Bowie Dick Test Sheet for Towels
11140-1, Class 2
Blue to Black with no air leak. Blue area in centre with the presence of air
21.59cm x 27.94cm (8.5" x 11")
3.5 minutes at 134ºC (273.2ºF)
Safety Data: Material Safety Data Sheet
Steri-Pak LF Bowie-Dick Test Sheets are designed for daily monitoring of pre-vacuum steam sterilizers to detect air leaks, inadequate steam penetration and vacuum pump failures.
Use for daily monitoring of pre-vacuum steam sterilizers operating at 134°C to detect air leaks, inadequate steam penetration and vacuum pump failures. Use as a Bowie-Dick towel pack assembled at the health centre as described in ISO 11140-3.
The Test Sheet is placed inside a towel pack in the sterilizer at the most difficult to sterilize location and run through a sterilization cycle for 3.5 minutes at 134°C.
If no appreciable air is present in the sterilizer chamber after vacuums are drawn, the steam will penetrate to the middle of the test pack and turn the indicator sheet a uniform black colour. If a small amount of air is present, sufficient to cause a two-degree temperature drop, the air will migrate to the middle of the test pack turning the centre of the sheet a bluish colour rather than a uniform black.
- Improved ink chemistry aids interpretation
Blue colour remains is air leak is present.
- High Standards
- Environmentally Safe
Improved chemistry is both lead free and toxic heavy metals free
- Permanent colour change
Can be used as a permanent record when stored away from light sources