Photographic Activity Test (PAT)

Article number:
ISO 18916
DAkkS - Deutsche Akkreditierungsstelle D-PL-17375-01-00

The Photographic Activity Test (PAT) tests the suitability of archival materials for the preservation of silver halide-based photographs. The standard describes a test procedure in which material samples are brought into close contact with special detector materials at 70 °C and 86 % relative humidity over a longer period of time.

The metrological evaluation of the detector materials before and after incubation then provides a statement as to whether a material is suitable as an archival material for silver halide photographs or not.

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