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I3A IT4.230-1982 (R1998)
- Photography (Chemicals) - Sodium Tetraborate Pentahydrate and Sodium Tetraborate Decahydrate (reaffirmation and redesignation of ANSI PH4.230-1982 (R1987))
- standard by International Imaging Industry Association, 02/26/1982
- Publisher: I3A
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Establishes criteria for the purity of photographic-grade sodium tetraborate decahydrate and specifies the test methods to be used to determine the purity.