12 Va. Admin. Code § 5-481-250 – Units of radioactivity.

1. One becquerel equals 1 disintegration per second (s^-1).
2. One curie equals 3.7 x 10¹⁰ disintegrations per second equals 3.7 x 10¹⁰ becquerels equals 2.22 x 10¹² disintegrations per minute.

For the purposes of this chapter, activity is expressed in the special unit of curies (Ci) or in the SI unit of becquerels (Bq), their multiples, or their disintegrations (transformations) per unit of time.

Statutory Authority

§ 32.1-229 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 22, Issue 25, eff. September 20, 2006; amended, Virginia Register Volume 24, Issue 18, eff. June 12, 2008; Volume 32, Issue 24, eff. August 25, 2016.