如果某种物质不符合《危险物质指令》规定的分类标准，那么它是否也不符合 CLP 规定的分类？

如果某种物质不符合《危险物质指令》规定的分类标准，那么它是否也不符合 CLP 规定的分类？

If a substance did not meet the classification criteria under the Dangerous Substances Directive, is it therefore also not classified under CLP?

一种物质即使不属于 DSD 范畴，也可能被归类为 CLP 范畴。对于一系列危害，分类标准已经发生了变化，例如，对于许多物理危害，确定分类标准的测试方法通常与 DSD 的不同。对于其他危害，考虑到物质中所含成分、添加剂和杂质的分类，适用的浓度限值已经发生变化，例如，对于刺激性和腐蚀性危害。这意味着，如果没有关于物质整体的可靠测试信息，并且无法应用桥接原则，则使用浓度限值的计算规则可能会导致根据 CLP 进行分类，即使同一种物质未根据 DSD 进行分类。

A substance may be classified under CLP, even though it was not under the DSD. For a range of hazards, the classification criteria have changed, e.g. for many physical hazards where the test methods which determine the classification criteria are often different from those of the DSD. For other hazards, the applicable concentration limits for taking into account the classification of its constituents, additives and impurities contained in the substance have changed, e.g. for the irritation and corrosive hazards. This means that where there is no reliable test information on the substance as a whole and the bridging principles cannot be applied, use of the calculation rules using concentration limits may lead to a classification under CLP, even though the same substance was not classified under DSD.