Latest Standards, Engineering Specifications, Manuals and Technical Publications

This document specifies requirements for dosing systems for chlorine dioxide generation according to the chlorite-chlorine gas process, the chlorite-acid process and the chlorite-sodium peroxodisulphate process, which are used for the disinfection and oxidation of substances in water.
The chlorine dioxide (ClO2) solution is produced on site (in situ) by automated mixing of chemical precursors.
NOTE   According to EN 12671, chlorine dioxide is suited for the use of the treatment of water intended for human consumption (drinking water).

This document gives recommendations for the selection, use, care and maintenance of hearing protectors.

This document specifies the test method for assessing the propensity of textile floor coverings to soiling in the absence of abrasive wear and texture changes using a standard artificial soil composition.
This document applies to the testing of unused textile floor coverings of all types.
This document can also be extended to assess the effects of fibre finishes, cleaning chemicals and cleaning equipment (see Annex A).

The present document specifies technical characteristics and methods of measurements for the following equipment used in ground-based ATC Surveillance for civil air navigation:
• Wide Area Multilateration (WAM) systems with Mode S capabilities which may include Mode A/C, transmitting at 1 030 MHz and at 1 090 MHz, and receiving at 1 090 MHz, used for air traffic control with or without 1 090 MHz phase overlay.
Antennas for this equipment are passive.
Remote Field Monitors (RFM) as described in ETSI EN 303 363-2 [i.6] as well as Vehicle transmitters as described in ETSI EN 303 213-5-2 [i.7] are not covered in the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in Annex A.

IEC 63584-210:2025 is the OCPP version 2.1. Version 2.1 is an extension of OCPP 2.0.1. OCPP 2.1 has its own JSON schemas, but the schemas are OCPP 2.0.1 schemas that have been extended with optional fields that are used by OCPP 2.1 functionality. With the minor exceptions mentioned below, all application logic developed for OCPP 2.0.1 will continue to work in OCPP 2.1 without any changes. The new features of OCPP 2.1, of course, require new application logic.

This document specifies methods for determining the density (dry density or fully impregnated density), oil content (related to test piece volume and related to open porosity) and open porosity of permeable sintered metal materials.
This document applies in particular to porous metal bearings and to structural parts produced by pressing and sintering metal powders.

This document defines terms related to the functions, products, and properties in geosynthetics, and terms used in International Standards on geosynthetics.

IEC 61300-3-14:2025 provides a method to measure the error and repeatability of the attenuation value settings of a variable optical attenuator (VOA). There are two control technologies for VOAs: manually controlled and electrically controlled. This document covers both VOA control technologies and also both single-mode fibres and multimode fibres VOAs. For electrically controlled VOAs, the hysteresis characteristics of attenuation are sometimes important. The hysteresis characteristics can be measured as stated in Annex B. This fourth edition cancels and replaces the third edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of IEC 61315, Calibration of fibre-optic power meters as normative reference; b) addition of Clause 3 containing terms, definitions and abbreviated terms; c) addition of notes for permission of repeatability definition with 2σ; d) correction of error in Figure 1 a) and Figure 1 b); e) addition of a clear statement on EF launch condition requirement for MM source; f) change of “Detector” to “Power meter”; g) combination of Clause 7 and Clause 8 into a new Clause 8 titled “Details to be specified and reported”; h) addition of uncertainty considerations in Clause 7; i) correction of error in Formula (B.3).

IEC 62541-4:2025 is available as IEC 62541-4:2025 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62541-4:2025 defines the OPC Unified Architecture (OPC UA) Services. The Services defined are the collection of abstract Remote Procedure Calls (RPC) that are implemented by OPC UA Servers and called by OPC UA Clients. All interactions between OPC UA Clients and Servers occur via these Services. The defined Services are considered abstract because no particular RPC mechanism for implementation is defined in this document. IEC 62541‑6 specifies one or more concrete mappings supported for implementation. For example, one mapping in IEC 62541‑6 is to UA-TCP UA-SC UA-Binary. In that case the Services described in this document appear as OPC UA Binary encoded payload, secured with OPC UA Secure Conversation and transported via OPC UA TCP. Not all OPC UA Servers implement all of the defined Services. IEC 62541‑7 defines the Profiles that dictate which Services must be implemented in order to be compliant with a particular Profile. A BNF (Backus-Naur form) for browse path names is described in Annex A. This fourth edition cancels and replaces the third 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 new definitions to Method Call Service to allow optional Method arguments; b)addition of reference to SystemStatusChangeEventType for event monitored item error scenarios; c) enhancement of the general description of how determining if a Certificate is trusted; d) addition of support for ECC; e) addition of revisedAggregateConfiguration to AggregateFilterResult structure; f) addition of INVALID to the BrowseDirection enumeration data type; g) addition of INVALID to the TimestampsToReturn enumeration data type; h) addition of definitions that make sure the subscription functionality works if retransmission queues are optional; i) addition of client checks has been added to be symmetric to the Server Certificate check has been added; j) clarification that ‘local’ top level domain is not appended by server into certificate and not checked by client when returned from LDS-ME; k) addition of a definition for expiration behaviour of IssuedIdentityTokens; l) addition of status code Good_PasswordChangeRequired to ActivateSession; m) restriction of AdditionalInfo to servers in debug mode; n) addition of new status code Bad_ServerTooBusy; o) addition of definition for cases where server certificate must be contained in GetEndpoints response.

