GBZ/T 300.140-2017
Determination of Toxic Substances in Workplace Air - Part 140: Hydrazine, Methylhydrazine and Unsymmetrical Dimethylhydrazine (English Version)

Standard No.

GBZ/T 300.140-2017

Language

Chinese, Available in English version

Release Date

2017

Published By

中华人民共和国国家卫生和计划生育委员会

Latest

GBZ/T 300.140-2017

Replace

GBZ/T 160.71-2004

Scope

This part of GBZ/T300 specifies the solvent desorption-gas chromatography method for hydrazine, methylhydrazine and unsymmetrical dimethylhydrazine in the workplace air. This section is applicable to the detection of the concentration of vapor hydrazine, methyl hydrazine and unsymmetrical dimethyl hydrazine in the air of the workplace.

GBZ/T 300.140-2017 Referenced Document

• GBZ 159 Specifications of air sampling for hazardous substances monitoring in the workplace
• GBZ/T 210.4 Guide for establishing occupational health standards-Part 4: Determination methods of air chemicals in workplace

GBZ/T 300.140-2017 history

• 2017 GBZ/T 300.140-2017 Determination of Toxic Substances in Workplace Air - Part 140: Hydrazine, Methylhydrazine and Unsymmetrical Dimethylhydrazine
• 2004 GBZ/T 160.71-2004 Methods for determination of hydrazines in the air of workplace
• 1997 GB/T 17065-1997 Workplace air--Determination of 1,1-dimethylhydrazine--Gas chromatographic method
• 1996 GB 16221-1996 Health standard for hydrazine in the air of workplace

GBZ/T 300.140-2017 Determination of Toxic Substances in Workplace Air - Part 140: Hydrazine, Methylhydrazine and Unsymmetrical Dimethylhydrazine has been changed from GBZ/T 160.71-2004 Methods for determination of hydrazines in the air of workplace.