Section 910. Criteria for microbial inactivation

A. Inactivation is required to be demonstrated of vegetative bacteria, fungi, all viruses, parasites, and mycobacteria at a 6 Log₁₀ reduction or greater; a 6 Log₁₀ reduction is defined as a 6 decade reduction or a one millionth (0.000001) survival probability in a microbial population (i.e., a 99.9999% reduction).

B. Inactivation is required to be demonstrated of B. stearothermophilus spores or B. subtilis spores at a 4 Log₁₀ reduction or greater; a 4 Log₁₀ reduction is defined as a 4 decade reduction or a 0.0001 survival probability in a microbial population (i.e., a 99.99% reduction).

Historical Notes

Derived from VR672-40-01:1 § 11.8, eff. June 29, 1994.

Statutory Authority

Chapter 14 (§ 10.1-1400 et seq.) of Title 10.1 of the Code of Virginia.