BS ISO 9236-1:2004

This standard BS ISO 9236-1:2004 Photography. Sensitometry of screen/film systems for medical radiography is classified in these ICS categories:

• 11.040.50 Radiographic equipment
• 37.040.25 Radiographic films

This part of ISO 9236 specifies methods for the determination of the sensitometric curve shape, average gradient and speed of a single sample of a screen/film/filmholder/processing system for medical radiography. It is not applicable to special radiographic applications such as mammography, dental radiography and direct-exposing medical radiographic systems (see for example ISO 5799^[3]).

The filmholder can be any means that ensures close screen/film contact and prevents the film from being exposed to ambient light. In particular, the filmholder can be a light-tight vacuum bag, as often used in the laboratory, or a radiographic cassette as used in medical radiography.