UNIT 121-1957
Blue spectrum (used in color pictures)

Standard No.

UNIT 121-1957

Release Date

1957

Published By

UY-UNIT

Latest

UNIT 121-1957

Scope

This standard refers to ultramarine blue that is used in the preparation of paints, enamels and the like.

UNIT 121-1957 history

• 1957 UNIT 121-1957 Blue spectrum (used in color pictures)