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边界组成是否应仅包括对物质危害特征有影响的杂质？
问题（中文）
边界组成是否应仅包括对物质危害特征有影响的杂质？
Question (EN)
Should the boundary composition include only impurities that have an impact on the hazard profile of the substance?
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）
边界成分报告的详细程度与物质是否危险无关。但是，报告应根据构建危险数据集时所考虑的因素进行定制，包括在杂质层面进行的相关考虑，以得出物质的分类和/或PBT评估。
Answer (EN)
The level of detail reported for the boundary composition is not dependent on whether the substance is hazardous or not. However, it should be customised around the considerations used to construct the hazard dataset, including also the relevant considerations made at the impurity level to derive the classification and/or PBT assessment of the substance.