of sharing health-related documents spanning a broad spectrum of health domains such as healthcare specialities covering laboratory, cardiology, eye care, etc. and the many areas of personalized health. This document also supports shared document registration and retrieval via the federation of documents’ registries (IHE Cross-Community Access) in terms of individual users to reduce health information extrusion possibilities. This document supports the sharing of documents of any standardized content in the context of healthcare and well-being. It describes the means of locating and accessing shared documents among a diverse set of health organizations. It is designed to leverage existing health informatics for structuring and semantically rich health information, if so desired. It does not require the development of new health informatics standards.

This document specifies the behaviour of web application programming interfaces (APIs) that provide access to tiles of one or more geospatial data resources (collections) that the web API offers. This document describes how to: discover which resources offered by the web API can be retrieved as tiles; get metadata about the available tile sets (including according to which tile matrix set each tile set is partitioned and the limits of that tile set within a common potentially global tile matrix set); request a tile. The core conformance class is defined in a way that can be easily included in a web API, even if that API does not conform to the OGC API – Common Standard. A web API can combine some requirements classes of this document with those of other OGC API standards (including OGC API – Common) to extend the scope of the web API by adding functionality.

This document specifies requirements for the contents of a technical file to demonstrate the fulfilment of regulatory requirements for an endosseous dental implant that can include: implant body; implant abutment; abutment screw; implant connecting part; implant connecting part screw; prosthetic screw; implant cover screw; transmucosal healing component. This document also specifies requirements for intended use and performance, design attributes, components, biocompatibility, manufacturing, packaging, sterilization, shelf life, marking, labelling and information supplied by the manufacturer. This document does not apply to the following devices: dental implants incorporating animal or human components or bioactive characteristics; custom-made devices that have no pre-fabricated connection; implantable materials for bone filling and augmentation in oral and maxillofacial surgery; membrane materials for guided tissue regeneration in oral and maxillofacial surgery; specific instruments indicated to be used as part of a dental implant system. NOTE 1 ISO 22794 specifies the necessary content of technical files for implantable materials for bone filling and augmentation in oral and maxillofacial surgery. ISO 22803 specifies the necessary content of technical files for membrane materials for guided tissue regeneration in oral and maxillofacial surgery. These materials require a separate technical file. NOTE 2 ISO 13504 gives the general requirements for specific instruments indicated to be used as part of a dental implant system. These instruments require a separate technical file. NOTE 3 Custom-made devices are defined in IMDRF/PMD WG/N49 [5].

This document specifies requirements for and gives guidance on the development, embedding, communication, validation and verification of sustainable finance products and services (SFPS). It addresses the product and service areas of lending, asset management, insurance, payment accounts and digital assets. This document is applicable to any organization that intends to provide or is providing SFPS with an integration of defined environmental, social and governance (ESG) aspects and proof of intended impacts. It can be used for aligning existing SFPS or designing new ones. This document enables organizations to define, embed, communicate, attribute and effectively evaluate SFPS. It further enables successful marketing and documenting of SFPS objectives, properties and impacts, as well as validation and verification.

