Logo

ASTM F14-80(2005)

Historical Reaffirmation

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

$73.00

$73.00

$131.40


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


...

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 ().

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.


The term reference as employed in this practice implies that both the glass and the metal of the reference glass-metal seal will be a standard reference material such as those supplied for other physical tests by the National Institute of Standards and Technology, or a secondary reference material whose sealing characteristics have been determined by seals to a standard reference material (see NIST Special Publication 260).4 Until standard reference materials for seals are established by the NIST, secondary reference materials may be agreed upon between producer and user.5

SDO ASTM: ASTM International
Document Number F14
Publication Date Sept. 1, 2005
Language en - English
Page Count 4
Revision Level 80(2005)
Supercedes
Committee C14.04
Publish Date Document Id Type View
Nov. 1, 2019 F0014-80R19 Reaffirmation
May 1, 2015 F0014-80R15 Reaffirmation
April 1, 2010 F0014-80R10 Reaffirmation
Sept. 1, 2005 F0014-80R05 Reaffirmation
Jan. 1, 2000 F0014-80R00 Reaffirmation
Jan. 1, 2000 F0014-80R95E01 Reaffirmation