Use of Drager Pump Tubes Preparation Pump Leak

Use of Drager Pump & Tubes

Preparation

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

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.

Preparing the Tube ® 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.

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.

Carbon Dioxide Tubes ® Determination of CO 2 in air ® Measuring range – 100 to 3000 ppm ® Number of strokes – 10 ® Time of measurement – approx. 4 mins ® Colour change – white to violet

Carbon Dioxide (Simple Asphyxiants)

Acute Effects ® Rapid loss of consciousness ® Coma ® Anoxic brain injury

Chronic Effects ® Residual anoxic injury

Exposure Limits ® Atmospheric oxygen should > 18% at normal barometric pressure

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

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