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GB/T 223.59-2008 Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method $70.00 immediately valid
GB/T 223.60-1997 Methods for chemical analysis of iron,steel and alloy The perchloric acid dehydration gravimetric method for the determination of silicon content $60.00 immediately abolished
GB/T 223.60-2024 Iron, steel and alloy—Determination of silicon content—Gravimetric method $255.00 immediately valid
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 $60.00 immediately valid
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 $60.00 immediately valid
GB/T 223.63-2022 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method $225.00 immediately valid
GB/T 223.64-1988 Methods for chemical analysis of iron, steel and alloy; The flame atomic absorption spectrometric method for the determination of manganese content $184.00 via email in 1~3 business day superseded
GB/T 223.64-2008 Iron, Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method $70.00 immediately valid
GB/T 223.65-1988 Methods for chemical analysis of iron, steel and alloy; The flame atomic absorption spectrometric method for the determination of cobalt content $184.00 via email in 1~3 business day superseded
GB/T 223.65-2012 Steel, iron and alloy - Determination of cobalt content - Flame atomic absorption spectrometric method $210.00 immediately valid
GB/T 223.67-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method $60.00 immediately valid
GB/T 223.68-1989 Methods for chemical analysis of iron steel and alloy--The combustion potassium iodate volumetric method for the determination of sulfur content via email in business day superseded
GB/T 223.68-1997 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content $60.00 immediately valid
GB/T 223.69-2008 Iron, Steel and Alloy-Determination of Carbon Contents- Gas-volumetric Method after Combustion in the Pipe Furnace $140.00 immediately valid
GB/T 223.7-1981 Determination of iron content in alloy and powder $80.00 via email in 1~3 business day superseded
GB/T 223.7-2002 Iron powder--Determination of iron content--Potassium dichromate titration method $60.00 immediately valid
GB/T 223.70-2008 Iron steel and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method $110.00 immediately valid
GB/T 223.71-1997 Methods for Chemical Analysis of Iron, Steel and Alloy the Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content $70.00 immediately valid
GB/T 223.72-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric Method $80.00 immediately valid
GB/T 223.73-2008 Iron steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method $130.00 immediately valid
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