Home / Standards / GB/T 43102-2023 GB/T 43102-2023 Active Metallic coatings—Porosity tests—Porosity in gold or palladium coatings by sulfurous acid/sulfur dioxide vapour 金属覆盖层 孔隙率试验 用亚硫酸/二氧化硫蒸汽测定金或钯镀层孔隙率 Standard Type GBT ICS 25.220.40 CCS A29 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A