2Biological Indicator for Steam Sterilization[S]. Paper Strip. United States Pharmacopeia, 24th ed.,2000.232-233.
3Biological Indicators〈1035〉[S]. United States Pharmacopeia. 24th ed.,2000.2009-2010.
4Richard TW. Parametric release of most heat terminally sterilized products[A]. Fundamentals of thermal sterilization processes[C]. Basel: PDA Training and Research Institute International Congress, 1998. Appendix 4,7-10.