ASTM F140-98(2013)
Standard Practice for
- Standard No.
- ASTM F140-98(2013)
- Release Date
- 1998
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM F140-98(2020)
- Latest
- ASTM F140-98(2020)
- Scope
4.1 The term “reference” as employed in this practice implies that either the glass or 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 for Standards and Technology (NIST), or a secondary reference material whose sealing characteristics have been determined by seals to a standard reference material.4 Until standard reference materials for seals are established by the NIST, secondary reference materials may be agreed upon between manufacturer and purchaser.
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 F218 (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.
ASTM F140-98(2013) Referenced Document
- ASTM F105 Standard Specification for Type 58 Borosilicate Sealing Glass*， 2019-11-01 Update
- ASTM F218 Standard Test Method for Analyzing Stress in Glass
- ASTM F47
- ASTM F79 Standard Specification for Type 101 Sealing Glass*， 2019-11-01 Update
ASTM F140-98(2013) history
- 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
