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STERIS | Steraffirm Control Tubes

Easy-to-use, glass tubes sealed at both ends that are calibrated to respond to specific temperature and time parameters during a dry or moist heat sterilization cycle.

STERIS Steraffirm™ Control Tubes are 45 mm by 5 mm borosilicate glass tube sealed at both ends. One end is colour coded to facilitate identification of the unboxed indicator. The tube contains approximately 200 µl of heat-sensitive red liquid which changes colour from red to green at various times and temperatures that are integrated by the device. The control tubes are calibrated to respond to specific temperature and time parameters during a dry or moist heat sterilization cycle. They undergo a permanent colour change when the proper parameters are achieved at the location of each control tube. A colour guide in the instruction provides an instant visual check of the results. Since the control tubes consist of sealed vials containing heat-sensitive solution, chemicals from the indicator do not normally come into contact with adjacent items during the cycle.

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  • Features

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  • Ease of Use - Easy to interpret results with colour change from red to green.
  • Productivity - The colour change allows instant evaluation of the sterilization cycle and is permanent.
  • Efficacy - Meets critical standards as a multiple parameter indicator (ISO Type 4 for steam and ISO Type 6 for dry heat).
  • Flexibility - Several exposure time and temperature versions available to monitor common sterilization cycles.
  • Reliability - Lot number and expiration printed on each box.