ASTM F140-98(2008) PDF
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Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
standard by ASTM International, 04/01/2008
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 Test Method F 218 (Section 1.1).
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.
Product Details
- Published:
- 04/01/2008
- Number of Pages:
- 6
- File Size:
- 1 file , 130 KB
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
