SKC Limited AirChek 3000 Deluxe Pump Step By Step Guide - Manual (Page 16)

Page 14 224-G1 Issue D www.skcltd.com
Usually there will be an arrow on the casing
indicating the correct way to mount the tube.
If an arrow is not present, as a general rule
the end with the smallest air space should be
towards the pump. Always ensure that the
tube is vertical when sampling.
Production of sorbent tubes is carried out
under strict conditions to ensure that the tubes
are free of contamination, and when preparing
to take a sample, care must be taken to ensure
that no contaminant is present in the vicinity
as this may contaminate the sorbent during
the flow calibration and cause an inaccurate
sample result. When breaking the ends off the tube a minimum
2mm diameter hole must be made. Use of a
purpose designed tube tip breaker (such as
SKC part no. 800-01200) is recommended
to prevent broken, wasted tubes and the
possibility of accidents due to the sharp
edges of broken tubes. Note that even when
the ends are correctly broken off they are very
sharp and care must be taken when handling
the tubes.
Always check the suitability of the sorbent for
the relevant compound before use.
To recap:
• Check suitability of the sorbent.
• Make sure there are no contaminants during preparation.
• When breaking the ends off the tube there must be a minimum 2mm diameter hole.
• Ensure that the tube is inserted the correct way round.
• Always ensure that the tube is vertical during sampling.
Gas & Vapour Sampling