GB/T 4699.2-2008
铬铁和硅铬合金 铬含量的测定 过硫酸铵氧化滴定法和电位滴定法
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
- 实施日期
- 2008-11-01
- ICS 分类
- 77.100
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 70,494 条
GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
GB/T 3654.8-2008
Ferroniobium - Determination of tianiun content - Chromotropic acid photometric method
GB/T 3654.6-2008
Ferroniobium - Determination of sulfur content - Combustion-iodate titrimetric method,methylene blue photometric method and infrared absorption method
GB/T 3654.2-2008
Ferroniobium - Determination of copper content - The neocuproine-choroform extraction photometric method
GB/T 3653.4-2008
Ferroboron - Determination of aluminium content - EDTA titrimetric method
GB/T 3074.3-2008
Method for the determination of the oxidation resistance of graphite electrodes
GB/T 3074.2-2008
Method for the determination of the elastic modulus of graphite electrodes
GB/T 3074.1-2008
Method for the determination of the flexure strength of graphite electrodes
GB/T 2601-2008
The chromatographic method for determination of content of hydroxybenzene
GB/T 2293-2008
Pitch products of coal carbonization - Determination of quinoline-insoluble
GB/T 2288-2008
Coking products - Determination of moisture content
GB/T 2281-2008
Determination of density of coking oil products
GB/T 223.9-2008
Iron, steel and alloy - Determination of aluminium content - Chrom azurol S photometric method
GB/T 223.75-2008
Iron,steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method
GB/T 223.73-2008
Iron, steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method
GB/T 223.72-2008
Iron, steel and alloy - Determination of sulfur content - Gravimetric method
GB/T 223.70-2008
Iron, steel and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method
GB/T 223.69-2008
Iron, steel and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace
GB/T 223.55-2008
Iron, steel and alloy - Determination of tellurium content - Oscillo-polarographic method
GB/T 223.29-2008
Iron, steel and alloy - Determination of lead content - Carrier precipitation-xylenol orange spectrophotometric method