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This document specifies two methods for the measurement of the hydroxyl number of polyols used as polyurethane raw materials. The hydroxyl content of polyols are determined to properly formulate polyurethane systems. Method A is primarily applicable to readily esterified polyether polyols. It is also intended for polyols which have significant steric hindrance, such as those based on sugars.…

IEC 60228:2023 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60228:2023 edition 4.0 and the previous IEC 60228:2004 edition 3.0. Furthermore, comments from IEC TC 20 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content…

IEC 62056-6-1:2023 is available as IEC 62056-6-1:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62056-6-1:2023 specifies the overall structure of the OBject Identification System (OBIS) and the mapping of all commonly used data items in metering equipment to their identification codes.…

IEC 60567:2023 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60567:2023 edition 5.0 and the previous IEC 60567:2011 edition 4.0. Furthermore, comments from IEC TC 10 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content…

This document provides business rules for PH EPR information systems. It includes a description of the EPR information systems domain. It also includes an informative framework for mapping existing semantic interoperability standards for emergency preparedness and response to PH EPR information systems. The primary target audience for this document is policy makers (governmental or organizational…

This document specifies box-based container format, referred to as JPEG XT, which is designed primarily for continuous-tone photographic content.

IEC 60335-2-98:2023 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with the comprehensive content of the Standard. IEC 60335-2-98:2023 EXV includes the content of the references made to IEC 60335-1:2020. IEC 60335-2-98:2023 deals with the safety of electric…

IEC 60335-2-109:2023 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with the comprehensive content of the Standard. IEC 60335-2-109:2023 EXV includes the content of the references made to IEC 60335-1:2020. IEC 60335-2-109:2023 deals with the safety of UV radiation…

IEC 60335-2-109:2023 is available as IEC 60335-2-109:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60335-2-109:2023 deals with the safety of UV radiation water treatment appliances for household and similar use, their rated voltage being not more than 250 V for single-phase appliances…

IEC 60335-2-122:2023 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with the comprehensive content of the Standard. IEC 60335-2-122:2023 EXV includes the content of the references made to IEC 60335-1:2020. IEC 60335-2-122:2023 deals with the safety of electrically…