Institute of Electrical and Electronics Engineers (IEEE)
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SMPTE RP 15:1997
Scope
1.1 The purpose of this practice is to specify the means to be employed in the calibration of densitometers utilized in the measurement of diffuse transmission densities. 1.2 This practice applies to densitometers utilized for the measurement of processed blackand-white photographic films and plates or cast colloidal carbon tablets.
SMPTE RP 15:1997 history
1997SMPTE RP 15:1997 RP 15:1997 - SMPTE Recommended Practice - Calibration of Densitometers Used for Black-and-White Photographic Density Measurements