ASTM F 288 : 1996 : R2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Tungsten Wire for Electron Devices and Lamps
Hardcopy , PDF
08-02-2024
English
01-06-2014
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 10.04, 2015 Defines three types of drawn wire for fabrication into parts for electron tubes, lamps, and other devices: and one type of rod for metal-to-glass sealing.
| Committee |
F 01
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| DocumentType |
Standard
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| Pages |
5
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| ProductNote |
Reconfirmed 2014
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1This specification covers three types of drawn wire suitable for fabrication into parts for electron tubes, lamps, and other devices; and one type of rod for metal-to-glass sealing (grid wire is excepted):
1.1.1Type 1A—Commercially pure nonsag wire (Note 2 and Note 3).
1.1.2Type 1B—Commercially pure rod suitable for metal-to-glass sealing.
1.1.3Type 2A—Thoriated filament wire containing 1 % thoria.
1.1.4Type 2B—Thoriated filament wire containing 2 % thoria.
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.
1.3Types 1A and 1B are designated as UNS R07005. Type 2A is designated as UNS R07911. Type 2B is designated as UNS R07912.
1.4The following precautionary caveat pertains only to the Chemical Analysis, Section 12 of this specification: 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.
Note 1:A dimensional measurement method for testing nonsag tungsten wire above 0.030 in. (0.76 mm) in diameter is provided in Test Method F269.
Note 2:Acceptance of nonsag wire characteristics for particular applications of size shall be by agreement between producer and consumer based on either a flashed microstructure as shown by photomicrographs, or on dimensional measurement limits determined in accordance with Test Method F269.
| MIL-STD-129 Revision R:2014 | Military Marking for Shipment and Storage |
| ASTM F 219 : 1996 | Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps |
| MIL-STD-105 Revision E:1989 | SAMPLING PROCEDURES AND TABLES FOR INSPECTION BY ATTRIBUTES |
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