Radiation-Emitting Products

What optical density (or range) should the facility use for the screen-film contact test and what is the criteria for determining pass or fail for a cassette?

Policy Guidance Help System logo

The final regulations do not specify an optical density, range, or a pass-fail criteria because there has not been a consensus of expert opinion on these items. If a facility follows the same criteria as in the interim regulations, namely a range of 0.70 to 0.80 for the density and fails a cassette for any poor contact area exceeding one centimeter, it would be acceptable. However, this does not preclude the facility from using other appropriate criteria.

Back to Screen Film Contact - Semiannual Quality Control Tests

Page Last Updated: 08/13/2014
Note: If you need help accessing information in different file formats, see Instructions for Downloading Viewers and Players.
Language Assistance Available: Español | 繁體中文 | Tiếng Việt | 한국어 | Tagalog | Русский | العربية | Kreyòl Ayisyen | Français | Polski | Português | Italiano | Deutsch | 日本語 | فارسی | English