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sklademVydáno: 1999-04-15
BS ISO 9236-3:1999
Photography. Sensitometry of screen/film systems for medical radiography Determination of sensitometric curve shape, speed and average gradient for mammography
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| Označení normy: | BS ISO 9236-3:1999 |
| Počet stran: | 24 |
| Vydáno: | 1999-04-15 |
| ISBN: | 0 580 32016 2 |
| Status: | Standard |
Popis
BS ISO 9236-3:1999
This standard BS ISO 9236-3:1999 Photography. Sensitometry of screen/film systems for medical radiography is classified in these ICS categories:
- 37.040.25 Radiographic films
- 11.040.50 Radiographic equipment
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.