This document focuses on recommending condition monitoring (CM) techniques for detecting and diagnosing developing machine faults associated with the most common potential failure modes in reciprocating compressors. This document is intended to set out a reliable and effective CM approach for reciprocating compressors, to create a mutual understanding of the criteria for successful reciprocating compressor CM and to foster cooperation between the various application stakeholders, for use by end-users, contractors, consultants, service providers, machine and part manufacturers and instrument suppliers, as the reciprocating compressor design, its operation and maintenance regime can be very different from one application to the next, it is important to highlight that condition monitoring and diagnostics method described in this document is reference guidelines and non-mandatory information, and To make this standard more effective, it is required to actively share the operation and condition data of the reciprocating compressor among the relevant parties. Some of the reciprocating compressor types covered by the requirements of this document include: slow (under 600 r/min) and moderate speed (600 r/min to 1 000 r/min) machines manufactured and procured in accordance with the requirements of API STD 618; high-speed and pre-packaged machines (over 1 000 r/min) on a skid that are manufactured and procured in accordance with the requirements of ISO 13631 or API SPEC 11P; hyper compressors used for secondary ethylene compression in low density polyethylene (LDPE) production; lubricated and non-lubricated machines; water-cooled and gas-cooled machines; horizontal, vertical V-type, L-type and W-type machines; horizontal, vertical machines with piston rings and those with labyrinth seal pistons (vertical machines only); single-acting and double acting machines; machines with a tandem cylinder configuration; single and multi-stage compression machines; machines with and without capacity control; ring, poppet, reed and plate valve type machines; machines mounted on flexible and rigid structures; machines driven by electric motors, gas and diesel engines, turbines (with or without a gearbox) all with a flexible or rigid coupling; tintegral gas-engine-driven machines (engine portion out of scope); offshore applications (e.g. platforms, FPSOs (floating production storage and offloading), FLNGs (floating liquified natural gas), FPU (offshore foating production unit) and fixed installations). This document focuses on the compressor itself (cylinders, distance pieces, crosshead, frame and all internal parts) and not on the prime mover or the external systems (e.g. piping, scrubbers, pulsation vessels, and pulsation control devices). Only brief mention is made of monitoring the foundation, skid and pedestal. The scope does not include requirements for monitoring the auxiliary systems (e.g. for lubrication, cylinder cooling, intercoolers and gas purging), but process parameters from these systems are often monitored. The scope does not cover installation analyses of systems either, (e.g. pulsation and mechanical response and thermal analysis of the piping). This document covers online (permanently installed) and portable instrument CM and diagnostic techniques for operating reciprocating compressors. Machine testing, which is only done during shutdown, although very important, is not part of the scope of this document, nor is the one-time acceptance and performance testing.

This document specifies a framework for interoperability between DLT systems, between DLT and entities outside the DLT system, the relationships and interactions between these and cross-cutting aspects.

This document specifies methods for evaluating the performance of engines designed for motorcycles as defined in ISO 3833, in particular with a view to the presentation of power curves and specific fuel consumption at full load as a function of engine speed, for net power assessment. It is applicable to reciprocating internal combustion engines (spark-ignition or compression-ignition) ‒ excluding free-piston engines ‒ and rotary piston engines, either naturally aspirated or pressure-charged and equipped with either mechanical pressure-charger or turbocharger. Particular specifications for the test of compression-ignition engines are specified in Annex A.

This document provides a common resource that assists with the interoperability of characteristic data between various industrial data standards, such as the ISO 13399 series, the ISO 13584 series, the ISO 15926 series, the ISO 18101 series, the ISO 22745 series, the IEC 61360 series[23] including the IEC Common Data Dictionary[30] and the IEC 62656 series.[25] This document specifies a set of resources that enable organizations to use concept dictionaries as the basis for unambiguous exchange of characteristic data. The following are within the scope of this document: fundamental principles for the exchange of characteristic data and for data dictionaries and ontologies; a conceptual model for basic entities and types; an exchange format for basic entities and types; data elements for identification of objects described by a concept dictionary, where those objects include concepts and their associated concept information elements; syntax of an identifier of objects described by a concept dictionary; rules regarding compatibility of restricted schemas with this document; a conceptual model for dictionaries of concepts and their defining terminological data; an exchange format for terminological data that can be fetched via a concept dictionary resolution service (CDRS); a conceptual model for characteristic data; an exchange format for characteristic data; a specification of a mechanism to resolve a unique concept identifier to its service provider; a specification of an identification scheme and identifier format for retrievable objects in a concept dictionary; a specification of a mechanism to retrieve the terminological data associated with a concept and other objects from the concept dictionary terminology reference model, given the identifier of the concept or object; a specification of a mechanism to search for concepts and other objects from the concept dictionary terminology reference model, using a set of search patterns and parameters; a specification of a mechanism to retrieve the ontological description of a concept, given the identifier of the concept; Web Services Definition Language (WSDL)[33] and Simple Object Access Protocol (SOAP)[34] binding of the specified services; a query for characteristic data of items that have a given supplier identification; a query for supplier identification of items that have a given set of characteristic data; a query for characteristic data and supplier identification of items that match a search expression; a query to supply missing characteristic data. The formats in this document provide interoperability between implementations of the ISO 13584 series and the ISO 22745 series. These formats also have more general applicability. This document serves as a generic resource that can be restricted through implementation profiles by standards that reference it. It can also be implemented without restriction. The following is outside of the scope of this document: rules specific to the ISO 13584 series or the ISO 22745 series.

