GB/T 35925-2018: Determination of Impurity Fluorine Ion in Water Soluble Chemicals - Ion Chromatography Method

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Scope

This Standard specifies the ion chromatographic method for the determination of
impurity fluoride ion (F-) content in the water-soluble chemicals.
This Standard is applicable to the determination of fluoride ion content in water-soluble
chemicals with fluoride ion content ≤400mg/kg.
In this Standard, the quantitative limit of organic chemicals is 0.02mg/kg; while the
quantitative limit of inorganic chemicals is 4.0mg/kg.
This Standard is not applicable to the insoluble chemicals and the chemicals with main
component containing fluorine.

Basic Data

Standard ID	GB/T 35925-2018 (GB/T35925-2018)
Description (Translated English)	Determination of Impurity Fluorine Ion in Water Soluble Chemicals - Ion Chromatography Method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G09
Classification of International Standard	71.040.40
Word Count Estimation	10,178
Date of Issue	2018-02-06
Date of Implementation	2018-09-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration