GB/T 31530-2015

GB/T 31530-2015 specifies the technical requirements, test methods, inspection rules, and packaging for low-level mercury catalysts used in the production of chloroethylene (vinyl chloride monomer) via acetylene hydrochlorination. It is applied in the chemical industry, particularly in polyvinyl chloride (PVC) manufacturing plants that utilize calcium carbide-based processes, where it defines acceptable mercury content limits and performance criteria to reduce environmental pollution. The standard also guides procurement and quality control for catalyst suppliers and PVC producers, ensuring consistent catalytic activity and safety compliance.