Reference number
ISO 17531:2002
ISO 17531:2002
© ISO 2024
International Standard
ISO 17531:2002
Photography — Processing chemicals — Specifications for 4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate
Edition 1
2002-06
2002-06
ISO 17531:2002
30730
Published
(Edition 1, 2002)
This publication was last reviewed and confirmed in 2021.
Therefore this version remains current.
Abstract
This International Standard establishes criteria for the purity of photographic-grade 4-(N-ethyl-N-2-methanesulfonyl-aminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate and specifies the test methods to be used to determine the purity.