Publikuar
Describes a method for determining the speed and average gradient of black-and-white negative films used in aerial photography. Depending on the processing conditions, a single film product may have several speed and gradient values. The specifications do not apply to infrared aerial films.
PUBLISHED
ISO 7829:1986
90.93
Standard confirmed
5 qer 2021
Corrected by
ISO 7829:1986/Cor 1:2001
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