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ASTM F140-98(2003)
Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
STANDARD published on 10.10.1998
The information about the standard:
Designation standards: ASTM F140-98(2003)
Note: WITHDRAWN
Publication date standards: 10.10.1998
SKU: NS-50158
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM F140-98(2003) :
Keywords:
expansion mismatch, glass-metal seals, ICS Number Code 21.140 (Seals, glands)
Additional information
| 1. Scope | ||||||||
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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. |
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| 2. Referenced Documents | ||||||||
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