This standard specifies the terms and definitions, classification, requirements, and test methods of hot compress patches (bags). This standard is applicable to placing the main material components (iron powder, water, activated carbon, salt, etc., and not containing any pharmaceutical ingredients) in a certain proportion into the inner bag for sealing, using the heating principle of oxidation of iron powder, and through heat conduction Adhesive products are used to provide auxiliary treatment to patients. For multi-functional application products (such as those with magnetic therapy, far infrared, etc. functions), if there are corresponding national standards and/or industry standards for other functions, they should also comply with the requirements of other relevant standards. This standard does not apply to: patch products containing chemical ingredients, Chinese herbal medicines (or natural plants) and their extracts, etc., which contain ingredients that exert pharmacological, immunological or metabolic effects; Plants) and their extracts, etc., and it is impossible to prove that the products contained in them do not exert pharmacological, immunological or metabolic effects.