NC 04-31-1969
Determination of tungsteno in steels and cast iron

Standard No.

NC 04-31-1969

Release Date

1969

Published By

CU-NC

Latest

NC 04-31-1969

Scope

This standard establis es the test methods for the photometric and gravimetric determination of the tungsten content in all types of ferrous materials (pig iron, cast iron and steel).

NC 04-31-1969 history

• 1969 NC 04-31-1969 Determination of tungsteno in steels and cast iron