1.1 本指南将帮助生产、购买或销售物质、制剂和物品的公司，或同时生产、购买或销售物质、制剂和物品的公司，以确保供应链符合欧盟《化学品注册、评估和授权（REACH）条例》。这是通过确定在供应链参与者之间的通信中必须指定、请求和交换的特定信息元素来实现的。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本指南建议REACH确定的物质、制剂和物品的全球供应链信息交换的做法和解决方案。 REACH指导标准的前五个附件作为REACH行业指导的中央存储库，跨越行业部门，促进复杂全球供应链之间的协作。附件6-9提供了欧盟关于供应链中信息交换的关键指南。 5.2 部分 6. 概述了供应链中上游和下游方向上要交换的信息。

1.1 This guide will assist companies that manufacture, buy, or sell, or both, substances, preparations, and articles to ensure that supply chains comply with the European Union’s Registration, Evaluation, and Authorization of Chemicals (REACH) regulation. This is accomplished by identifying the specific information elements that must be specified, requested and exchanged in communication between actors in the supply chain. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 guide recommends practices and solutions for global supply chain information exchange for substances, preparations, and articles as identified by REACH. The first five annexes of REACH guidance standards serve as a central repository for REACH industry guidance that spans industry sectors and facilitates collaboration across complex global supply chains. Annexes 6-9 provide key EU guidance on information exchange in the supply chain. 5.2 Section 6 outlines the information that is to be exchanged in the supply chain both in the upstream and downstream directions.