ASTM B 684 : 1997 : R2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for Platinum-Iridium Electrical Contact Materials
Hardcopy , PDF
11-11-2014
English
01-11-2012
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 02.04, 2015 Includes 85% platinum - 15% iridium alloy, and 90% platinum - 10% iridium alloy, in the form of rod, wire, strip, and sheet material for electrical contacts.
| Committee |
B 02
|
| DevelopmentNote |
Supersedes MIL E 46065 (07/2004)
|
| DocumentType |
Standard
|
| Pages |
3
|
| ProductNote |
Reconfirmed 2012
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This specification covers an 85 % platinum—15 % iridium alloy, and a 90 % platinum—10 % iridium alloy, in the form of rod, wire, strip, and sheet material for electrical contacts.
| Element | 85 Pt/15 Ir | 90 Pt/10 Ir |
| Weight % | Weight % | |
| Pt | balance | balance |
| Ir | 14.50-15.50 | 9.50-10.50 |
| Total Impurities | 0.2 max. | 0.2 max. |
| Total Platinum Group (Pd, Rh, Os, Ru), Au | 0.1 max. | 0.1 max. |
| Total Other Impurities (including the | 0.1 max. | 0.1 max. |
| Pb, Sb, Bi, Sn, As, Cd, Zn | 0.01 max each | 0.01 max each |
| Fe | 0.015 max each | 0.015 max each |
| Other elements | 0.02 max each | 0.02 max each |
1.2The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3The original specification, B684 - 81, covered the 85 % platinum 15 % iridium alloy. The 1997 revision of this specification added the 90 % platinum 10 % iridium alloy.
1.4This 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.
| ASTM B 277 : 1995 | Standard Test Method for Hardness of Electrical Contact Materials |
| ASTM E 384 : 2017 : REDLINE | Standard Test Method for Microindentation Hardness of Materials |
| ASTM E 8 : 2004 | Standard Test Methods for Tension Testing of Metallic Materials |
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