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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 6276.9-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 9: Heavy metal content - Visible turbidimetric method
GB/T 6276.8-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 8: Arsenic content - Gutzeit method
GB/T 6276.5-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 5: Ash content - Gravimetric method
GB/T 6276.6-2010
工业用碳酸氢铵的测定方法 第6部分:铁含量 邻菲啰啉分光光度法
Determination of ammonium hydrogen carbonate for industrial use - Part 6: Iron content o - Phenathroline spectrophotometric method
GB/T 6276.4-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 4: Sulphate content - Visible turbidimetric method
GB/T 6276.3-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 3: Sulphide content - Visible turbidimetric method
GB/T 6276.2-2010
Determination of ammonium hydrogen carbonate for industrial use - Part 2: Chloride content - Potentiometric titration method
GB/T 27040-2010
Conformity assessment - General requirements for peer assessment of conformity assessment bodies and accreditation bodies