This standard applies to industrial fluoromethanes such as monofluorotrichloromethane (F11), difluorodichloromethane (F12), difluorochloromethane (F22 ) component analysis.
GB/T 7375-1987 history
2006GB/T 7375-2006 Fluorinated methanes for industrial use.Determination of purity.Gas chromatography
1987GB/T 7375-1987 Fluorinated methanes for industrial uses--Determination of purity--Gas chromatography