NAC457.390. Required equipment, intensifying screens and film.

     1. The operator of a facility shall ensure that the following equipment is maintained at the facility and is properly calibrated and in good working order:

     (a) A breast phantom capable of depicting:

          (1) A mass having a width of 0.5 millimeter or less;

          (2) A calcification having a diameter of 0.24 millimeter or less; and

          (3) Fibers of nylon or similar material having a width of 0.75 millimeter or less.

     (b) For a facility using screen-film imaging:

          (1) A wire mesh contact tool designed for use in mammography with a 40 mesh copper screen.

          (2) A thermometer accurate to ± 0.5°F. A thermometer containing mercury must not be used.

          (3) A sensitometer that generates blue or green light, as appropriate to the type of film used at the facility, with a reproducibility of ± 0.04 log exposure.

          (4) A densitometer accurate to ± 0.02 optical density and having a range of 0.00 to 3.5 optical density.

     2. A facility for mammography must use intensifying screens that have been designated by the screen manufacturer as appropriate for mammography and must use film that is matched to the spectral output of the screen as specified by the manufacturer.

     (Added to NAC by Bd. of Health, eff. 1-24-92; A by R033-06, 6-28-2006)