Photographie — Sensitométrie des ensembles film/écran pour la radiographie médicale — Partie 3: Détermination de la forme de la courbe sensitométrique, de la sensibilité et du contraste moyen pour la mammographie

This part of ISO 9236 specifies methods for determination of the sensitometric curve shape, average gradient and

speed of a single sample of a screen/film/filmholder/processing system in mammography.

The filmholder may be any means which ensures close screen/film contact and prevents the film from being

exposed to ambient light. In particular, the filmholder may be a light-tight vacuum bag, as often used in the

laboratory, or a radiographic cassette as used in mammography.

NOTE — Hereafter, screen/film/filmholder combinations will be referred to as "combinations", and will be referred to as

"systems" when the processing is included.