GB/T 10504-2017

GB/T 10504-2017 specifies the technical requirements, test methods, inspection rules, and packaging for 3A molecular sieve, a type of zeolite with a pore size of approximately 3 angstroms. It is primarily applied in the chemical and petrochemical industries for drying gases and liquids, such as natural gas, cracked gas, and refrigerants, where selective adsorption of water molecules is required while excluding larger molecules. The standard ensures consistent performance in industrial dehydration processes, including in air separation units and ethylene plants.