§ 221.30. Exposure reproducibility for noncertified systems.

 The coefficient of variation of exposure reproducibility may not exceed 0.10 when technique factors are held constant. This requirement shall be deemed to have been met when four exposures are made. This requirement applies when either manual techniques or automatic exposure control is used.

Authority

   The provisions of this §  221.30 issued under sections 301 and 302 of the Radiation Protection Act (35 P. S. § §  7110.301 and 7110.302); and section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); amended under sections 301 and 302 of the Radiation Protection Act (35 P. S. § §  7110.301 and 7110.302); section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20); and the Radon Certification Act (63 P. S. § §  2001—2014).

Source

   The provisions of this §  221.30 adopted October 2, 1998, effective October 3, 1998, 28 Pa.B. 4894; amended May 16, 2008, effective May 17, 2008, 38 Pa.B. 2243. Immediately preceding text appears on serial page (304498).

Cross References

   This section cited in 25 Pa. Code §  221.35a (relating to fluoroscopic X-ray systems).



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