This document specifies the quality and safety requirements of Gentiana scabra, Gentiana manshurica, and Gentiana triflora root and rhizome. This document applies to Gentiana scabra, Gentiana manshurica, and Gentiana triflora root and rhizome that is sold and used as natural medicines in international trade, including in Chinese materia medica, in its whole medicinal material, and in decoction pieces derived from these plants.

This document specifies a cone procedure for determining an uncompacted bulk density of crushed coal up to −45 mm nominal top size, as it is handled in industrial practices. It focuses on the uncompacted bulk density of coal resulting from flowing the material into a measuring container (box) in the absence of compacting forces. The determination of the bulk density of coal charged into coke ovens is a typical example. This document also provides a method for determining the bulk density of dry powdered coal at −63 micrometres for boiler or utility application. It does not cover the determination of bulk density of coal in storage piles.

This document provides criteria for judgement of usability of child restraint systems (CRS) with regard to the securing of a child in the child seat and other daily handling aspects. This document provides criteria for judgement of: ease of availability of instructions; clarity of instruction manual and labelling; and the ease of use of design related features of the CRS related to securing the child or child dummy in a CRS installed in vehicle. This document can be used in conjunction with either ISO 29061-1 or ISO 29061-3 for making a complete usability evaluation of CRSs attached to the vehicle with ISOFIX/LATCH or vehicle seat belts. NOTE 1 CRS includes enhanced child restraint systems (ECRS) according to UN Regulation No. 129. NOTE 2 Booster system usability evaluation, including securing of a child in the booster system, is covered by ISO 29061-5.

This document describes a procedure for the determination of statistics for estimating the capability or performance of processes, particularly when the of process does not remain in statistical control. The process results of these quality characteristics are categorized into eight possible distribution types. The statistical methods described in this document only apply to continuous quality characteristics. They are applicable to processes in any industrial or economical sector. NOTE This method is usually applied in case of a great number of serial process results, but it can also be used for small series (a small number of process results).

This document specifies methods of measurement for the determination of the dimensions of all types of mattresses, bed frames, divans and bed bases intended for adult size. It also includes recommended tolerances based on any nominal dimension, in order to ensure the correct fit between the bed components. This document does not apply to the following: — air beds/mattresses and water beds/mattresses; — mattress pads that are placed on top of the main support mattress; — dimensions of bed bases for bunk beds and high beds.

This document provides criteria for judgement of usability of booster seat child restraint systems (CRSs) when installing them and securing a child. This document provides criteria for judgement of: ease of availability of instructions; clarity of instruction manual and labelling; and ease of use of design related features of the CRS related to the installation in a vehicle. The procedure can also be used for evaluation of vehicle integrated booster systems. NOTE 1 CRS includes enhanced child restraint systems (ECRS) according to UN Regulation No. 129. NOTE 2 Although ISOFIX is defined in the original “ISOFIX” standard (ISO 13216-1) to be a rigid system, the term “ISOFIX” in this document is extended to include flexible CRS attachments (e.g. LATCH in USA, UAS in Canada).

IEC 62083:2025, with the inclusion of type tests and site tests, applies to the design, manufacture, installation, and maintenance of the radiotherapy treatment planning system. This document applies to the communication of the radiotherapy treatment planning system with other devices – used in medical practice, – that imports data either through input by the operator or from other devices, – that outputs data to other devices, and – that is intended to be - for normal use, under the authority of appropriately qualified persons, by operators having the required skills and training, - used and maintained in accordance with the recommendations given in the instructions for use, and – used within the environmental conditions specified in the technical description. This document applies to any software application that is used for the development, evaluation, or approval of a treatment plan, whether stand-alone or part of another system. IEC 62083:2025 cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – modification of the title from Medical electrical system - Requirements for the safety of radiotherapy treatment planning systems, to Medical device software - Requirements for the safety of radiotherapy treatment planning systems; – Adaptive radiotherapy is added with Clause 16; – The title reflects different implementations of radiotherapy treatment planning systems.

This document specifies dimensions required for the installation and integration of the high pressure fuel pump in gasoline (GDI) engines. The location of the fuel connections and the dimensions of the pump outside shape are not defined since they vary according to the manufacturer of the pump and to the particular application.

