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3.3 Taking a personal sample
Figure 5: Taking a personal sample.
•
Remove both storage caps from the pre-conditioned TD tube using the CapLok tool.
•
Place the pump, tubing, appropriate adapter and sample tube on the worker as shown (
), making sure
that the sampling flow direction arrow on the TD tube is pointing in the correct direction (towards the
pump). The tube can be held in position with a penclip.
•
Use a pointed instrument such as a ballpoint pen to turn on the pump (
).
•
When sampling is completed, use a pointed instrument such as a ballpoint pen to turn off the pump (
).
Record the sample data.
•
Re-cap the sample tube (finger-tight-plus-a-quarter-turn) with the CapLok tool.
•
When the pump is turned off after a sample run, the total run time in minutes (to the nearest
0.01 minute) is displayed. To calculate the total air volume sampled, use the following formula:
