Specifies a method of determining the specific gravity (relative density) of solutions used in photographic processing. Measurement is made by a hydrometer capable of measuring density to 0,001 units, after the test portion has reached thermal equilibrium with a water-bath (at 25 °C).
Status: PublishedPublication date: 1992-12
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 42 Photography
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