IEC 61267:2025 applies to test procedures which, for the determination of characteristics of systems or components of medical diagnostic X-ray equipment, require well-defined X-ray radiation conditions. This document deals with methods for generating X-ray radiation conditions which can be used under test conditions typically found in test laboratories or in manufacturing facilities for the determination of characteristics of medical diagnostic X-ray equipment. IEC 61267:2025 cancels and replaces the second edition published 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) removing former Annex C “Measurement of the practical peak voltage”; b) inserting informative “Tabulated values for the squared signal-to-noise ratio per air kerma (SNR2in)” and normative “Additional X-ray radiation conditions as used in mammography and determination of the corresponding nominal aluminium half-value layers”; c) revision of X-ray radiation conditions; d) new method for verification of X-ray radiation conditions; e) change of term definitions.

IEC 62541-1:2025 presents the concepts and overview of the OPC Unified Architecture (OPC UA). Reading this document is helpful to understand the remaining parts of the IEC 62541 series. Each of the other parts is briefly explained along with a suggested reading order. This first edition cancels and replaces IEC TR 62541-1 published in 2020

IEC 62541-13:2025 is available as IEC 62541-13:2025 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62541-13:2025 defines the information model associated with Aggregates. Programmatically produced aggregate examples are listed in Annex A. This third edition cancels and replaces the second edition published in 2020. This edition constitutes a technical revision. This edition includes the following technical changes with respect to the previous edition: a) Multiple fixes for the computation of aggregates • The Raw status bit is always set for non-bad StatusCodes for the Start and End aggregates. • Entries in the Interpolative examples Tables A2.2 Historian1, Historian2, and Historian3 have been changed from Good to Good, Raw status codes when the timestamp matches with the timestamp of the data source. • Missing tables have been added for DurationInStateZero and DurationInStateNonZero. • The value of zero has been removed for results with a StatusCode of bad. • Data Type was listed as "Status Code" when it is "Double" for both Standard Deviation and both Variance Aggregates. • Rounding Error in TimeAverage and TimeAverage2 have been corrected. • The status codes have been corrected for the last two intervals and the value has been corrected in the last interval. • The wording has been changed to be more consistent with the certification testing tool. • UsedSlopedExtrapolation set to true for Historian2 and all examples locations needed new values or status' are modified. • Values affected by percent good and percent bad have been updated. • PercentGood/PercentBad are now accounted for in the calculation. • TimeAverage uses SlopedInterpolation but the Time aggregate is incorrectly allowed to used Stepped Interpolation. • Partial bit is now correctly calculated. • Unclear sentence was removed. • Examples have been moved to a CSV. • The value and status code for Historian 3 have been updated. • TimeAverage2 Historian1 now takes uncertain regions into account when calculating StatusCodes. • TimeAverage2 Historian2 now takes uncertain regions into account when calculating StatusCodes. • Total2 Historian1 now takes uncertain regions into account when calculating StatusCodes • Total2 Historian2 now takes uncertain regions into account when calculating StatusCodes • Maximum2 Historian1 now takes uncertain regions into account when calculating StatusCodes • MaximumActualTime2 Historian1 now takes uncertain regions into account when calculating StatusCodes • Minimum2 Historian1 now takes uncertain regions into account when calculating StatusCodes • MinimumActualTime2 Historian1 now has the StatusCodes calculated while using the TreatUncertainAsBad flag. • Range2 Historian1 now looks at TreatUncertainAsBad in the calculation of the StatusCodes. • Clarifications have been made to the text defining how PercentGood/PercentBad are used. The table values and StatusCodes of the TimeAverage2 and Total2 aggregates have been corrected.

This document specifies the delivery conditions for longitudinally welded pipes of circular cross-section, made of high-manganese austenitic steel, intended for cryogenic temperature applications under pressure. This document is applicable to all pressure-retaining components and any non-pressure-retaining components, such as members of pipe supports, which are welded directly to a pressure-retaining component.

This document specifies the design and installation of alternating current (AC) and direct current (DC) electrical systems used for the purpose of electrical propulsion and/or the electrical part of a hybrid propulsion system (system with both a rechargeable battery and a fuelled power source). This document is applicable to electrical propulsion systems operated in the following ranges either individually or in combination: direct current of less than 1 500 V DC; single-phase alternating current up to AC 1 000 V; three-phase alternating current up to AC 1 000 V. This document is applicable to electrical propulsion systems installed in small craft up to 24 m length of the hull (LH in accordance with ISO 8666).

The present document specifies technical requirements, limits and test methods for UWB devices installed in motor and railway vehicles in the frequency range 6,0 GHz to 8,5 GHz, used for UWB radiodetermination applications. The present document covers only monostatic radar equipment. Further details of the covered UWB radiodetermination equipment installed in motor and railway vehicles and the related EUT categories can be found in clause 4.2 of the present document.
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.

