HJ 1196-2021
Determination of Industrial Cleaning Agents HCFC-141b, CFC-113, TCA and CTC by Gas Chromatography-Mass Spectrometry (English Version)
- Standard No.
- HJ 1196-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Professional Standard - Environmental Protection
- Latest
- HJ 1196-2021
- Scope
- This standard specifies the determination of 1,1-dichloro-1-fluoroethane (HCFC-141b) and 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113) in industrial cleaning agents. ), 1,1,1-trichloroethane (TCA) and carbon tetrachloride (CTC) by gas chromatography-mass spectrometry. This standard is applicable to the determination of the mass fraction of HCFC-141b, CFC-113, TCA and CTC in industrial cleaning agents, but is not applicable to the determination of the purity of the above compounds. When the sampling amount is 0.5 g, the detection limits of this standard for the determination of HCFC-141b, CFC-113, TCA and CTC are 0.5%, 0.5%, 0.4% and 0.5% respectively, and the lower detection limits are 2.0% and 2.0% respectively. , 1.6% and 2.0%.
HJ 1196-2021 Referenced Document
- GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
- GB/T 6678 General principles for sampling chemical products
- GB/T 6680 General rules for sampling liquid chemical products
HJ 1196-2021 history
- 2021 HJ 1196-2021 Determination of Industrial Cleaning Agents HCFC-141b, CFC-113, TCA and CTC by Gas Chromatography-Mass Spectrometry
