GB/T 223.75-1991
Replaced
JB/T 7520.3-1994
Abolished
Industry standards-Mechanical
JB/T 7520.3-1994 The chemical analysis method for phosphorus copper brazing material using the method of measuring phosphorus by using barium molybdate photometry
JB/T 7520.3-1994 The chemical analysis method for phosphorus copper brazing material using the method of measuring phosphorus by using barium molybdate photometry
Price:
$ 30
Basic Information
Standard Code:
JB/T 7520.3-1994
Standard Type:
Industry standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Welding and cutting
ICS Name:
Black metals
Publish Date:
1994-12-09
Implement Date:
1995-10-01
Pages:
2 pages
Development Information
Same series standard
JB/T 7520.1-1994 Chemical Analysis Methods for Phosphorus Bronze Brazing Alloys - Determination of Copper Content by EDTA Volumetric Method
JB/T 7520.2-1994 Phosphor Copper Solder Chemical Analysis Method: Silver Determination by Silver Chloride Weighing Method
JB/T 7520.4-1994 Phosphorus copper brazing material chemical analysis method - Determination of antimony content by potassium sulfide photometry
JB/T 7520.5-1994 The chemical analysis method for phosphorus copper brazing material: tin determination by hypophosphite reduction capacity method
JB/T 7520.6-1994 The Chemical Analysis Method for Copper-Phosphorus Solder: Determination of Nickel Using Diacetylmonoxime Spectrophotometry
Superseded by the following standards
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