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BSI PD ISO/TR 18931:2001

Imaging materials. Recommendations for humidity measurement and control
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BSI PD ISO/TR 18931:2001

Imaging materials. Recommendations for humidity measurement and control

PUBLISH DATE 2001
PAGES 18
BSI PD ISO/TR 18931:2001

This Technical Report discusses devices in photographic standardization that are used as hygrometers and humidistats in the measurement and control of relative humidity (RH) in test chambers and storage areas.

Special attention is given to situations where a photographic standard specifies controlling relative humidity to ± 2 % RH or better.

Electric hygrometers are recommended for their precision, low cost, and accuracy when properly calibrated.

Calibration can be done either by the vendor or in-house by a dew-point measurement.

Where the budget permits, dew-point combined with ambient temperature measurements (converted to relative humidity) may be the only sensor system.

SDO BSI: British Standards Institution
Document Number ISO/TR 18931
Publication Date Aug. 15, 2001
Language en - English
Page Count
Revision Level
Supercedes
Committee CPW/42
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