GB 2798-1981.Types and dimensions of cylindrical and recessed caps.GB 2798适用于电光源用圆简式和凹式灯头。1圆简式和凹式灯头的型号应符合国家标准GB 1...
GB/T 2678. 5-1996.Paper , board and pulp-Determination of water soluble chhorides(AgNO; method).1范围GB/T 2678. 5规定了测定纸、纸板和纸浆水溶性氯化物的方法。...
GB/T 2678. 4-1994.Pulp and paper- Determination of zero-span tensile properties.1主题内容与适用范围GB/T 2678. 4规定了用符合标准要求的零距抗张强度试验仪测...
GB 12112-1989.Industrial sewing machine- cylinder bed covering chainstitch sewing machine heads model GK.I主题内容 与适用范围GB 12112规定了简式机体的覆盖链式线迹...
GB 12111-1989.Industrial sew ing machi ne-L ockstitch straight butt onhole sewi g machine heads.5技术要求5.1外观质最5.1.1烘漆件表面应平整、色泽均匀，主要可见...
GB 12107-1989.Series of key width measurements for keyboard musical inst rument.1主题内容与适用范围GB 12107规定了键盘乐器每音组键的宽度、相邻白键的间隙和...
GB 9985-1988.Dishwashing detergents.3.3.1所用色素和香料必须是食品添加剂规范产品。3.3.2所用表面活性剂的生物降解性应不小于80%。4试验方法4.1餐具...
GB 9105-1988.The glass blanks of photochromic spectacle lens.5.4.3五分钟透射比、 半复明时间用光色性能测试仪进行 测试。5.5规格尺寸的测量5.5.1直径允差...
GB 8230-1987.Tinplate (or ECCS)coated with the epoxy-phenolic type of lacquers.GB 8230是环氧酚醛型涂膜(或采用其他底涂膜)涂覆的镀锡(或镀铬)薄钢板的通用规...
GB 8058-2003.Standard permissible limits and testing method for release of lead or cadmium from ceramic cookware.5.3.4 1 000 mg/L镉标准溶液称取经(105~110)C烘2 h的氧化镉...
