GB/T 4193-1984
Method for measuring the density of the fine wire and ribbon of tungsten and molybdenum used in electric light sources and vacuum tubes (English Version)

Standard No.

GB/T 4193-1984

Language

Chinese, Available in English version

Release Date

1984

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 4193-1984

Scope

This method is applicable to the density determination of thin tungsten wires, molybdenum wires and thin strips used for electric vacuum devices and electric light sources with a diameter of φ20-300um.

GB/T 4193-1984 history

• 1984 GB/T 4193-1984 Method for measuring the density of the fine wire and ribbon of tungsten and molybdenum used in electric light sources and vacuum tubes