This document provides general procedures for the selection of methods, preparation of samples, and the conduct of testing for the uptake and release of preservatives from contact lenses.
Preservative uptake and release testing is not intended as a routine test of production contact lenses or contact lens care products nor are testing results meant to establish finished goods specifications in any way.
Such testing is carried out when developing new contact lens materials and/or contact lens care products.
NOTE 1        Due to the manifest difficulties of reproducibility when coating contact lenses with mineral and organic deposits encountered during lens wear, these methods are only applicable to new and unused contact lenses.
NOTE 2        Preservative depletion by a contact lens in the limited volume of a lens case could compromise disinfection performance. This document does not measure disinfection performance.

IEC 62541-10:2025 is available as IEC 62541-10:2025 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62541-10:2025 defines the Information Model associated with Programs in OPC Unified Architecture (OPC UA). This includes the description of the NodeClasses, standard Properties, Methods and Events and associated behaviour and information for Programs. The complete AddressSpace model including all NodeClasses and Attributes is specified in IEC 62541-3. The Services such as those used to invoke the Methods used to manage Programs are specified in IEC 62541-4. An example for a DomainDownload Program is defined in Annex A. This fourth edition cancels and replaces the third edition published in 2020. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - StateMachine table format has been aligned.

This document specifies minimum requirements for high-manganese austenitic steel forgings for valves, flanges, fittings and other pressure-containing components used at cryogenic temperature. The specification of high-manganese austenitic steel forgings can be applicable to all pressure retaining components and any non-pressure retaining component.

IEC 62541-100:2025 defines the information model associated with Devices. This document describes three models which build upon each other as follows: • The (base) Device Model is intended to provide a unified view of devices and their hardware and software parts irrespective of the underlying device protocols. • The Device Communication Model adds Network and Connection information elements so that communication topologies can be created. • The Device Integration Host Model finally adds additional elements and rules required for host systems to manage integration for a complete system. It enables reflecting the topology of the automation system with the devices as well as the connecting communication networks. This document also defines AddIns that can be used for the models in this document but also for models in other information models. They are: • Locking model – a generic AddIn to control concurrent access, • Software update model – an AddIn to manage software in a Device. This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a a ComponentType that can be used to model any HW or SW element of a device has been defined and a SoftwareType has been added as subtype of ComponentType; b the new OPC UA interface concept and defined interfaces for Nameplate, DeviceHealth, and SupportInfo has been added. c) a new model for Software Update (Firmware Update) has been added; d) a new entry point for documents where each document is represented by a FileType instance has been specified; e) a model that provides information about the lifetime, related limits and semantic of the lifetime of things like tools, material or machines has been added.

IEC 62541-17:2025 provides a definition of AliasNames functionality. AliasNames provide a manner of configuring and exposing an alternate well-defined name for any Node in the system. This is analogous to the way domain names are used as an alias to IP addresses in IP networks. Like a DNS Server, an OPC UA Server that supports AliasNames provides a lookup Method that will translate an AliasName to a NodeId of the related Node on a Server. An aggregating Server can collect these AliasNames from multiple Servers and provide a lookup Method to allow Client applications to discover NodeIds on a system wide basis. An aggregating Server could also define AliasNames for Nodes in other Servers that do not support AliasNames. A GDS can be constructed that would automatically aggregate all AliasNames that are defined on any Server that has registered with the GDS. In this case, the GDS also provides the lookup mechanism for Clients at a well-known endpoint and address.

This document specifies a test method for the determination of snagging resistance of a fabric using a mace (spiked ball).
This test method is applicable to knitted and to woven fabrics.

IEC TS 61851-27:2026, in combination with IEC 61851-1 or IEC 61851-23, gives the requirements for EV supply equipment with automatic docking and undocking functions (aEVSE) of a vehicle coupler according to IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1 for power transfer with electrically propelled road vehicles according to ISO TS 5474-5.
Use of aEVSE with the megawatt charging system is under consideration.
This document provides requirements for aEVSE with a single vehicle connector.
Requirements for aEVSE with more than one vehicle connector are under consideration.
This document only applies to aEVSE with automatic couplers of category 1: using vehicle couplers defined by IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1.
This document only specifies automatic conductive energy transfer using a vehicle connector and a vehicle inlet; it does not specify automatic conductive power transfer using a plug and a socket-outlet.
This document does not apply to aEVSE with automatic couplers of category 2: using an electro-mechanical interface defined by EN 50696.
This document does not apply to aEVSE with automatic coupler of category 3 (see IEC TS 61851-26).
EMC requirements for EV supply equipment are defined in IEC 61851-21-2.
Interoperable communication for docking and undocking between an aEVSE and an EV, extending the communication between an EV supply equipment and an EV as specified in IEC 61851-1, IEC 61851-23, IEC 61851-24 and the ISO 15118 series, is under consideration.
This document does not cover all safety aspects related to maintenance

