T/CRIAC 0107-2025 Active Group standards

T/CRIAC 0107-2025 Chemical reagent, GC reference substance, trichloromethane

Publish Date: 2025-02-11 Implement Date: 2025-02-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CRIAC 0107-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Chemical production

Publish Date: 2025-02-11

Implement Date: 2025-02-20

Scope

Scope: This document specifies the characteristics, technical requirements, testing methods, inspection rules, and packaging and labeling of methyl chloride, a reference standard for gas chromatography. This document is applicable to the inspection of methyl chloride, a reference standard for gas chromatography. Molecular formula: CHCl3 Molecular weight: 119.38 (based on the 2022 International Atomic Mass Table) CAS number: 67-66-3; Main technical specifications: - Content (CHCl3): w/% ≥ 99.5 - Ethanol (CH3CH2OH, stabilizer): w/% 0.2–0.5 - Carbon tetrachloride (CCl4): w/% ≤ 0.1 - Methylene chloride (CH2Cl2): w/% ≤ 0.11 - 1,2-Dichloroethane (C2H4Cl2): w/% ≤ 0.1 - Density (20°C): ρ/(g/mL) 1.471–1.484 - Evaporation residue: w/% ≤ 0.0005 - Acidity (calculated as H+): b/(mmol/g) ≤ 0.0001 - Chloride (Cl): w/% ≤ 0.00005 - Free chlorine (Cl): w/% ≤ 0.0005 - Moisture (H2O): w/% ≤ 0.02 - Carbonyl compounds (CO): w/% ≤ 0.0003 - Easy carbonization substances: qualified - Applicable to the double sulfide reagent test Note: The water content is not deducted from the content detection results.