D.C. Mun. Regs. tit. 17, r. 17-2919

Current through Register Vol. 71, No. 50, December 13, 2024

Rule 17-2919 - RADIOLOGICAL EQUIPMENT AND FACILITIES

2919.1

An animal facility shall have the capability and proof of use of either in-house or consultant services for obtaining diagnostic quality radiographs.

2919.2

Radiograph equipment shall conform to the following requirements:

(a) The protective tube housing shall be of diagnostic type;

(b) Diaphragms or cones shall be provided for collimating the useful beam to the area of clinical interest and shall provide the same degree of protection as is required of the housing;

(c) The total filtration permanently in the useful beam shall not be less than one-half of one millimeter (0.5 mm) aluminum equivalent for machines operating up to fifty kilovolt potential (50 kVp), one and one-half millimeter (1.5mm) aluminum equivalent for machines operating between fifty to seventy kilovolt potential (50 to 70 kVp), and two and one-half millimeters (2.5 mm) aluminum equivalent for machines operating above seventy kilovolt potential (70 kVp);

(d) A device shall be provided to terminate the exposure after a preset time of exposure; and

(e) A dead-man type of exposure switch shall be provided, together with an electrical cord of sufficient length, so that the operator can stand out of the useful beam and at least six feet (6') from the animal during all X-ray exposures. This paragraph does not apply to field radiograph procedures.

2919.3

The dark room shall be maintained in a clean and orderly manner and shall be of adequate size for the proper development of radiographs.

2919.4

Equipment shall be maintained in good operating condition for the proper development of radiographs.

D.C. Mun. Regs. tit. 17, r. 17-2919

Final Rulemaking published at 35 DCR 6630, 6643 (September 2, 1988)