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I3A IT4.175-1980 (R1997)
- Photography (Chemicals) - Sodium Sulfate, Anhydrous (reaffirmation and redesignation of ANSI PH4.175-1980 (R1987))
- standard by International Imaging Industry Association, 08/09/1979
- Publisher: I3A
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This standard states the purity requirements and testmethods for photographic grade sodium sulfate, anhydrous.
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