ANSI PH4.252-1980
Photographic Grade Ammonium Thiosulfate Solution

Standard No.

ANSI PH4.252-1980

Release Date

1980

Published By

American National Standards Institute （ANSI)

Latest

ANSI PH4.252-1980

Scope

Establishes criteria for the purity of photographic-grade ammonium thiosulfate solution and describes the tests to be used to determine the purity.

ANSI PH4.252-1980 history

• 1980 ANSI PH4.252-1980 Photographic Grade Ammonium Thiosulfate Solution