This document specifies a methodology to assess the suitability of equipment (e.g. machinery, measuring equipment, process equipment, components and tools) for use in cleanrooms and associated controlled environments, with respect to airborne particle cleanliness as specified in ISO 14644-1. Particle sizes range from 0,1 µm to equal to or larger than 5 µm (given in ISO 14644-1).
NOTE            Where regulatory agencies impose supplementary guidelines or restrictions, appropriate adaptation of the assessment methodology can be required.
This document is not applicable to the following items:
assessment of suitability with respect to biocontamination;
testing for suitability of decontamination agents and techniques;
cleanability of equipment and materials;
requirements on design of equipment and selection of materials;
physical properties of materials (e.g. electrostatic, thermal properties);
optimizing performance of equipment for specific process applications;
selection and use of statistical methods for testing;
protocols and requirements for local safety regulations.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 017, type A, crimp, class P, used in elements of connection (relay bases) according to EN 3155 002.
It is used together with EN 3155 001.
The associated male contacts are specified in the standards of relays associated to the relay bases listed in EN 3155 002.

This document specifies requirements and provides recommendations for the design, equipment and operation of interpreting hubs for simultaneous interpreting. This document also ensures the usability and accessibility of interpreting hubs for all interpreters.
This document builds upon ISO 20109 and ISO 24019, which both contain requirements and recommendations regarding the equipment necessary for simultaneous interpreting.

This document specifies the required characteristics, tests and tooling applicable to electrical contacts, male 044, type A, double crimping, class T, used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated female contacts are specified in EN 3155 045.

This document gives guidelines for cleaning to a specified degree on cleanroom surfaces, surfaces of equipment in a cleanroom and surfaces of materials in a cleanroom. Under consideration are all surfaces (external or internal) that are of interest. It provides guidance on the assessment of cleaning methods for achieving the required surface cleanliness by particle concentration (SCP) and surface cleanliness by chemical concentration (SCC) levels and which techniques should be considered to achieve these specified levels.
The appropriateness of cleaning techniques will make reference to the cleanliness levels and associated test methods found in ISO 14644-9 and ISO 14644-10.
The document gives general guidance on the following:
expected surface cleanliness levels;
suitability of cleaning methods;
compatibility of surfaces with the cleaning technique;
assessment of cleaning appropriateness.
The following are excluded from this document:
classification of cleaning methods;
product produced within a cleanroom;
specific surface-related cleaning methods;
detailed description of cleaning mechanisms, methods and procedures of various cleaning methods;
detailed material characteristics;
description of damage mechanisms by cleaning processes and time-dependent effects;
references to interactive bonding forces between contaminants and surfaces or generation processes that are usually time-dependent and process-dependent;
other characteristics of particles such as electrostatic charge, ionic charges, etc.;
chemical reactions between molecular contaminants and surfaces;
microbiological aspects of surface cleanliness;
radioactive aspects of contamination;
health and safety considerations;
environmental aspects such as waste disposal, emissions, etc.;
selection and use of statistical methods.

This document specifies the characteristics of silver-plated Bolts normal Hexagon Head with relieved shank and long thread, in heat resisting steel FE-PA92HT (A286), tensile strength class 1 100 MPa at room temperature. The maximum test temperature of the material is 650 °C.

This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A.
NOTE 1        Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753.
NOTE 2        The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load shown by a specific marking (property class preceded by a zero). The loadability in the head is assumed to be 80 % of that in the thread for all sizes and all property classes; see Table 5.
NOTE 3        Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 071, type A, crimp, class S used in elements of connection according to EN 3155 002.
It is intended to be used together with EN 3155 001.
The associated male contacts are specified in EN 3155 008 and EN 3155 070.

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 045, type A, double crimping, class T, used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-044.
Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two locations, one on the conductor and the other on the jacket. This way it protects the conductor from mechanical strengths.

