ANSI PH4.231-1982
Photographic Grade Sodium Metaborate Octahydrate

Standard No.

ANSI PH4.231-1982

Release Date

1982

Published By

American National Standards Institute （ANSI)

Latest

ANSI PH4.231-1982

Scope

This specification establishes criteria for the purity of photographic grade sodium metaborate octahydrate and describes the tests to be used to determine the purity.

ANSI PH4.231-1982 history

• 1982 ANSI PH4.231-1982 Photographic Grade Sodium Metaborate Octahydrate