GB/T 37861-2019Determination of halogen in electrical and electronic products—Ion chromatography method (English PDF)

1 Scope

This standard specifies the ion chromatographic method for the determination of halogen content in electrical and electronic products.

This standard applies to the determination of fluorine (F), chlorine (Cl), bromine (Br) in polymer materials for electrical and electronic products.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 6682 Analytical laboratory water specifications and test methods

GB/T 26125-2011 Six restricted substances for electrical and electronic products (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers)

Determination

SJ/T 11692-2017 Electronic and Electrical Products Restricted Substance Testing Sample Split Guide

3 Terms and definitions

The following terms and definitions apply to this document.

4 Principle

The polymer material in the electrical and electronic products is treated by an oxygen bomb combustion method to convert fluorine, chlorine and bromine in the sample into hydrogen fluoride and chlorination.

After hydrogen and hydrogen bromide are absorbed by the absorption liquid, the fluoride, chloride and bromide ions in the sample are measured by ion chromatography, and the external standard method is used.