Significance and Use
These test methods for the chemical analysis of metals and alloys are primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.
1. Scope
1.1 These test methods cover procedures for the chemical analysis of chromium-copper alloys having chemical compositions within the following limits:
Copper, %98 and over
Chromium, %0.6 to 1.2
Silicon, %0 to 0.10
Iron, %0 to 0.10
1.2 The analytical procedures appear in the following order:
Sections
|
Copper by the Electrolytic Method
Chromium by the Dichromate (Potentiometric) Method
Silicon by the Perchloric Acid Dehydration Method
2. Referenced Documents
ASTM Standards
E29 Practice for Using Significant Digits in Test Data to Determine Conformance With Specifications
E50 Practices for Apparatus, Reagents, and Safety Precautions for Chemical Analysis of Metals
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E60 Practice for Photometric and Spectrophotometric Methods for Chemical Analysis of Metals
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
Index Terms
ICS Number Code 77.040.30 (Chemical analysis of metals); 77.120.30 (Copper and copper alloys)
DOI: 10.1520/E0118-89R04
ASTM International is a member of CrossRef.
Citing ASTM Standards
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