GB/T 20975.4-2020 Active National standards

GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content

GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content

Publish Date: 2020-06-02 Implement Date: 2021-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 20975.4-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for light metals and their alloys

ICS Name: Aluminum and aluminum alloys

Publish Date: 2020-06-02

Implement Date: 2021-04-01

Pages: 9 pages

Scope

This part of GB/T 20975 specifies the spectrophotometric method with o-phenanthroline and the potassium dichromate titration method for determining the iron content in aluminum and aluminum alloys. This part is applicable to the arbitral determination of iron content in aluminum and aluminum alloys. The determination range of the spectrophotometric method with o-phenanthroline is 0.001% to 3.50%; the determination range of the potassium dichromate titration method is >3.50% to 65.00%.

Development Information

Word Count: 18 Thousand words Pages: 9 pages

Same series standard

GB/T 20975.3-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 3:Determination of copper content GB/T 20975.5-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 5:Determination of silicon content GB/T 20975.6-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 6:Determination of cadmium content GB/T 20975.7-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content GB/T 20975.8-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 8:Determination of zinc content GB/T 20975.9-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry GB/T 20975.10-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 10:Determination of tin content GB/T 20975.12-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 12:Determination of titanium content GB/T 20975.13-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 13:Determination of vanadium content GB/T 20975.14-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 14:Determination of nickel content GB/T 20975.15-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 15:Determination of boron content GB/T 20975.16-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 16:Determination of magnesium content GB/T 20975.17-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 17:Determination of strontium content GB/T 20975.18-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content GB/T 20975.19-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 19:Determination of zirconium content GB/T 20975.20-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 20:Determination of gallium content—Butyrhodamine B spectrophotometric method GB/T 20975.21-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 21:Determination of calcium content GB/T 20975.22-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content GB/T 20975.23-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 23:Determination of antimony content GB/T 20975.24-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 24:Determination of total rare earth content GB/T 20975.25-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 25:Determination of elements content—Inductively coupled plasma atomic emission spectrometric method GB/T 20975.32-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 32:Determination of bismuth content GB/T 20975.33-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 33:Determination of potassium content—Flame atomic absorption spectrometric method GB/T 20975.34-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 34:Determination of sodium content—Flame atomic absorption spectrometric method GB/T 20975.35-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method GB/T 20975.36-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 36:Determination of silver content—Flame atomic absorption spectrometry GB/T 20975.37-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content

Replace the following standards

GB/T 20975.4-2008 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content—Orthopenanthroline photometric method

Referenced Standards

GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8005.2-2011 Terms of aluminium and aluminium alloys—Part 2:Chemical analysis

Related Standards

GB/T 3250-1982 Replaced

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