This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage and safety of 1,1-difluoro-1-chloroethane (HCFC-142b, also referred to as R142b) for industrial use. . This standard applies to 1,1-difluoro-1-chloroethane (HCFC-142b). This product is used as refrigerant, foaming agent and chemical synthesis raw material. Molecular formula: CHClF Relative molecular mass: 100.5 (according to 2011 international relative atomic mass)
HG/T 4795-2014 Referenced Document
GB 14193 Rules for filling of liquefied gas cylinders