Standard No.:	GB/T 682-2002
English Name:	Chemical reagent--Trichloromethane
Chinese Name:	化学试剂 三氯甲烷
Chinese Classification:	G63    General organic reagent and solvent
Professional Classification:	GB    National Standard
ICS Classification:	71.040.30 71.040.30    Chemical reagents 71.040.30
Issued by:	CSBTS
Issued on:	2002-5-29
Implemented on:	2002-12-1
Status:	valid
Superseding:	GB/T 682-1989 Chemical reagent--Chloroform
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	140.0
Delivery:	via email in 1 business day

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