T/ZZB 2950-2022 "Water-based nail polish" Standard Abstract T/ZZB 2950-2022 is a group standard issued by the Zhejiang Branding Federation, which stipulates the basic requirements, technical requirements, test methods, inspection rules, signs, Encasement, transportation, storage and shelf life and mass commitment of water-based nail polish. The standard applies to water-based nail polish products, aiming to standardize their production and quality control, improve product safety and environmental friendliness. Technical requirements include sensory indicators, physical and chemical indicators (such as viscosity, drying time, adhesion, etc.) and limits of harmful substances. The standard also specifies test methods and inspection rules to ensure that products meet mass requirements and provide consumers with safer and more reliable water-based nail polish products.