IEC 62474:2018+A1:2020规定了与电工行业运营和供应公司产品的材料声明相关的程序、内容和表格。产品使用过程中的工艺化学品和排放不在本国际标准的范围内。它向下游制造商提供以下数据: -允许他们根据物质限制合规要求评估产品； -它们可用于其环保设计过程和所有产品生命周期阶段。与本文档相关的数据库可在http://std.iec.ch/iec62474上获得。它包含以下列表: -可申报物质组和可申报物质； -参比物质； -材料类别； -用于数据格式和交换的XML模式以及随附的开发人员表。IEC 62474:2018取消并取代了2012年发布的第一版。本版构成技术修订版。 IEC 62474:2018相对于上一版本包括以下重大技术变更: a)材料类别和豁免清单能力得到提高。 b)引言和范围有新的图表和信息，以更好地概述标准并确定哪些信息是强制性的、可选的或有条件强制性的。 c)增加了定义。定义了符合IEC 62474标准的最低要求，包括XML格式作为官方接受的格式。通过定义权限、列表标识和列表版本，标准格式可以用于IEC 62474数据库以外的列表。 d)为了在整个文件中保持一致，对术语进行了调整。例如，“IEC 62474数据库”以前被称为“IEC 62474数据库”、“IEC 62474”、“IEC 62474数据库”、“IEC 62474 DB”。 e）已删除附件，因为它们现在包含在验证小组62474（VT 62474）管理的文件中。 f)定义了符合性声明和成分声明两种类型的材料声明及其要求。附录A（上版附录B）仅供非XML用户参考。 该合并版本由第二版（2018年）及其修正案1（2020年）组成。因此，除本出版物外，无需下令修订。

IEC 62474:2018+A1:2020 specifies the procedure, content, and form relating to material declarations for products of companies operating in and supplying the electrotechnical industry. Process chemicals and emissions during product use are not in the scope of this International Standard. It provides data to downstream manufacturers that:
- allows them to assess products against substance restriction compliance requirements;
- they can use in their environmentally conscious design process and across all product life cycle phases. A database associated with this document is available at http://std.iec.ch/iec62474. It contains the list of:
- Declarable substance groups and declarable substances;
- Reference Substances;
- Material classes;
- XML schema for data format and exchange and the accompanying developer table.
IEC 62474:2018 cancels and replaces the first edition published in 2012. This edition constitutes a technical revision.
IEC 62474:2018 includes the following significant technical changes with respect to the previous edition:
a) The material classes and exemption lists capabilities have been improved.
b) The introduction and scope have new diagrams and information to give a better overview of the standard and identify what information is mandatory, optional or conditionally mandatory.
c) Definitions have been added. Minimum requirements to be in conformance with the IEC 62474 standard are defined, including XML format as the officially accepted format. By defining an authority, list identity and list version, the standard format could be used for lists other than the IEC 62474 database.
d) Terms have been aligned for consistency throughout the document. For example, the “IEC 62474 database” was previously referred to as “IEC 62474 database”, “IEC 62474”, “IEC 62474 Database”, “IEC 62474 DB”.
e) The annexes have been removed as they are now contained within documents managed by the validation team 62474 (VT 62474).
f) Two types of material declarations, declaration for compliance and composition declaration, and their requirements are defined.Annex A (Annex B in the previous edition) is provided for non-XML users as a reference only.
This consolidated version consists of the second edition (2018) and its amendment 1 (2020). Therefore, no need to order amendment in addition to this publication.