The standard "SN/T 5346-2021 Determination of powder coatings vocs (VOCs) " specifies the determination methods and analytical procedures for vocs (VOCs) in powder coatings. This standard is suitable for evaluating the amount of organic volatile substances released by powder coatings during use and storage, and is designed to help control and reduce the impact of coatings on the environment. The standard details the preparation of samples, the determination principle, the instrumentation equipment and its calibrating requirements, providing effective analytical tools and guidance for Coating manufacturers and regulatory agencies.