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ASTM-F14:2010 Edition

ASTM-F14:2010 Edition

$35.75

F14-80(2010) Standard Practice for Making and Testing Reference Glass-Metal Bead-Seal

Published By Publication Date Number of Pages
ASTM 2010 4
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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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Summary of Practice
Significance and Use
Apparatus
2 Materials
Seal-Making Procedure
Annealing
Procedure for Measuring Optical Retardation
Calculations
3 Report
A1. DIRECTIONS FOR CLEANING AND HEAT-TREATING SPECIMENS OF GLASS AND METAL FOR MAKING SEALS
A1.1
A1.2
A1.3
A1.4
FIG. 1

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