GB 30981-2020 Translated English of Chinese Standard. GB30981-2020: Limit of Harmful Substances of Industrial Protective Coatings
https://www.chinesestandard.net, 31 de mar. de 2020 - 32 páginas
This Standard specifies the classification, requirements, test methods, inspection rules, packaging marks, and standard implementations for the products involved in the allowable limits for substances harmful to humans and the environment in industrial protective coatings.
buffer solution carbazide carried out according coat Top coat coatings shall meet construction ratio content in water-based content of glycol content of toluene detection limit digester B.3.5 diluted solvent dry film Edition ethylene glycol extracting solution Floating coat Top Gas Chromatography glycol ethers hexavalent chromium Cr6+ industrial protective coatings internal standard substance Limit Value Requirements Main Product Types mass concentration mass fraction matrix spike recovery meet the requirements Method GB/T mg/kg mg/L moisture content molecular sieve nitric acid non-volatile matter content packaging mark Paints and Varnishes peak area polycyclic aromatic hydrocarbons Primer Floating coat product manual provisions of GB/T relative response factor requirements of Table sample bottle A.2.4 solvent-based coatings solvent-free coatings specimen by dry sulfuric acid Take about 1g test results test solution Top coat Primer Top coat Varnish total content ultrasonic water bath value of VOC VOC content Volatile Organic Compound volumetric flask water-based coatings xylene containing ethylbenzene