ASTM-B772 Historical Revision Information
Standard Guide for Specifying the Chemical Compositions for Electrical Contact Materials (Arcing and Nonarcing)

ASTM-B772 - 1987 R91(E1) EDITION - SUPERSEDED
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Standard Guide for Specifying the Chemical Compositions for Electrical Contact Materials (Arcing and Nonarcing) (Withdrawn 2021)
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Scope

1.1 This guide provides suggested methods for users and producers of electrical contact materials to specify the chemical compositions of these materials.

1.2 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

1.3 It is the responsibility of the user to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer.

Keywords

analysis; chemical composition; contacts; electrical contact materials; impurities; tolerance limits; ICS Number Code 77.040.30 (Chemical analysis of metals)

To find similar documents by ASTM Volume:

02.04 (Nonferrous Metals--Nickel, Cobalt, Lead, Tin, Zinc, Cadmium, Precious, Reactive, Refractory Metals and Alloys; Materials for Thermostats, Electrical Heating and Resistance Contacts, and Connectors)

To find similar documents by classification:

77.040.30 (Chemical analysis of metals Chemical analysis in general, see 71.040.40 Chemical analysis of ferrous metals, see 77.080 Chemical analysis of ferroalloys, see 77.100 Chemical analysis of non-ferrous metals, see 77.120 Chemical analysis of sintered metals and hard metals, see 77.160)

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Document Number

ASTM-B772-87(1991)e1

Revision Level

1987 R91(E1) EDITION

Status

Superseded

Modification Type

New

Publication Date

Aug. 1, 1991

Document Type

Guide

Page Count

2 pages

Committee Number

B02.05