IEC TS 61851-26:2026, in combination with IEC 61851-1 or IEC 61851-23, gives the requirements for EV supply equipment with automatic docking and undocking functions (aEVSE) at the underbody of electrically propelled road vehicles according to ISO TS 5474-5.
Use of aEVSE with the megawatt charging system is under consideration.
This document provides requirements for aEVSE with a single vehicle connector or a single socket-outlet.
Requirements for aEVSE with more than one vehicle connector or more than one socket-outlet are under consideration.
This document only applies to automatic couplers of category 3, located at the underbody of an electric vehicle.
This document does not apply to automatic coupler of category 1: using a vehicle coupler defined by IEC 62196-2, IEC 62196-3 or IEC TS 62196-3-1.
This document does not apply to automatic couplers of category 2: using an electro-mechanical interface defined by EN 50696. EN 50696 also specifies automatic couplers located at the underbody of an electric vehicle. However, these couplers only provide DC power transfer.
Interoperable communication for docking and undocking between an aEVSE and an EV, extending the communication between an EV supply equipment and an EV as specified in IEC 61851-1, IEC 61851-23, IEC 61851-24 and the ISO 15118 series, is under consideration.
This document does not cover all safety aspects related to maintenance.

IEC 63378-6:2026 specifies a thermal resistance and capacitance model for semiconductor packages. This model is named the digital transformation using thermal resistance and capacitance (DXRC) model. It predicts transient temperature at junction and measurement points.
This document applies to semiconductor packages such as TO-252, TO-263, and HSOP. It supports single chip packages dissipated heat from single package surface.

This document specifies a method for the determination of the content of heavy extraneous materials (HEM) larger than 3,15 mm by the use of sink-and-float separation combined with elutriation. This document is applicable to woody biomass in accordance with ISO 17225-1, and especially for hogfuel in accordance with ISO 17225-9.
NOTE 1        This method is designed to determine the level of impurities larger than 3,15 mm with a specific density >1 g/cm3, such as stones, glass, rubber, metal and certain types of plastics.
NOTE 2        During the processing of the sample, hand sorting of light impurities with a specific density ≤1 g/cm3 (e.g. plastic foil) can also be done.
NOTE 3        Some heavy extraneous materials (e.g. lumps of clay) can fall apart when submerged in water.
NOTE 4        Heavy extraneous materials smaller than 3,15 mm can damage milling equipment, when reducing the material in size to produce laboratory samples.

This document specifies a method of measuring the case hardening depth, surface hardening depth, nitriding hardness depth and total thickness of surface hardening depth obtained using, e.g. thermal (flame and induction hardening, electron beam hardening, laser beam hardening, etc.) or thermochemical (carbonitriding, carburizing and hardening, hardening and nitriding, etc.) treatment.

This document specifies a specific method for determining the Vicat softening temperature (VST) of thermoplastics pipes and fittings. It includes the adaption of method B 50 of ISO 306:2022 using a force of 50 N and a heating rate of 50 °C/h and the procedure for specimen preparation.
It includes the particular test conditions for determining the Vicat softening temperature (VST) of unplasticized poly(vinylchloride) (PVC-U) or chlorinated poly(vinylchloride) (PVC-C) pipes and fittings, for high impact resistance poly(vinylchloride) (PVC-HI) pipes and for acrylonitrile/butadiene/styrene (ABS) and acrylonitrile/styrene/acrylic ester (ASA) pipes and fittings.
This document can also be used for pipes and fittings from other materials (e.g. PE-UHMW).

ISO 9073-11 describes test methods for measuring the quantity of test liquid (simulated urine) which runs down a nonwoven test piece when a specified mass of test liquid is poured on to the nonwoven test piece superimposed on a standard absorbent media and placed on an inclined plane.
This test method is designed to compare run-off of nonwovens. It is not intended to simulate in-use conditions of finished products.
Three alternative methods are described:
Test I -- the basic method for testing hydrophilic nonwovens;
Test III -- the repeated test, with the same test parameters as in I);
Test III -- the modified method for testing hydrophobic nonwovens specifying another table inclination than in I).

IEC 60743:2013 applies to the terminology used to describe tools, devices, equipment and methods used in live working. It standardizes the name of tools, devices and equipment and permits their identification by providing definitions and illustrations. It contains some example illustrations. This third edition cancels and replaces the second edition, published in 2001, and its Amendment 1:2008.This edition constitutes a technical revision which includes the following significant technical changes with respect to the previous edition: the clause 2 has been simplified and refers directly to IEC 60050-651; some definitions have been moved to specific existing clauses. This new edition is complementary to IEC 60050-651. Different publications under the responsibility of TC 78 include terms and its definitions. IEC 60050-651 (IEV 651) provides precise, brief and correct definitions of internationally accepted concepts in the field of live working, and specifies the terms by which these defined concepts are known. Electropedia gives access to the terms and definitions of IEC 60050-651 (http://www.electropedia.org/). Each product standard gives definitions necessary for the understanding of certain terms used in a specific context. The IEC Glossary (http://std.iec.ch/glossary) gives on-line access to the information.

