ASTM B781-93a(2006)
Historical Standard: ASTM B781-93a(2006) Standard Guide for Silver-Cadmium Oxide Contact Material
SUPERSEDED (see Active link, below)
ASTM B781
1. Scope
1.1 This guide provides guidelines for users and manufacturers of silver-cadmium oxide material produced in strip, rod, wire, and part form for electrical contact applications.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices , and determine the applicability of regulatory limitations prior to use.
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
B311 Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity
B476 Specification for General Requirements for Wrought Precious Metal Electrical Contact Materials
C914 Test Method for Bulk Density and Volume of Solid Refractories by Wax Immersion
Keywords
cadmium oxide; cadmium; contacts; internal oxidation; powder metallurgy; silver-cadmium oxide; silver; wrought ; Cadmium oxide contact materials; Silver-cadmium oxide contact materials; Silver (electrical/electronic applications)--specifications; Annealing; Chemical analysis--electrical contacts; Composition analysis--electrical contacts; Electrical contact materials (silver-cadmium oxide); Electrical resistance/resistivity--electrical contact materials; Arc-erosion tests; Tolerances--metals/alloys; Cadmium oxide contact materials; Silver-cadmium oxide contact materials; Silver (electrical/electronic applications)--specifications; Annealing; Chemical analysis--electrical contacts; Composition analysis--electrical contacts; Electrical contact materials (silver-cadmium oxide); Electrical resistance/resistivity--electrical contact materials; Arc-erosion tests; Tolerances--metals/alloys
ICS Code
ICS Number Code 77.150.70 (Cadmium and cobalt products)
DOI: 10.1520/B0781-93AR06
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