IEC 63372:2026 describes principles and methodologies, specifies requirements and provides guidance for quantification and communication of carbon footprint a product (CFP), emission reductions and avoided emissions from electric and electronic (EE) products and systems. This document is also applicable to product-related GHG projects. The GHG quantification such as CFP is based on life cycle assessment (LCA) methods. This document is a basic environment horizontal publication focusing on essential requirements and is primarily intended for use by committees in the preparation of publications within the area of environment in accordance with the principles laid down in IEC Guide 123. Wherever applicable, it is the responsibility of committees to make use of environment basic publications in the preparation of their environment group and product publications. Committees can apply this document directly to products when they do not develop a product publication in the area of environment. This first edition of IEC 63372 cancels and replaces IEC TR 62725:2013 and IEC TR 62726:2014, which have been technically revised. This edition includes the following significant technical changes with respect to the previous edition: a) updating and enhancing content related to carbon footprint of a product to align with new or updated reference standards; b) including product and system in quantification of GHG emission reductions; c) adding the content related to avoided emissions including use cases in Annex D.

IEC 63138-4:2025, which is a Sectional Specification (SS), provides information and rules for the preparation of Detail Specifications (DS) for type L32-4 and L32-5 circular connectors with four RF channels and five RF channels, as well as a detailed specification of the blank format. The L32-4 and L32-5 circular connectors with 50 Ω nominal impedance has four RF channels and five RF channels which can be engaged and disengaged at the same time. They are characterized by threaded coupling mechanisms, anti-misinsertion mechanism, and the operating frequency of each channel is up to 4 GHz. These connectors have been widely used in mobile communication system like TD-SCDMA and TD-LTE and can also be used in some similar equipment. This document also specifies mating face dimensions for general connectors (grade 2), gauging information and tests selected from IEC 63138-1, applicable to all Detail Specifications relating to type L32 4 and L32-5 circular connectors. This document cancels and replaces IEC 61169-59:2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 61169-59:2017: a) use of IEC 63138-1:2019 as its generic specification instead of using IEC 61169-1:2013; b) all the subclauses and test methods are in line with IEC 63138-1:2019; c) dimension "g" in Table 3, Table 4, Table 7 and Table 8 has been changed from "0,00 min. to 0,8 max." to "1,6 min. to 2,1 max.".

IEC 62541-14:2026 defines the PubSub communication model. It defines an OPC UA publish subscribe pattern which complements the client server pattern defined by the Services in IEC 62541-4. See IEC 62541-1 for an overview of the two models and their distinct uses. PubSub allows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems. This document consists of • a general introduction of the PubSub concepts, • a definition of the PubSub configuration parameters, • mapping of PubSub concepts and configuration parameters to messages and transport protocols, • and a PubSub configuration model. This second edition cancels and replaces the first edition published in 2020. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Addition of a “Quantity Model” which can be referenced from EngineeringUnit Properties. The model defines quantities and assigned units. In addition it provides alternative units and the conversion to them. b) Addion of rules for ValuePrecision Property: • can also be used for other subtypes like Duration and Decimal. • rules have been added when ValuePrecision has negative values.

This document specifies the requirements, performance criteria and testing procedures for control and indicating equipment (CIE) intended for use in intrusion and hold-up alarm systems (I&HAS) installed in buildings. This document also applies to CIE to be used in IAS or HAS. The CIE can incorporate processing functions of other I&HAS components or its processing requirements can be distributed among such components. This document specifies the requirements for CIE installed in buildings using specific or non-specific wired interconnections or wire-free interconnections. These requirements also apply to basic DCC which can be installed outside of the supervised premises and mounted in indoor or outdoor environments. Where CIE shares means of detection, interconnection, control, communication, processing and/or power supplies with other applications, these requirements apply to I&HAS functions only. This document specifies performance requirements for CIE at each of the four security grades identified in EN 50131-1. Requirements are also specified for four environmental classes covering applications for indoor and outdoor locations. This document includes mandatory functions for all CIE for the appropriate security grade, as well as optional functions that can additionally be provided. This document does not cover requirements for compliance with EU regulatory Directives, such as the EMC Directive, Low Voltage Directive, etc. except in that it specifies the equipment operating conditions for EMC susceptibility testing as required by EN 50130-4. NOTE 1 In this document reference to the term "I&HAS" is used throughout, except where there is specific need to differentiate between the IAS and HAS portions of a system. The term is intended to include IAS and HAS when such systems are installed separately. NOTE 2 For products which integrate functions from, and which the manufacturer is claiming compliance to, several EN 50131 standards, the requirements of this document apply as well as any additional requirements from other relevant EN 50131 standards (e.g. a CIE with integral Warning Device is expected to meet the requirements of EN 50131-3 and EN 50131-4).

