Pre-sampling calibration of equipment (if active sampling)
Preparation of sampling media
Sample identification
Issue to the Wearer
Prepare the sampler – instruction given by laboratory
Relevant data on data sheet
Instruction to wearer
Start sampler and note the time on data sheet
Instruction to Wearer
Sample duration – as specified in program (field sampling strategy, mentioned above)
Breaks / lunch – should be worn through breaks / lunch, but local circumstances may dictate
Note incidents during sample period; if possible, maintain a log sheet
RPE – If any Respiratory Protective Equipment (RPE) is worn during the sample period, the personal monitor should be left on and running (outside the RPE) and full details of the type of RPE worn recorded on the data sheet.
Retrieve Sampler – stop the sampler and note the time on the data sheet
Post-sampling calibration of equipment (if active sampling)
Calculation of average flow rate (the sample is considered invalid if there is a +/- 5% difference between the pre- and post-sampling calibration flow rates)
Calculation of total air volume sampled (in liters)
Completion of sample form
Return of sampler and blank to lab within a “reasonable time” (1-2 days after sampling).