当下游用户的使用或使用条件不在供应商注册范围内且未包含在 eSDS 中时，下游用户的义务是什么？

当下游用户的使用或使用条件不在供应商注册范围内且未包含在 eSDS 中时，下游用户的义务是什么？

What are the obligations of a downstream user when their use or their conditions of use are not covered by the supplier’s registration and are not included in the eSDS?

如果下游用户使用该物质（无论是其本身还是混合物）的条件与供应商在扩展安全数据表 (eSDS) 中未告知的条件不符，或者 eSDS 中完全未涵盖该用途，则他们可以选择以下选项之一：要求您的供应商在其化学品安全报告中纳入您的用途或使用条件，并提供相应的暴露场景。您需要向供应商提供足够的信息，以便他们开展化学品安全评估 (CSA)。您的行业组织可能已经开发出一种便捷的方式，专门为您的行业提供此类信息。实施您收到的暴露场景中描述的使用条件。此选项可能需要您调整流程以满足 eSDS 中描述的条件。用更安全的替代品替代您的物质。寻找其他能够提供该物质安全数据表和涵盖您用途的暴露场景的供应商。除非适用豁免，否则请自行开展化学品安全评估，并根据您的用途和使用条件编制下游用户化学品安全报告 (DU CSR)——详情请参阅我们的实用指南《如何编制下游用户化学品安全报告》。向 ECHA 通报您的用途，包括 REACH 法规第 38(2) 条规定的信息。如果下游用户持有的信息对从供应商处收到的危害或风险管理信息构成质疑，则他们应将此类信息上游传达给供应商。有关更多信息，我们建议查阅下游用户指南：第 4 节“下游用户和暴露场景”概述了如何确定您的用途是否在暴露场景的范围内。第 5 节“未涵盖的用途：编制下游用户化学品安全报告 (DU CSR)”介绍了如何编制下游用户化学品安全报告。下游用户责任部分和实用指南“下游用户如何处理暴露场景”（第 2.2.2 节“如果暴露场景未涵盖用途和/或使用条件该怎么办”）中也提供了更多信息。

If a downstream user uses the substance (as such or in a mixture) under conditions that are not communicated by the supplier in the extended safety data sheet (eSDS), or the use is not covered at all in the eSDS, they may choose one of the following options: Ask your supplier to include your use or conditions of use in their chemical safety report and to provide you with an exposure scenario for it. You need to make sufficient information available to your supplier to enable them to carry out your Chemical Safety Assessment (CSA). Your sector organisation may have developed a convenient means of supplying this information specifically to your sector. Implement the conditions of use described in the exposure scenario you have received. This option may require an adaptation of your processes to meet the conditions described in the eSDS. Substitute your substance with a safer alternative. Find another supplier who can provide the substance with a safety data sheet and an exposure scenario covering your use. Carry out your own chemical safety assessment and prepare your own downstream user chemical safety report (DU CSR) for your uses and conditions of use, unless exemptions apply – see our practical guide How to prepare a downstream user chemical safety report for details. Notify your use, including the information specified in Article 38(2) of the REACH Regulation to ECHA. If a downstream user holds information that puts into question the hazard or risk management information received from the supplier, they should communicate such information upstream to the supplier. For further information, we advise to consult the Guidance for downstream users: An overview of how to decide whether or not your use is covered by the exposure scenario can be found in Section 4 Downstream users and exposure scenarios Information on how to make a downstream user chemical safety report is given in Section 5 Use not covered: preparing a downstream user chemical safety report (DU CSR) More information is also available in the Downstream user responsibilities section and the practical guide How downstream users can handle exposure scenarios (section 2.2.2 What to do if the use and/or conditions of use are not covered by the exposure scenario).