GB/T 23992-2009 "Determination of Chlorinated Hydrocarbon Content in Coatings by Gas Chromatography" specifies the method for determining the content of chlorinated hydrocarbons (such as carbon tetrachloride and trichloroethylene) in coatings, applicable to various types of coating products. After extraction and purification, the samples are separated and detected using a gas chromatograph equipped with an electron capture detector (ECD), with quantification performed by the external standard method. The detection requires instruments such as a gas chromatograph, chromatographic column, Soxhlet extractor, and nitrogen evaporator, providing an accurate testing method for controlling harmful chlorinated hydrocarbons in coatings.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87.040 |
| Release Date | 2009-06-02 00:00:00 | Implementation Date | 2010-02-01 00:00:00 |