BIOLOGICAL INDICATOR BT20 TEST FOR STERILIZATION CONTROL
The ampoule of the BT Test indicator is made of polypropylene. Its glass vial includes a culture medium with a pH indicator that is safe for inoculated microorganisms. The test strip is impregnated with a known population of "Geobacillus Stearothermophilus"
Control of vacuum assisted steam sterilization cycles a
121-134º C and for steam sterilization cycles with
air displacement by gravity at 121-134 º C.
Random polypropylene copolymer tube, 44.0 mm high, 8.5
mm outside diameter.
Wall 0.5 mm thick.
Polypropylene lid: 13.0 mm high, 10.5 mm external diameter.
Wall 1.0 mm thick.
Glass blister: 35.0 to 38.0 mm high. External diameter: 6.5
mm. Wall 0.2 - 0.3 mm thick.
Culture medium 0.5 - 0.7 ml, purple color.
Cover filter: medical grade paper 60 g/m2, 16.0 mm in diameter.
Filter paper 8.0 mm in diameter and 160 g/m2.
105 or 106 spores of Geobacillus stearothermophilus ATCC 7953 by
Positive spore growth result (process failure
sterilization): the culture medium turns yellow. Incubation at 60º C
for 24 hrs (maximum).
D-value: not less than 1.5 minutes at 121º C. Another D value at 134º C is obtained for the calculation of the Z.
value. Z-value: not less than 6º C.
- Trademark: INCOTRADING
- 30 units
- Manufacturer's reference: 107BT2030