GB国家标准 - 第 145

GB 5929-1986 轻工产品金属镀层和化学处理层的厚度测试方法金相显微镜法

GB 5929-1986.Thickness testing method of the metal deposits and conversion coatings for the light In...

01月07日

GB 5928-1986.Thickness testing method of the metal deposits and aluminum oxide films for the light i...

01月07日

GB 5927-1986.Thlckness testlug method of the metal deposits for the lIght industrial products Timeke...

01月07日

GB 5926-1986.Surface eramination method of the metal deposits and converslon coatings for the light ...

01月07日

GB 5178-1985.Determination of mean relative molecular mass for technical straight - chain sodi um al...

01月07日

GB/T 5177. 5-1993.Industrial alkylbenzene. 5.4.2取样方法 a.对罐装产品,用具有易开启盖且底部加重的洁净金属取样器,沉入液面下约三分之二深处取样。 ...

01月07日

GB 5177.4-1985.Determination of bromine index for industri al alkylbenzene - Electrometric titration...

01月07日

GB 5177.3-1985.Determination of mean relative molecular mass for industrial alkylbenzene - Gas- liqu...

01月07日

GB 5177.2-1985.Determination of sul phonatable matter content for industrial alkylbenzene. 5试验程序 5.1...

01月07日

GB 5174-1985.S urface active agents 一Detergents 一Deter mination of cationic - active matter- Direct ...

01月07日