IEC 63494-1:2026 specifies the safety requirements for electro-mechanical interfaces connecting lighting system devices to luminaires. These interfaces are used to mechanically connect, electrically power, and enable communication of lighting system devices on luminaires. Electro-mechanical interfaces up to and including 1 000 V AC or 1 500 V DC are included. This document specifies safety related mechanical, electrical, ambient conditions, and construction requirements for the interface components including protective covers. Specific requirements for the devices that can utilize the interface such as sensors, communication modules, cameras, etc., are not within the scope of this document.

IEC 61290-1-2:2026 applies to all commercially available optical amplifiers (OAs) and optically amplified sub-systems. It applies to OAs using optically pumped fibres (OFAs based on either rare-earth doped fibres or on the Raman effect), semiconductors (SOAs), and planar optical waveguides (POWAs). This document does not apply to polarization-maintaining optical amplifiers. This document defines uniform requirements for accurate and reliable measurements, by means of the electrical spectrum analyzer test method, of the following OA parameters, as defined in IEC 61291-1, Clause 3:
a) nominal output signal power;
b) gain;
c) reverse gain;
d) maximum gain;
e) polarization-dependent gain.
In addition, this test method provides a means for measuring the following parameters:
- maximum gain wavelength;
- gain wavelength band.
This document specifically covers single-channel amplifiers. For multichannel amplifiers, the IEC 61290-10 series applies.
NOTE 1 The applicability of the test methods described in this document to distributed Raman amplifiers is for further study.
NOTE 2 A test method for polarization-maintaining optical amplifiers is for further study.
This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of information on the applicability of this document to the scope;
b) harmonization of the scope with the IEC 61290-1 series;
c) addition of safety recommendations to Clause 4 and Clause 5;
d) correction of an error in Clause 7, item e);
e) replacement of the term "wavelength measurement accuracy" with "wavelength accuracy".

This document provides guidelines for the use of hydrogen in its gaseous and liquid forms as well as its storage in either of these or other forms (hydrides). This document identifies the basic safety concerns, hazards and risks, and describes the properties of hydrogen that are relevant to safety. Detailed safety requirements associated with specific hydrogen applications are treated in separate International Standards.
“Hydrogen” in this document means protium (the most common isotope of hydrogen) (1H), not deuterium (2H) or tritium (3H).

This document specifies a method of measuring smoke production from the exposed surface of specimens of materials or composites. It is applicable to specimens that have an essentially flat surface and do not exceed 25 mm in thickness when placed in a horizontal orientation and subjected to specified levels of thermal irradiance in a closed cabinet with or without the application of a pilot flame. This method of test is applicable to all plastics.
It is intended that the values of optical density determined by this test be taken as specific to the specimen or assembly material in the form and thickness tested and are not to be considered inherent, fundamental properties.
The test is intended primarily for use in research and development and fire safety engineering in buildings, trains, ships, etc. and not as a basis for ratings for building codes or other purposes. No basis is provided for predicting the density of smoke that can be generated by the materials upon exposure to heat and flame under other (actual) exposure conditions. This test procedure excludes the effect of irritants on the eye.
NOTE            This test procedure addresses the loss of visibility due to smoke density, which generally is not related to irritancy potency (see Annex E).
It is emphasized that smoke production from a material varies according to the irradiance level to which the specimen is exposed. The results yielded from the method specified in this document are based on exposure to the specific irradiance levels of 25 kW/m2 and 50 kW/m2.

1.1   General
This document establishes the minimum requirements for the qualification and certification of personnel performing nondestructive testing (NDT), nondestructive inspection (NDI), or nondestructive evaluation (NDE) in the aerospace manufacturing, service, maintenance and overhaul industries. For the purposes of this document, the term NDT will be used and will be considered equivalent to NDI and NDE.
In Europe, the term "approval" is used to denote a written statement by an employer that an individual has met specific requirements and has operating approval. The term "certification" as defined in 3.3 is used throughout this document as a substitute for the term "approval". Except when otherwise specified in the written practice, certification in accordance with this document includes operating approval.
1.2   Purpose
1.2.1   Applicability
This document applies to personnel who:
-   use NDT methods or equipment to test and/or accept materials, products, components, assemblies or sub-assemblies;
-   are directly responsible for the technical adequacy of the NDT methods and equipment used;
-   operate automatic interpretation or evaluation systems;
-   approve NDT procedures or work instructions;
-   audit NDT facilities; or
-   provide technical NDT support or training.
This document does not apply to individuals who only have administrative or supervisory authority over NDT personnel or to research personnel developing NDT technology for subsequent implementation and approval by a certified Level 3. See Clause 8 regarding applicability to personnel performing specialized inspections using certain direct readout instruments.
1.2.2   Implementation
This document addresses the use of a National Aerospace NDT Board (NANDTB). NANDTBs are only used as specified per Annex C and it is not mandatory to have such a board for compliance with this document. Personnel certified to previous revisions of NAS410/EN 4179 need not recertify to the requirements of this document until their current certification expires.
1.2.3   NDT methods
This document contains detailed requirements for the following NDT methods:
eddy current testing   (ET)
penetrant testing   (PT)
magnetic particle testing   (MT)
radiographic testing   (RT)
shearography testing   (ST)
thermographic testing   (IRT)
ultrasonic testing   (UT)
When invoked by engineering, quality, cognizant engineering organization or prime contractor requirements, this document applies to other NDT methods used to determine the acceptability or suitability for intended service of a material, part, component, sub-assembly or assembly. Such methods can include, but are not limited to, acoustic emission, neutron radiography, leak testing, and holography.

