Crosstex manufactures Biological Indicators (BIs) for use in monitoring Ethylene Oxide (EO) sterilization processes. Biological Indicator Spore Strips for monitoring EO processes consist of: •An inoculated carrier, 7 mm x 38 mm spore strip, of Bacillus atrophaeus (Cell Line 9372) •Primary packaging of a glassine pouch •Products are accompanied by a Certificate of Analysis and are certified with population, purity, and resistance characteristics (D value, survival and kill where applicable) Strip Dimensions 7 mm x 38 mm; 24 month shelf life.