1.1本指南将帮助生产、购买或销售物质、制剂和物品的公司确保供应链符合欧盟标准 ’ s《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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 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。 第6节概述了供应链中上游和下游方向上要交换的信息。图4提供了描绘上游和下游方向上的数据流的示意图。表1-5列出了要包含在该交换中的元素列表，其中捕获了信息交换所需的数据字段。附录A1附录A3中的案例研究1-3提供了三个示例场景，其中客户和供应商完成这五个表格以交换数据，以解决其REACH合规性问题。

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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 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. Section 6 outlines the information that is to be exchanged in the supply chain both in the upstream and downstream directions. Fig. 4 provides a schematic depicting data flow in the upstream and downstream directions. A list of the elements to be included in this exchange is represented in Tables 1-5 that capture the necessary data fields for information exchange. Case studies 1-3 in Annex A1-Annex A3 provide three sample scenarios wherein a customer and supplier complete these five tables to exchange data to address their REACH compliance issues.