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I3A IT4.22-1997
- Photography (Processing) - Channel-Type Hangers for Processing Sheet Films and Plates - Specifications (revision and redesignation of ANSI PH4.22-1976 (R1987))
- standard by International Imaging Industry Association, 01/06/1997
- Publisher: I3A
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Sets forth the requirements for channel-type hangers used in the processing of single-sheet films and plates and simultaneous processing of multiple sheet films and plates.