GB/T 223.20-1994
钢铁及合金化学分析方法 电位滴定法测定钴量
Methods for chemical analysis of iron,steel and alloy--The fotentiometric titration method for the determination of cobalt content
- 实施日期
- 1994-10-01
- ICS 分类
- 77.080
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 304 条
GB/T 223.20-1994
Methods for chemical analysis of iron,steel and alloy--The fotentiometric titration method for the determination of cobalt content
GB/T 223.18-1994
Methods for chemical analysis of iron,steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content
GB/T 223.16-1991
Methods for chemical analysis of iron,steel and alloy--The chromotropic acid photometric method for the determination of titanium content
GB/T 223.12-1991
Methodsfor chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
GB/T 223.37-1989
Methods for chemical analysis of iron,steel and alloy--The indophenol blue photometric method for the determination of nitrogen content after distillation separation
GB/T 223.28-1989
Methods for chemical analysis of iron,steel and alloy--The α-benzoinoxime gravimetric method for the determination of molybdenum content
GB/T 223.19-1989
Methods for chemical analysis of iron,steel and alloy--The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 223.17-1989
Methods for chemical analysis of iron,steel and alloy--The diantipyryl methane photometric method for the determination of titanium content
GB/T 223.66-1989
Methods for chemical analysis of iron,steel and alloy--The thiocyanate chlorpromazine hydrochloride--chloro form extraction photometric method for the determination of tungsten content
GB/T 223.46-1989
Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrometric method for the determination of magnesium content
GB/T 223.63-1988
Methods for chemical analysis of iron,steel and alloy--The sodium (potassium) periodate photometric method for the determination of manganese content
GB/T 223.3-1988
Methods forchemical analysis of iron,steel and alloy--The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.62-1988
Methods for chemical analysis of iron,steel and alloy--The butyl acetate extraction photometric method for the determination of phosphorus content
GB/T 223.61-1988
Methods for chemical analysis of iron,steel and alloy--The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.58-1987
Methods for chemical analysis of iron,steel and alloy--The extraction-absorption catalytic polarographic method for the determination of manganese content
GB/T 223.52-1987
Methods for chemical analysis of iron,steel and alloy--The hydroxylamine hydrochloride-iodometric method for the determination of selenium content
GB/T 223.51-1987
Methods for chemical analysis of iron,steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
GB/T 223.57-1987
Methods for chemical analysis of iron,steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content
GB/T 223.54-1987
Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrophotometric method for the determination of nickel content
GB/T 223.53-1987
Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content