BS ISO 3620:1994 : Implementation of ISO 3620 : 1994 Photography — Specifications for aluminium potassium sulfateProcessing chemicals —
Printed version of this standard is available at Library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail.
This International Standard establishes criteria for the purity of photographic-grade aluminium potassium sulfate dodecahydrate, AlK(SO4)2.12H2O, and specifies the tests to be used to determine the purity.