GB/T 223.75-1991
Replaced
GB/T 223.51-1987
Active
National standards
GB/T 223.51-1987 Methods for chemical analysis of iron，steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
GB/T 223.51-1987 Methods for chemical analysis of iron，steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
Basic Information
Standard Code:
GB/T 223.51-1987
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Analysis methods for steel and iron alloys
ICS Name:
Black metals
Publish Date:
1987-05-12
Implement Date:
1988-03-01
Pages:
4 pages
Development Information
Same series standard
GB/T 223.52-1987 Methods for chemical analysis of iron，steel and alloy--The hydroxylamine hydrochloride-iodometric method for the determination of selenium content
GB/T 223.53-1987 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content
GB/T 223.54-1987 Methods for chemical analysis of iron,steel and alloy—The flame atomic absorption spectrophotometric method for the determination of nickel content
GB/T 223.58-1987 Methods for chemical analysis of iron，steel and alloy--The extraction-absorption catalytic polarographic method for the determination of manganese content
Adopt standards
ГОСТ 12362:1979
Related Standards
GB/T 3875-1983
Replaced
GB/T 3875-1983 Tungsten sheet
GB/T 3876-1983
Replaced
GB/T 3876-1983 Molybdenum and molybdenum alloy sheet
GB/T 3877-1983
Replaced
GB/T 3877-1983 Molybdenum foil
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
GB/T 223.40-1985
Replaced