ASTM F79-69(2019)

Standard Specification for Type 101 Sealing Glass

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STANDARD published on 1.11.2019

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The information about the standard:

Designation standards: ASTM F79-69(2019)
Publication date standards: 1.11.2019
SKU: NS-975180
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Seals, glands

Annotation of standard text ASTM F79-69(2019) :

This specification covers Type 101 sealing glass for use in electronic applications. The glass shall have a finish that ensures smooth, even surfaces and freedom from cracks, checks, bubbles, and other laws of a character detrimental to the strength or life of the component or device for which its use is intended. Different test methods shall be performed in order to determine the following properties of the sealing glass: softening point, annealing point, thermal expansion coefficient, contraction coefficient, and bead seal.

Keywords:

glass, sealing ,, ICS Number Code 21.140 (Seals, glands)

Additional information

1. Scope

1.1 This specification covers Type 101 sealing glass for use in electronic applications.

Note 1: This specification is primarily intended to consider glass as most generally used, this is, glass in its transparent form as normally encountered in fabricating electronic devices. X1.3 lists sealing metals and alloys that are compatible with this glass. Type 101 glass in other forms such as powdered, crushed, sintered, fibrous, etc. are excluded. The requirements of this specification, as applied to these forms, must be established in the raw glass prior to its conversion.

1.2 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.

2. Referenced Documents

C336-71(2020)	Standard Test Method for Annealing Point and Strain Point of Glass by Fiber Elongation
C338-93(2019)	Standard Test Method for Softening Point of Glass
C598-93(2019)	Standard Test Method for Annealing Point and Strain Point of Glass by Beam Bending
D150-22	Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D257-14(2021)e1	Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E228-22	Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
F14-80(2019)	Standard Practice for Making and Testing Reference Glass-Metal Bead-Seal
F140-98(2020)	Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
F144-80(2019)	Standard Practice for Making Reference Glass-Metal Sandwich Seal and Testing for Expansion Characteristics by Polarimetric Methods

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