ASTM B712-93(1999)
Historical Standard: ASTM B712-93(1999) Standard Guide for Determination of Sodium and Potassium Content For Silver-Cadmium Oxide Contact Materials
SUPERSEDED (see Active link, below)
ASTM B712
1. Scope
1.1 This guide describes procedures for use in conducting analysis of silver-cadmium oxide materials for sodium and potassium content. The exact methods for the performance of this testing are not stated since many different procedures are equally applicable. This guide points out specific procedures for decreasing the chance of recognized potential errors and specifies methods for increasing the sensitivity of the testing.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautions see Sections 4 and 6.
1.3 Whoever uses this standard should consult the Material Safety Data Sheet concerning the products involved.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E663 Practice for Flame Atomic Absorption Analysis
Other Document
OperationGuide for Chemical Analysis of Metals and Metal Bearing Ores by Atomic Absorption Spectrophotometry 1982 Annual Book of ASTM Standards, Part 12 (see Related Materials Section).Keywords
analysis; cadmium oxide; contacts; potassium; silver; silvercadmium oxide; sodium ; Cadmium metals/alloys; Cadmium oxide contact materials; Electrical contact materials (silver-cadmium oxide); Potassium content; Silver-cadmium oxide contact materials; Silver (electrical/electronic applications)--specifications; Sodium content
ICS Code
ICS Number Code 77.150.70 (Cadmium and cobalt products)
DOI: 10.1520/B0712-93R99
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