RTBR/SMG-0019R1

DEN/ERM-TGAERO-31-1

DEN/ERM-TG28-561

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

REN/MSG-TFES-15-3

ABSTRACT
This specification covers emulsified asphalt suitable for use as a protective coating for built-up roofs and other exposed surfaces with specified inclines. The emulsified asphalts are grouped into three types, as follows: Type I, which contains fillers or fibers including asbestos; Type II, which contains fillers or fibers other than asbestos; and Type III, which do not contain any form of fibrous reinforcement. These types are further subdivided into two classes, as follows: Class 1, which is prepared with mineral colloid emulsifying agents; and Class 2, which is prepared with chemical emulsifying agents. Other than consistency and homogeneity of the final products, they shall also conform to specified physical property requirements such as weight, residue by evaporation, ash content of residue, water content flammability, firm set, flexibility, resistance to water, and behavior during heat and direct flame tests.
SCOPE
1.1 This specification covers emulsified asphalt suitable for use as a protective coating for built-up roofs and other exposed surfaces with inclines of not less than 4 % or 42 mm/m [1/2 in./ft].  
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 the testing and requirements for two types and two classes of asbestos-free asphalt roof cement consisting of an asphalt base, volatile petroleum solvents, and mineral and/or other stabilizers, mixed to a smooth, uniform consistency suitable for trowel application to roofing and flashing. Type I is made from asphalts characterized as self-healing, adhesive, and ductile, while Type II is made from asphalt characterized by high softening point and relatively low ductility. Class I is used for application to essentially dry surfaces, while Class II is used for application to damp, wet, or underwater surfaces. The roof cements shall comply with composition limits for water, nonvolatile matter, mineral and/or other stabilizers, and bitumen (asphalt). They shall also meet physical requirements such as uniformity, workability, and pliability and behavior at given temperatures.
SCOPE
1.1 This specification covers asbestos-free asphalt roof cement suitable for trowel application to roofings and flashings.  
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
5.1 Motor O.N. correlates with commercial automotive spark-ignition engine antiknock performance under severe conditions of operation.  
5.2 Motor O.N. is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines.  
5.2.1 Empirical correlations that permit calculation of automotive antiknock performance are based on the general equation:
Values of k1, k2, and k3 vary with vehicles and vehicle populations and are based on road-octane number determinations.  
5.2.2 Motor O.N., in conjunction with Research O.N., defines the antiknock index of automotive spark-ignition engine fuels, in accordance with Specification D4814. The antiknock index of a fuel approximates the road octane ratings for many vehicles, is posted on retail dispensing pumps in the United States, and is referred to in vehicle manuals.
This is more commonly presented as:
5.3 Motor O.N. is used for measuring the antiknock performance of spark-ignition engine fuels that contain oxygenates.  
5.4 Motor O.N. is important in relation to the specifications for spark-ignition engine fuels used in stationary and other nonautomotive engine applications.  
5.5 Motor O.N. is utilized to determine, by correlation equation, the Aviation method O.N. or performance number (lean-mixture aviation rating) of aviation spark-ignition engine fuel.7
SCOPE
1.1 This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Motor octane number, including fuels that contain up to 25 % v/v of ethanol. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.2 The sample fuel is tested in a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions. The octane number scale is defined by the volumetric composition of primary reference fuel blends. The sample fuel knock intensity is compared to that of one or more primary reference fuel blends. The octane number of the primary reference fuel blend that matches the knock intensity of the sample fuel establishes the Motor octane number.  
1.2 The octane number scale covers the range from 0 to 120 octane number, but this test method has a working range from 40 to 120 octane number. Typical commercial fuels produced for automotive spark-ignition engines rate in the 80 to 90 Motor octane number range. Typical commercial fuels produced for aviation spark-ignition engines rate in the 98 to 102 Motor octane number range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Motor octane number range.  
1.3 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pounds units. The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment.  
1.4 For purposes of determining conformance with all specified limits in this standard, an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specified limit, in accordance with the rounding method of Practice E29.  
1.5 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. For more specific hazard statements, see Section 8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3(6) and (9), A2.3.5, X3.3.7, X4.2.3.1, X4.3.4.1, X4.3.9.3, X4.3.12.4, and X4.5.1.8. ...