This document specifies the execution, validation, verification and documentation of a numerical welding simulation within the field of computational welding mechanics (CWM) and performed with a scientific computational tool (SCT).
This document is applicable to the thermal and mechanical finite element analysis (FEA) of arc, laser and electron beam welding processes for the purpose of calculating the effects of welding processes, and in particular, residual stresses and distortion, in support of structural integrity assessment.

IEC 63601:2026 covers SiC-based PECS devices having a gate dielectric region biased to turn devices on and off. This typically refers to MOS devices such as MOSFETs and IGBTs. In this document, only NMOS (N-type MOS) devices are discussed as these are dominant for power device applications; however, the procedures apply to PMOS (P-type MOS) devices as well.
This document does not define device failure criteria, acceptable use conditions or acceptable lifetime targets. That is up to the device manufacturers and users. However, it provides stress procedures such that the threshold voltage stability over time as affected by gate bias and temperature can be demonstrated and evaluated.

IEC TS 62885-1:2026 specifies the physical characteristics of test equipment and material used in tests common to several products covered by IEC 62285 series for surface cleaning appliances. In addition, it provides guidance regarding the evaluation of Wilton and other types of carpets to determine their acceptability for testing and regarding the pre-treatment of test dust.
This fourth edition cancels and replaces the third 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) Almost all of the test equipment is adopted from IEC 62885-2:2021.
b) Test equipment and materials for wet cleaning is included.
c) A description of the verification of an in-house reference vacuum cleaner is added.
d) Information about the reference vacuum cleaner system RSB is added.

IEC TS 60825-13:2026 provides manufacturers, test houses, safety personnel, and others with practical guidance on methods to perform radiometric measurements or analyses to establish the emission level of laser energy or power in accordance with IEC 60825-1:2014. The measurement procedures described in this document are guidance for classification of laser products in accordance with IEC 60825‑1:2014. It is possible that other procedures are better or more appropriate.
Information is provided for calculating accessible emission limits (AELs) and maximum permissible exposures (MPEs), since some parameters used in calculating the limits are dependent upon other measured quantities.
This document applies to lasers, including extended sources and laser arrays. The procedures described in this document for extended source viewing conditions can yield more conservative results than when using more rigorous methods.
NOTE Work continues on more complex source evaluations and will be provided as international agreement on the methods is reached.
This first edition cancels and replaces the second edition of IEC TR 60825-13 published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC TR 60825-13:2011:
a) minor changes and additions have been made in the definitions;
b) classification flow has been updated;
c) apparent source sections have been clarified;
d) scanning has been updated;
e) more examples and useful conversions have been added to the annexes.

This document specifies a mould (designated the type F ISO mould) for the injection moulding of plates with a preferred size of 80 mm × 120 mm, and a preferred thickness of 2 mm for single-point and multi-point data acquisition. Suitable test specimens according to ISO 20753 type A22 or B3 are then machined or stamped from the plates and used to obtain information on the anisotropy. For the design of plastic parts, this will provide upper and lower bounds for the tensile properties.
Investigation of the anisotropy of materials is a special procedure intended to provide guidance in the design of mouldings for end-use applications and is not intended as a quality control tool.
In the injection moulding of thermoplastic materials, the flow of molten polymer can influence the orientation of fillers such as fibreglass or the orientation of polymer chains, resulting in anisotropic behaviour.
For the purposes of this document, the flow direction is defined as the direction from the gate to the far end of the mould cavity and the cross direction as the direction perpendicular to the flow direction.
The type F mould is not intended to replace the type D mould used to determine the moulding shrinkage of thermoplastics.

