2025-12-21 216.73.216.41
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
GB 8654.5-1988 Methods for chemical analysis of manganese metal; The molybdenum blue photometric method for the determination of phosphorus content 45.0 via email in 1~3 business day valid,,1989-2-1
GB 8654.7-1988 Methods for chemical analysis of manganese metal; The potentiometric titration method for the determination of manganese content 45.0 via email in 1~3 business day valid,,1989-2-1
GB 8654.4-1988 Methods for chemical analysis of manganese metal; The perchloric acid dehydration gravimetric method for the determination of silicon content 30.0 via email in 1~3 business day valid,,1989-2-1
GB 223.5-1988 Methods for chemical analysis of iron, steel and alloy--The oxalic acid-ferrous sulfate molybdosilicate blue complex photometric method for the determination of silicon content 60.0 via email in 1~3 business day valid,,1989-2-1
GB 223.3-1988 Methods for chemical analysis of iron, steel and alloy; The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content 40.0 via email in 1 business day valid,,1989-2-1
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atomic absorption spectrometric method for the determination of cobalt content 184.0 via email in 1~3 business day superseded,2013-10-1,1989-2-1
GB 223.61-1988 Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content 60.0 via email in 1 business day valid,,1989-2-1
GB 223.4-1988 Methods for chemical analysis of iron, steel and alloy; The volumetric method for determination of manganese content by ammonium nitrate oxidation 60.0 via email in 1~3 business day superseded2008-12-01,2008-12-1,1989-2-1
GB 8654.6-1988 Methods for chemical analysis of manganese metal; The diamine hydrochloride-iodo-metric method for the determination of selenium content 60.0 via email in 1~3 business day valid,,1989-2-1
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 60.0 via email in 1 business day valid,,1989-2-1
GB 8654.2-1988 Methods for chemical analysis of manganese metal; The titanium trichloride-potassium volumetric method for the determination of iron content 15.0 via email in 1~3 business day superseded2008-02-01 ,2008-2-1,1989-2-1
GB 223.63-1988 Methods for chemical analysis of iron, steel and alloy; The sodium(potassium)periodate photometric method for the determination of manganese content 40.0 via email in 1 business day superseded,2023-2-1,1989-2-1
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 60.0 via email in 1 business day valid,,1989-2-1
GB 223.62-1988 Methods for Chemical Analysis of Iron, Steel and Alloy - The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content 50.0 via email in 1 business day valid,,1989-2-1
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 184.0 via email in 1~3 business day superseded,2008-11-1,1989-2-1
GB 7731.3-1987 Methods for chemical analysis of ferrotungsten-The bis (cyclohexanone) oxalyldihydrazone photometric method for the determination of copper content 30.0 via email in 1~3 business day valid,,1988-3-1
GB 7731.2-1987 Methods for chemical analysis of ferrotungsten-The sodium periodate photometric method for the determination of manganese content 30.0 via email in 1~3 business day valid,,1988-3-1
GB 223.60-1987 Methods for chemical analysis of iron,steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content 45.0 via email in 1~3 business day superseded,1997-9-1,1988-3-1
GB 7731.1-1987 Methods for chemical analysis of ferrotungsten-The cinchonine gravimetric method for the determination of tungsten content 60.0 via email in 1~3 business day superseded,2022-3-1,1988-3-1
GB 223.54-1987 Methods for chemical analysis of iron,steel and alloy; The flame atomic absorption spectrophotometric method for the determination of nickel content 30.0 via email in 1~3 business day superseded,2023-2-1,1988-3-1
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GB 8654.5-1988 Methods for chemical analysis of manganese metal; The molybdenum blue photometric method for the determination of phosphorus content 
  Issued on: 1988-01-18   Price(USD): 45.0
GB 8654.7-1988 Methods for chemical analysis of manganese metal; The potentiometric titration method for the determination of manganese content 
  Issued on: 1988-01-18   Price(USD): 45.0
GB 8654.4-1988 Methods for chemical analysis of manganese metal; The perchloric acid dehydration gravimetric method for the determination of silicon content 
  Issued on: 1988-01-18   Price(USD): 30.0
GB 223.5-1988 Methods for chemical analysis of iron, steel and alloy--The oxalic acid-ferrous sulfate molybdosilicate blue complex photometric method for the determination of silicon content 
  Issued on:   Price(USD): 60.0
GB 223.3-1988 Methods for chemical analysis of iron, steel and alloy; The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content 
  Issued on: 1988-01-18   Price(USD): 40.0
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 
  Issued on: 1988-02-05   Price(USD): 184.0
GB 223.61-1988 Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content 
  Issued on: 1988-02-05   Price(USD): 60.0
GB 223.4-1988 Methods for chemical analysis of iron, steel and alloy; The volumetric method for determination of manganese content by ammonium nitrate oxidation 
  Issued on: 1988-02-05   Price(USD): 60.0
GB 8654.6-1988 Methods for chemical analysis of manganese metal; The diamine hydrochloride-iodo-metric method for the determination of selenium content 
  Issued on: 1988-1-18   Price(USD): 60.0
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 
  Issued on: 1988-2-5   Price(USD): 60.0
GB 8654.2-1988 Methods for chemical analysis of manganese metal; The titanium trichloride-potassium volumetric method for the determination of iron content 
  Issued on: 1988-01-18   Price(USD): 15.0
GB 223.63-1988 Methods for chemical analysis of iron, steel and alloy; The sodium(potassium)periodate photometric method for the determination of manganese content 
  Issued on: 1988-02-05   Price(USD): 40.0
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 
  Issued on: 1988-2-5   Price(USD): 60.0
GB 223.62-1988 Methods for Chemical Analysis of Iron, Steel and Alloy - The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content 
  Issued on: 18-Jan-88   Price(USD): 50.0
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 
  Issued on: 1988-2-5   Price(USD): 184.0
GB 7731.3-1987 Methods for chemical analysis of ferrotungsten-The bis (cyclohexanone) oxalyldihydrazone photometric method for the determination of copper content 
  Issued on: 1987-03-31   Price(USD): 30.0
GB 7731.2-1987 Methods for chemical analysis of ferrotungsten-The sodium periodate photometric method for the determination of manganese content 
  Issued on: 1987-03-31   Price(USD): 30.0
GB 223.60-1987 Methods for chemical analysis of iron,steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content 
  Issued on:   Price(USD): 45.0
GB 7731.1-1987 Methods for chemical analysis of ferrotungsten-The cinchonine gravimetric method for the determination of tungsten content 
  Issued on: 1987-03-31   Price(USD): 60.0
GB 223.54-1987 Methods for chemical analysis of iron,steel and alloy; The flame atomic absorption spectrophotometric method for the determination of nickel content 
  Issued on: 1987-04-03   Price(USD): 30.0
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