ANSI PH4.234-1986
Photography (Chemicals)-Trisodium Phosphate, Dodecahydrate

Standard No.

ANSI PH4.234-1986

Release Date

1986

Published By

American National Standards Institute （ANSI)

Latest

ANSI PH4.234-1986

Scope

This standard establishes criteria for purity of photographic-grade trisodium phosphate, dodecahydrate and describes the tests to be used to determine the purity.

ANSI PH4.234-1986 history

• 1986 ANSI PH4.234-1986 Photography (Chemicals)-Trisodium Phosphate, Dodecahydrate