ABSTRACT
This specification establishes the manufacture, testing, and performance requirements of two types of asphalt-based emulsions for use in a relatively thick film as a protective coating for metal surfaces. Type I are quick-setting emulsified asphalt suitable for continuous exposure to water within a few days after application and drying. Type II, on the other hand, are emulsified asphalt suitable for continuous exposure to the weather, only after application and drying. Upon being sampled appropriately, the materials shall conform to composition requirements as to density, residue by evaporation, nonvolatile matter soluble in trichloroethylene, and ash and water content. They shall also adhere to performance requirements as to uniformity, consistency, stability, wet flow, firm set, heat test, flexibility, resistance to water, and loss of adhesion.
SCOPE
1.1 This specification covers emulsified asphalt suitable for application in a relatively thick film as a protective coating for metal 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 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 The kinematic viscosity characterizes flow behavior. The method is used to determine the consistency of liquid asphalt as one element in establishing the uniformity of shipments or sources of supply. The specifications are usually at temperatures of 60 and 135 °C.
Note 3: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.
SCOPE
1.1 This test method covers procedures for the determination of kinematic viscosity of liquid asphalts, road oils, and distillation residues of liquid asphalts all at 60 °C [140 °F] and of liquid asphalt binders at 135 °C [275 °F] (see table notes, 11.1) in the range from 6 to 100 000 mm2/s [cSt].  
1.2 Results of this test method can be used to calculate viscosity when the density of the test material at the test temperature is known or can be determined. See Annex A1 for the method of calculation.  
Note 1: This test method is suitable for use at other temperatures and at lower kinematic viscosities, but the precision is based on determinations on liquid asphalts and road oils at 60 °C [140 °F] and on asphalt binders at 135 °C [275 °F] only in the viscosity range from 30 to 6000 mm2/s [cSt].
Note 2: Modified asphalt binders or asphalt binders that have been conditioned or recovered are typically non-Newtonian under the conditions of this test. The viscosity determined from this method is under the assumption that asphalt binders behave as Newtonian fluids under the conditions of this test. When the flow is non-Newtonian in a capillary tube, the shear rate determined by this method may be invalid. The presence of non-Newtonian behavior for the test conditions can be verified by measuring the viscosity with viscometers having different-sized capillary tubes. The defined precision limits in 11.1 may not be applicable to non-Newtonian asphalt binders.  
1.3 Warning—Mercury has been designated by the United States Environmental Protection Agency (EPA) and many state agencies as a hazardous material that can cause central nervous system, kidney, and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury-containing products. See the applicable product Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) for details and the EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury, mercury-containing products, or both, in your state may be prohibited by state law.  
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 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.  
1.6 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 ...

SIGNIFICANCE AND USE
3.1 These tests are useful in sampling and testing solvent bearing bituminous compounds to establish uniformity of shipments.
SCOPE
1.1 These test methods cover procedures for sampling and testing solvent bearing bituminous compounds for use in roofing and waterproofing.  
1.2 The test methods appear in the following order:    
Section  
Sampling  
4  
Uniformity  
5  
Weight per gallon  
6  
Nonvolatile content  
7  
Solubility  
8  
Ash content  
9  
Water content  
10  
Consistency  
11  
Behavior at 60 °C [140 °F]  
12  
Pliability at –0 °C [32 °F]  
13  
Aluminum content  
14  
Reflectance of aluminum roof coatings  
15  
Strength of laps of rolled roofing adhered with roof adhesive  
16  
Adhesion to damp, wet, or underwater surfaces  
17  
Mineral stabilizers and bitumen  
18  
Mineral matter  
19  
Volatile organic content  
20  
1.3 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.  
1.4 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.  
1.5 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.

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.

SIGNIFICANCE AND USE
5.1 The honeycomb tensile-node bond strength is a fundamental property than can be used in determining whether honeycomb cores can be handled during cutting, machining and forming without the nodes breaking. The tensile-node bond strength is the tensile stress that causes failure of the honeycomb by rupture of the bond between the nodes. It is usually a peeling-type failure.  
5.2 This test method provides a standard method of obtaining tensile-node bond strength data for quality control, acceptance specification testing, and research and development.
SCOPE
1.1 This test method covers the determination of the tensile-node bond strength of honeycomb core materials.  
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.  
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.

RTS/TSGC-0329523vh70

RTS/TSGC-0329521vh50

DEN/ERM-TGAERO-31-2

RTS/LI-00190-2

RTS/TSGC-0631130vf22