GB/T 6276.9-2010

工业用碳酸氢铵的测定方法 第9部分:重金属含量 目视比浊法

Determination of ammonium hydrogen carbonate for industrial use - Part 9: Heavy metal content - Visible turbidimetric method

GB/T 6276.7-2010

工业用碳酸氢铵的测定方法 第7部分:砷含量 二乙基二硫代氨基甲酸银分光光度法

Determination of ammonium hydrogen carbonate for industrial use - Part 7: Arsenic content - Silver diethyl dithiocarbamate photometric method

GB/T 6276.8-2010

工业用碳酸氢铵的测定方法 第8部分:砷含量 砷斑法

Determination of ammonium hydrogen carbonate for industrial use - Part 8: Arsenic content - Gutzeit method

WG Standardization of the German-Chinese Joint Committee of Industry and Trade

About the Workgroup

The German-Chinese Joint Committee of Industry and Trade is the most important coordinating body of the German Ministry of Economics and China's Ministry of Commerce. The Committee's main objective is to promote trade between the two nations, intensify their investment relations and strengthen technology transfer between the partners. Several working groups have been set up to address specific issues in greater detail, such as trade, investments, legal issues, coal, trade statistics and standardization. more