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See Chinese contents: GB/T 41524-2022 GB/T 41524-2022: Determination of short chain chlorinated paraffins in toy materials - Gas chromatography-mass spectrometry
This Document specifies a qualitative and quantitative method for the determination of short-chain chlorinated paraffins in toy materials by gas chromatography-electron capture negative chemical ion source-mass spectrometry. This Document applies to the determination of short-chain chlorinated paraffins with a chlorine atomic number greater than or equal to 5 in toy polymer materials.