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 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 unreinforced vulcanized rubber sheets made from ethylene propylene diene terpolymer (EPDM) or butyl (IIR), intended for use in preventing water under hydrostatic pressure from entering a structure. The tests and property limits used to characterize these sheets are specific for each classification and are minimum values to make the product fit for its intended purpose. Types used to identify the principal polymer component of the sheet include: type I - ethylene propylene diene terpolymer, and type II - butyl. The sheet shall be formulated from the appropriate polymers and other compounding ingredients. The thickness, tensile strength, elongation, tensile set, tear resistance, brittleness temperature, and linear dimensional change shall be tested to meet the requirements prescribed. The water absorption, factory seam strength, water vapour permeance, hardness durometer, resistance to soil burial, resistance to heat aging, and resistance to puncture shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers unreinforced vulcanized rubber sheets made from ethylene propylene diene terpolymer (EPDM) or butyl (IIR), intended for use in preventing water under hydrostatic pressure from entering a structure.  
1.2 The tests and property limits used to characterize these sheets are specific for each classification and are minimum values to make the product fit for its intended purpose.  
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 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 Coefficients of linear thermal expansion are used, for example, for design purposes and to determine if failure by thermal stress may occur when a solid body composed of two different materials is subjected to temperature variations.  
5.2 This test method is comparable to Test Method D3386 for testing electrical insulation materials, but it covers a more general group of solid materials and it defines test conditions more specifically. This test method uses a smaller specimen and substantially different apparatus than Test Methods E228 and D696.  
5.3 This test method may be used in research, specification acceptance, regulatory compliance, and quality assurance.
SCOPE
1.1 This test method determines the technical coefficient of linear thermal expansion of solid materials using thermomechanical analysis techniques.  
1.2 This test method is applicable to solid materials that exhibit sufficient rigidity over the test temperature range such that the sensing probe does not produce indentation of the specimen.  
1.3 The recommended lower limit of coefficient of linear thermal expansion measured with this test method is 5 μm/(m·°C). The test method may be used at lower (or negative) expansion levels with decreased accuracy and precision (see Section 12).  
1.4 This test method is applicable to the temperature range from −120 °C to 900 °C. The temperature range may be extended depending upon the instrumentation and calibration materials used.  
1.5 SI units are the standard. No other units of measurement are included in this 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 to use.  
1.7 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.

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 austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts. The steel shall be made by the electric furnace process with or without separate refining such as argon-oxygen decarburization. All castings shall receive heat treatment followed by quench in water or rapid cool by other means as noted. The steel shall conform to both chemical composition and tensile property requirements.
SCOPE
1.1 This specification2 covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1).  
Note 1: Carbon steel castings for pressure-containing parts are covered by Specification A216/A216M, low-alloy steel castings by Specification A217/A217M, and duplex stainless steel castings by Specification A995/A995M.  
1.2 A number of grades of austenitic steel castings are included in this specification. Since these grades possess varying degrees of suitability for service at high temperatures or in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and high-temperature or corrosion-resistant characteristics, or both.  
1.2.1 Because of thermal instability, Grades CE20N, CF3A, CF3MA, and CF8A are not recommended for service at temperatures above 800 °F [425 °C].  
1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The Supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.  
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.  
1.4.1 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M-specification designation (SI units), the inch-pound units shall apply. Within the text, the SI units are shown in brackets or parentheses.  
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.

ABSTRACT
This specification covers coal tar roof cement suitable for trowel application in coal tar roofing and flashing systems. The chemical composition of coal tar roof cement shall conform to the requirements prescribed. The water, non-volatile matter, insoluble matter, behaviour at 60 deg. C, adhesion to wet surfaces, and flash point shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers coal tar roof cement suitable for trowel application in coal tar roofing and flashing systems.  
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 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 the physical requirements and testing of three types of lap cement for use with asphalt roll roofing. Type I is a brushing consistency lap cement intended for use in the exposed-nailing method of roll roofing application, and contains no mineral or other stabilizers. This type is further divided into two grades, as follows: Grade 1, which is made with an air-blown asphalt; and Grade 2, which is made with a vacuum-reduced or steam-refined asphalt. Both Types II and III, on the other hand, are heavy brushing or light troweling consistency lap cement intended for use in the concealed-nailing method of roll roofing application, only that Type II cement contains a quantity of short-fibered asbestos, while Type III cement contains a quantity of mineral or other stabilizers, or both, but contains no asbestos. The lap cements shall be sampled for testing, and shall adhere to specified values of the following properties: water content; distillation (total distillate at given temperatures); softening point of residue; solubility in trichloroethylene; and strength at indicated age.
SCOPE
1.1 This specification covers lap cement consisting of asphalt dissolved in a volatile petroleum solvent with or without mineral or other stabilizers, or both, for use with roll roofing. The fibered version of these cements excludes the use of asbestos fibers.  
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 applies only to the test method portion, Section 6, 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.

RTS/TSGC-0329521vh50

RTS/TSGC-0329523vh70

DEN/ERM-TGAERO-31-2

RTS/LI-00190-2

RTS/TSGR-0534229-1ve80

RTS/TSGR-0537571-4ve50