This standard specifies the terminology, classification, requirements, test methods, inspection rules, packaging, labeling, storage and transportation of spherical molecular sieve desiccants for refrigerants. This standard applies to spherical molecular sieve products for refrigerants, which are mainly used for drying refrigerants in various refrigeration systems.
HG/T 4220-2011 Referenced Document
GB/T 191-2008 Packaging.Pictorial marking for handling of goods
GB/T 6286-1986 Determination of bulk density for molecular sieve
GB/T 6288 Determination of particle size for granular molecular sieve*, 2021-08-20 Update
GB/T 6679-2003 General rules for sampling solid chemical products
HG/T 2783 Test method for crushing resistance of molecular sieves*, 2020-12-09 Update
HG/T 3590 Test method of Attrition of molecular Sieve Desiccant Used in Refrigeration System
HG/T 4220-2011 history
2011HG/T 4220-2011 Molecular sieve desiccant of dehydration refrigerant