Spore strips for dry heat sterilization processes consist of bacteria spores inoculated on filter paper with the size of 6 x 38 mm and packaged in glassine envelopes. They are available with population106 inoculated with B. atrophaeus (# 9372). A microbiological laboratory with sterile work bench is required to aseptically transfer the spore strips into the growth medium after sterilization. The growth medium for optimized growth of B. atrophaeus spore strips is also available.
