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如何在 IUCLID 中指定未知杂质？
问题（中文）
如何在 IUCLID 中指定未知杂质？
Question (EN)
How do I specify unknown impurities in IUCLID?
中文内容由 Google Cloud Translation 自动生成，仅供参考；请以英文原文为准。问答资料来自欧盟化学品管理局（ECHA）官方网站。
答案（中文）
如果您的物质含有无法识别的杂质，则需要在 IUCLID 中为其创建通用参考物质。在参考物质中，您需要注明以下内容：在 IUPAC 名称栏中填写“未知杂质”；参考物质“未知杂质”的典型浓度和浓度范围；在“备注”栏中尽可能填写每种未知杂质的性质、数量和相对浓度范围。请注意，与分类和/或 PBT 评估相关的杂质，无论浓度如何，都应始终注明。有关如何报告物质未知杂质的技术说明，请参阅《注册和 PPORD 档案准备手册》第 8.3.2 节。
Answer (EN)
When your substance contains impurities that you are unable to identify, you need to create a generic reference substance for them in IUCLID. In the reference substance, you need to state the following:"unknown impurities" in the IUPAC name field; typical concentration and concentration range of the reference substance ‘unknown impurities’;nature, number and the relative concentration range of each unknown impurity (as far as possible) in the ‘Remarks’ field.Please note that impurities that are relevant for the classification and/or for PBT assessment shall always be specified, irrespective of the concentration.For technical instructions on how to report unknown impurities of a substance, see section 8.3.2 of the Manual on how to prepare registration and PPORD dossiers.