Standard Practice for Making and Testing Reference Glass-Metal Bead-Seal

Importancia y uso:

4.1 The term reference as employed in this practice implies that both the glass and 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 of Standards and Technology, or a secondary reference material whose sealing characteristics have been determined by seals to a standard reference material (see NIST Special Publication 260).4 Until standard reference materials for seals are established by the NIST, secondary reference materials may be agreed upon between producer and user.5

Subcomité:

C14.04

Volúmen:

15.02

Número ICS:

29.080.20 (Bushings)

Palabras clave:

glass-to-metal sealing; optical retardation; stress; thermal expansion mismatch;