GB/T 10504-2008

GB/T 10504-2008 specifies the technical requirements, test methods, inspection rules, and packaging for 3A molecular sieve, a synthetic zeolite with a pore size of approximately 3 angstroms. It is applied in the chemical and petrochemical industries for drying gases and liquids, such as natural gas, cracked gas, and insulating glass units, where it selectively adsorbs water molecules while excluding larger molecules. The standard ensures consistent performance in dehydration processes, particularly in deep drying applications for industrial gases and refrigerants.