GBW06143–氮气中四氯化碳、三氯一氟甲烷、1,1,2-三氯三氟乙烷、1,2-二氯四氟乙烷、一氯五氟乙烷、一氯二氟甲烷、1,1-二氯-1-氟乙烷、1-氯-1,1-二氟乙烷、二氯二氟甲烷、五氟乙烷、1,1,1,2-四氟乙烷、1,1,1-三氟乙烷、1,1-二氟乙烷、三氟甲烷、二氟甲烷混合气体标准物质

Standard substances for carbon tetrachloride, trichlorotrifluoromethane, 1, 1, 2-trichlorotrifluoromethane, 1, 2-dichlorotetrafluoroethane, monochloropentafluoroethane, monochlorodifluoromethane, 1, 1-dichloro-1-fluoroethane, 1-chloro-1, 1-difluoroethane, dichlorodifluoromethane, pentafluoroethane, 1, 1, 1, 2-tetrafluoroethane, 1, 1, 1-trifluoroethane, 1, 1-difluoroethane, trifluoromethane, and difluoromethane mixed gases in nitrogen gas