GB/T 3248-1982
Abolished
GB/T 8638.4-1988
abolished_transferred
National standards
GB/T 8638.4-1988 Nickel base alloy powder—Determination of chromium content—Persulfate oxidation titrimetric method
GB/T 8638.4-1988 Nickel base alloy powder—Determination of chromium content—Persulfate oxidation titrimetric method
Basic Information
Standard Code:
GB/T 8638.4-1988
Standard Type:
National standards
Standard Status:
abolished_transferred
is_force_gb:
no
CCS Name:
Analytical methods for powder metallurgy
ICS Name:
Nickel, chromium, and their alloys
Publish Date:
1988-01-11
Implement Date:
1989-01-01
Publisher:
National Standards Bureau
Pages:
4 pages
Development Information
Drafting Units:
The General Research Institute of Steel of the Ministry of Metallurgical Industry
Drafting Persons:
Yang Qiuping and Zheng Guanhe
Same series standard
GB/T 8638.1-1988 Nickel base alloy powder—Determination of boron content—Alkalimetric method
GB/T 8638.2-1988 Nickel base alloy powder—Determination of aluminium content—Chrome azurol S spectrophotometric method
GB/T 8638.3-1988 Nickel base alloy powder—Determination of silicon content—Gravimetric method after dehydration by perchloric acid
GB/T 8638.5-1988 Nickel base alloy powder—Determination manganese content—Sodium (potassium periodate spectrophotometric method)
GB/T 8638.6-1988 Nickel base alloy powder—Determination of iron content—Titanium trichloride-potassium dichromate titrimetric method
GB/T 8638.7-1988 Nickel base alloy powder—Determination of cobalt content—Nitroso-R salt spectrophotometric method
GB/T 8638.8-1988 Nickel base alloy powder—Determination of copper content—Neocuproine-chloroform extraction spectrophotometric method
GB/T 8638.9-1988 Nickel base alloy powder—Determination of copper content—Thiosulfate-iodimetric method
GB/T 8638.10-1988 Nickel base alloy powder—Determination of melybdenum content—Thiocyanate spectrophotometric method
GB/T 8638.11-1988 Nickel base alloy powder—Determination of tungsten content—Cinchonine gravimetric method
GB/T 8638.12-1988 Nickel base alloy powder—Determination of phosphorus content—N-butyl alcohol-chloroform extraction spectrophotometric method
GB/T 8638.13-1988 Nickel base alloy powder—Determination of oxygen content—Pulse heating inert gas fusion coulometric titrimetric method
Superseded by the following standards
Related Standards
GB/T 4702.10-1985
Active
GB/T 4702.10-1985 Methods for chemical analysis of chromium metal—The cupral spectrophotometric method for the determination of copper content
GB/T 4702.11-1985
Active
GB/T 4702.11-1985 Methods for chemical analysis of chromium metal—The alizarin violet spectrophotometric method for the determination of tin content
GB/T 4702.8-1985
Active
GB/T 4702.8-1985 Methods for chemical analysis of chromium metal—The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content
GB/T 4702.9-1985
Active
GB/T 4702.9-1985 Methods for chemical analysis of chromium metal—The crystal violet spectrophotometric method for the determination of antimony content
GB/T 5123-1985
Replaced