2023-9-24 18.232.179.37
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Chinese National Standard List: Steel and iron alloy analysis method

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/T 42794-2023 Ferronickel―Determination of carbon,sulfur,silicon,phosphorus,nickel,cobalt,chromium and copper contents―Spark atomic emission spectrometry 
  Issued on: 2023-08-06   Price(USD): 255.0
GB/T 5686.7-2022 Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of sulfur content—Infrared absorption method and combustion-neutralization method 
  Issued on: 2022-12-30   Price(USD): 255.0
GB/T 5686.4-2022 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of phosphorus content—Molybdenum blue spectrophotometric method and bismuth phosphomolybdate blue spectrophotometric method 
  Issued on: 2022-10-12   Price(USD): 225.0
GB/T 223.54-2022 Iron, steel and alloy—Determination of nickel content—Flame atomic absorption spectrometric method  
  Issued on: 2022-7-11   Price(USD): 315.0
GB/T 5686.1-2022 Ferromanganese，ferromanganese-silicon，nitrogen-bearing ferromanganese and manganese metal—Determination of manganese content—Potentiometric method， titrimetric method after ammonium nitrate oxidation and titrimetric method after perchloric acid oxidation 
  Issued on: 2022-10-14   Price(USD): 270.0
GB/T 223.63-2022 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method 
  Issued on: 2022-07-11   Price(USD): 225.0
GB/T 5686.2-2022 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method , silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method 
  Issued on: 2022-10-12   Price(USD): 225.0
GB/T 41496-2022 Ferroalloys一Determination of moisture of lots一Gravimetric method 
  Issued on: 2022-4-15   Price(USD): 180.0
GB/T 40311-2021 Vanadium slag—Determination of multi-element contents—Wavelength dispersive X-ray fluorescence spectrometry(fused cast bead method) 
  Issued on: 2021-08-20   Price(USD): 315.0
GB/T 223.90-2021 Iron, steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method 
  Issued on: 2021-08-20   Price(USD): 255.0
GB/T 40312-2021 Ferrophosphorus—Determination of phosphorus, silicon, manganese and titanium content—Wavelength dispersive X-ray fluorescence spectrometry method (fused cast bead method) 
  Issued on: 2021-08-20   Price(USD): 225.0
GB/T 223.91-2021 Iron, steel and alloy—Determination of copper—2,2’-Biquinoline spectrophotometric method  
  Issued on: 2021-08-20   Price(USD): 225.0
GB/T 5687.13-2021 Ferrochromium—Determination of chromium, silicon, manganese, titanium, vanadium, iron contents—Wavelength dispersive X-ray fluorescence spectrometry (fused cast bead method) 
  Issued on: 2021-08-20   Price(USD): 255.0
GB/T 223.37-2020 Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation 
  Issued on: 2020-06-02   Price(USD): 225.0
GB/T 8704.10-2020 Ferrovanadium—Determination of silicon, manganese, phosphorus, aluminum, copper, chromium, nickel and titanium contents— Inductively coupled plasma atomic emission spectrometric method 
  Issued on: 2020-06-04   Price(USD): 315.0
GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method 
  Issued on: 2019-08-30   Price(USD): 220.0
GB/T 223.89-2019 Iron , steelandalloy — Determination of tellurium content —Hydride generation-atomic fluorescence spectrometric method 
  Issued on: 2019-08-30   Price(USD): 120.0
GB/T 3653.7-2020 Ferroboron—Determination of sulfur content—Infrared absorption method 
  Issued on: 2020-03-06   Price(USD): 160.0
HS/T 64-2019 Qualitative analysis for the crystalline state of Fe-based alloy strips 
  Issued on: 2019-12-19   Price(USD):
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