GB/T 47192-2026Thermoplastic elastomers - Determination of volatile organic compounds - Thermal desorption gas chromatography with mass spectrometric detection (English PDF)

1 Scope

This document describes the determination of volatile organic compounds in thermoplastic elastomers and their products using thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS).

Methods for determining the content of organic compounds.

This document applies to the determination of volatile organic compounds in thermoplastic elastomers and their products.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 15340 Sampling and Sample Preparation Methods for Natural and Synthetic Raw Rubber

GB/T 17783-2019 Preparation of chemical test samples and specimens for vulcanized or thermoplastic rubber

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Principles

The thermoplastic elastomer sample is heated to a specified temperature and held for a period of time in a desorption tube, and volatile organic compounds are carried by the carrier gas flow.

Cold traps trap and concentrate volatile organic compounds. The cold trap is rapidly heated using a specific heating method, and the compounds are introduced into a container equipped with non-polar or...

Separation was performed using a weakly polar capillary column, detection was performed using mass spectrometry, and quantification was performed using the external standard method.

5 Reagents or materials