HG/T 4264-2022 "Spinning & weaving dyeing and finishing aids, waterproof and oil-proof processing agents, determination of water resistance" specifies the method for determining the water resistance of water-proof and oil-proof processing agents in Spinning & weaving dyeing and finishing aids. This standard is suitable for evaluating the waterproof performance of Spinning & weaving products after waterproof and oil-proof processing, mainly using the spray method to test the waterproof rating of processed fabrics. The standard establishes essential normative reference documents, including specifications for analytical laboratory water, Spinning & weaving products, color fastness test standards, and Miscellaneous related methods.