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。
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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 8654.6-1988
Methods for chemical analysis of manganese metal--The diamine hydrochloride-iodo-metric method for the determination of selenium 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
GB/T 5612-1985
Code for representing cast iron
GB/T 223.48-1985
Methods for chemical analysis of iron，steel and alloy--The semixylenol orange photometric method for the determination of bismuth content
GB/T 223.42-1985
Methods for chemical analysis of iron，steel and alloy--The anion-exchange separation-bromopyrogallol red photometric method for the determination of tantalumcontent
GB/T 223.41-1985
Methods for chemical analysis of iron，steel and alloy--The anion-exchange separation-pyrogallol photometric method for the determination of tantalum content
GB/T 223.38-1985
Methods for chemical analysis of iron，steel and alloy--The anion-exchange separation-gravimetric method for the determination of niobium content
GB/T 222-1984
Method of sampling steel for determination of chemical composition and permissible variations for product analysis
GB/T 4190-1984
Doped molybdenum bars
GB/T 4189-1984
Doped tungsten bars