1. Use of Drager Pump & Tubes

2. Preparation

3. Pump Leak Test  Insert unopened tube into the socket  Squeeze pump completely and release  Pump is adequately leak-proof if the end-of-stroke volume indicator has not appeared after 15 minutes  Remove tube from socket  Press button to reset counter to zero

4. Preparing the Tube  Select tube for the measurement required.  Follow instructions for use (tube).  Insert tip in opening on the lower pump plate; keep it pressed against the ceramic edge while turning it, so that the glass is scored.

5.  Pull tube over at an angle until the tip breaks off.  Discard broken tip.  Open other end of tube in the same way.  Insert tube into pump, the arrow must point towards the pump.

6. Making a Measurement  Check number of strokes required for the tube.  Put forefinger and ringfinger in the middle of the lower pump plate and squeeze completely.  Release pump.  Evaluate the result.  Remove used tube from socket.  Flush pump.

7. Carbon Dioxide Tubes  Determination of CO2 in air  Measuring range – 100 to 3000ppm  Number of strokes – 10  Time of measurement – approx. 4 mins  Colour change – white to violet

8. Carbon Dioxide (Simple Asphyxiants)

9. Acute Effects  Rapid loss of consciousness  Coma  Anoxic brain injury

10. Chronic Effects  Residual anoxic injury

11. Exposure Limits  Atmospheric oxygen should > 18% at normal barometric pressure

12. General Considerations  Asphyxiants gases are those inhalants that act predominantly by oxygen deprivation.  This may occur by simply displacing oxygen from inspired air.

13. Occupational & Environmental Exposure  One of confined space exposure (storage tanks or mines)  Product of combustion and fermentation processes.  Natural volcanic lake release

14. Thank You!