GB/T 682-2002 in English

《GB/T 682-2002化学试剂 三氯甲烷》由TC63（全国化学标准化技术委员会）归口，TC63SC3（全国化学标准化技术委员会化学试剂分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了化学试剂 三氯甲烷的技术要求、试验方法、检验规则和包装及标志。

Molecular formula: CHCl3

Relative molecular mass: 119.38 (as per the international relative atomic mass in 1997)

1 Scope

This standard specifies the technical requirements, test methods, inspection rules, packaging and marking of chemical reagent trichloromethane.

2 Normative references

The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions listed are valid.

All normative references are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the normative standards indicated below.

GB/T 601-1988 Chemical reagent — Preparations of standard volumetric solutions
GB/T 602-1988 Chemical reagent — Preparations of stock standard solutions
GB/T 603-1988 Chemical reagent — Preparations of reagent solutions for use in test methods
GB/T 606-1988 Chemical reagent — General method for the determination of water (Karl Fischer method) (eqv ISO 6353-1:1982)
GB/T 611-1988 Chemical reagent — General method for the determination of density (eqv ISO 6353-1:1982)
GB/T 619-1988 Chemical reagent — Regulations for sampling and acceptance
GB/T 6682-1992 Water for analytical laboratory use — Specification and test methods (eqv ISO 3696:1987).
GB/T 9721-1988 Chemical reagent — General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
GB/T 9722-1988 Chemical reagent — General rules for the gas chromatography
GB/T 9729-1988 Chemical reagent — General method for the determination of chloride (eqv ISO 6353-1:1982)
GB/T 9733-1988 Chemical reagent — General method for the determination of carbonyl compounds (eqv ISO 6353-1:1982)
GB/T 9736-1988 Chemical reagent — General method for the determination of acidity and alkalinity (eqv ISO 6353-1:1982)
GB/T 9737-1988 Chemical reagent — General rules for the measurement of readily carbonizable substances (eqv ISO 6353-1:1982)
GB/T 9740-1988 Chemical reagent — General method for the determination of dry residue after evaporation (eqv ISO 6353-1:1982)
GB 15346-1994 Chemical reagent — Packaging and marking

3 Characteristics

This reagent is colorless and transparent liquid, with special odor, volatility and sensitivity to light. It can be mixed with alcohol, benzene, ether, carbon tetrachloride, etc.

Foreword i
1 Scope
2 Normative references
3 Characteristics
4 Specification (see Table 1)
5 Test
6 Inspection rules
7 Packaging and marking