GB/T 44835-2024 Textiles - Determination of chlorinated organic solvents
WARNING - Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document describes a method for the determination of 18 kinds of chlorinated organic solvents in textiles by gas chromatography-mass spectrometry (GC-MS).
This document is applicable to various textiles.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
chlorinated organic solvents
alkane or alkene in which the carbon element is combined with one or more chlorine atoms
Note: The chlorinated organic solvents referred to in this document are often used as industrial solvents.
4 Principle
The samples are subjected to ultrasonic extraction by n-tetradecane, measured by GC-MS, and quantified by the internal standard method.
