This document specifies the gas chromatography method for the determination of the chemical factor chlorochloromethane in workplace air. This document is applicable to the determination of gaseous chlorochloromethane concentration in the air in workplaces.
T/WSJD 18.6-2021 history
2021T/WSJD 18.6-2021 Gas Chromatography for the Determination of Difluorochloromethane in Chemical Factors in the Air of the Workplace