ANSI PH4.137-1984
Photography (Chemicals) - 4-(N-Ethyl-N-2-Methanesulfonylamino- ethyl)-2-Methylphenylenediamine Sesquisulfate Monohydrate

Standard No.

ANSI PH4.137-1984

Release Date

1984

Published By

American National Standards Institute （ANSI)

Latest

ANSI PH4.137-1984

Scope

Estabishes criteria for the purity of photographic-grade 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylene-diamine sesquisulfate monohydrate and describes the tests to be used to determine the purity.

ANSI PH4.137-1984 history

• 1984 ANSI PH4.137-1984 Photography (Chemicals) - 4-(N-Ethyl-N-2-Methanesulfonylamino- ethyl)-2-Methylphenylenediamine Sesquisulfate Monohydrate