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See Chinese contents: GB/T 41412-2022 GB/T 41412-2022: Determination of isothiazolinone preservatives in toys -- High performance liquid chromatography-tandem mass spectrometry
This Standard specifies high performance liquid chromatography-tandem mass spectrometry for determination of isothiazolinone preservatives in toys. This Standard applies to determination of 2-methyl-4-isothiazolin-3-one (MIT), 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and 1,2-benzisothiazoline- 3-ketone (BIT) in toys. Other preservatives can be determined with reference to this document after verification.
