GB/T 17001.3-2025 "Anti-counterfeiting ink - Part 3: Thermal discoloration anti-counterfeiting ink" is the core technical standard formulated by the state for anti-counterfeiting ink with thermal discoloration function. The standard specifies in detail the classification, technical requirements, corresponding test methods, inspection rules of such inks, and the whole process requirements such as marking, Encasement, transportation and storage. Its core purpose is to ensure that the key performance of thermal discoloration anti-counterfeiting inks - such as specific discoloration temperatures, obvious color differences, and necessary durability - has a uniform and reliable mass benchmark, thus providing technical assurance for the validity and conformity of product anti-counterfeiting verification. The implementation of this standard is of great significance for regulating the market, guiding production and procurement acceptance.