GB/T 223.12-1991 Replaced National standards

GB/T 223.12-1991 Methods for chemical analysis of iron, steel and alloy—The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content

Publish Date: 1991-09-06 Implement Date: 1992-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 223.12-1991

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Analysis methods for steel and iron alloys

ICS Name: Black metals

Publish Date: 1991-09-06

Implement Date: 1992-06-01

Publisher: The National Technical Supervision Bureau

Technical Committee: The General Research Institute of Steel of the Ministry of Metallurgical Industry

Pages: 8 pages

Development Information

Drafting Units:

The General Research Institute of Steel of the Ministry of Metallurgical Industry

Drafting Persons:

Cao Hongyao

Word Count: 9 Thousand words Pages: 8 pages

Same series standard

GB/T 223.11-1991 Methods for chemical analysis of iron, steel and alloy The ammonium persulfate oxidation volumetric method for the determination of chromium content GB/T 223.16-1991 Methods for chemical analysis of iron, steel and alloy—The chromotropic acid photometric method for the determination of titanium content GB/T 223.72-1991 Methods for chemical analysis of iron, steel and alloy—The alumina chromatographic separation-barium sulfate gravimetric method for the determination of sulphur content GB/T 223.73-1991 Methods for chemical analysis of iron, steel and alloy—The titanium trichloride-potassium dichromate volumetric method for the determination of iron content GB/T 223.75-1991 Methods for chemical analysis of iron, steel and alloy—The methanol distillation-curcumin photometric method for the determination of boron content

Replace the following standards

GB 223.12-1982

Superseded by the following standards

GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method

Related Standards

GB/T 223.75-1991 Replaced

GB/T 223.75-1991 Methods for chemical analysis of iron, steel and alloy—The methanol distillation-curcumin photometric method for the determination of boron content

Publish Date: 1981-09-06

GB/T 3875-1983 Replaced

GB/T 3875-1983 Tungsten sheet

Publish Date: 1983-10-10

GB/T 3876-1983 Replaced

GB/T 3876-1983 Molybdenum and molybdenum alloy sheet

Publish Date: 1983-10-10

GB/T 3877-1983 Replaced

GB/T 3877-1983 Molybdenum foil

Publish Date: 1983-10-10

GB/T 223.38-1985 Active

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

Publish Date: 1985-07-18

GB/T 223.40-1985 Replaced

GB/T 223.40-1985 Methods for chemical analysis of iron, steel and alloy—The anion-exchange separation-sulphochlorophenol S photometric method for the determination of niobium content

Publish Date: 1985-07-18