ASTM F140-98(2020) PDF

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 applicable to determining the degree of mismatch of thermal expansion (or contraction). Tests are in accordance with Test Method F218, Subsection 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 glassmetal combinations having widely divergent thermal expansion (or contraction) properties. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM F140-98(2020) Referenced Document

ASTM F105 Standard Specification for Type 58 Borosilicate Sealing Glass
ASTM F15 Standard Specification for Iron-Nickel-Cobalt Sealing Alloy
ASTM F218 Standard Test Method for Analyzing Stress in Glass
ASTM F256 Standard Specification for Chromium-Iron Sealing Alloys with 18 or 26 Percent Chromium
ASTM F30 Standard Specification for Iron-Nickel Sealing Alloys
ASTM F31 Standard Specification for 42% Nickel-6% Chromium-Iron Sealing Alloy
ASTM F47
ASTM F79 Standard Specification for Type 101 Sealing Glass

2020 ASTM F140-98(2020) Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
1998 ASTM F140-98(2013) Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
1998 ASTM F140-98(2008) Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
1998 ASTM F140-98(2003) Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
1998 ASTM F140-98 Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods