ASTM-F14 Standard Practice for Making and Testing Reference Glass-Metal Bead-Seal

ASTM-F14 - 1980 R19 EDITION - CURRENT
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Standard Practice for Making and Testing Reference Glass-Metal Bead-Seal
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Scope

1.1 This practice covers procedures for preparing and testing reference glass-to-metal bead-seals for determining the magnitude of thermal expansion (or contraction) mismatch between the glass and metal. Tests are in accordance with method F218 (2).

1.2 This practice applies to all glass-metal combinations, established or experimental, particularly those intended for electronic components.

1.3 The practical limit of the test in devising mismatch is approximately 300 ppm, above which the glass is likely to fracture.

1.4 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 .

Keywords

bead seals; seals-electronic applications; bead-seals, making/testing (for thermal expansion/contraction mismatch); electronic materials/applications; glass-metal bead-seal; ICS Number Code 29.080.20 (Bushings)

To find similar documents by ASTM Volume:

15.02 (Glass; Ceramic Whitewares)

To find similar documents by classification:

29.080.20 (Bushings)

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Document Number

ASTM-F0014-80R19

Revision Level

1980 R19 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Nov. 1, 2019

Document Type

Practice

Page Count

4 pages

Committee Number

C14.04