ASTM-F140 › Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This practice covers the preparation and testing of reference glass-metal butt seals of two general configurations: one applicable to determining stress in the glass and the other to determining the degree of mismatch of thermal expansion (or contraction). Tests are in accordance with Method F218 (Section 2).
1.2 This practice applies to all glass and metal (or alloy) combinations normally sealed together in the production of electronic components. It should not be attempted with glass-metal combinations having widely divergent thermal expansion (or contraction) properties.
Keywords
expansion mismatch; glass-metal seals
To find similar documents by ASTM Volume:
15.02 (Glass; Ceramic Whitewares)
To find similar documents by classification:
21.140 (Seals, glands Seals for pipe and hose assemblies, see 23.040.80)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-F0140-98R20
Revision Level
1998 R20 EDITION
Status
Current
Modification Type
Revision
Publication Date
Sept. 23, 2020
Document Type
Practice
Page Count
7 pages
Committee Number
C14.04