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I3A IT4.155-1981 (R2001)
- Photography (Chemicals) - Aluminum Sulfate Solution (reaffirmation and redesignation of ANSI/NAPM IT4.155-1981 (R1996))
- standard by International Imaging Industry Association, 01/16/1981
- Publisher: I3A
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Establishes the purity requirements and test methods for photographic-grade aluminum sulfate solution.