What is the proper way to take a wipe sample?

How you take your wipe sample is critical to the data from the wipe being of any use to you. NIOSH has set up wipe sample protocols that, when followed, will return the valuable information you re-quire. The wetting agent on the wipe used to collect the samples; the techniques of “up/down” and “side to side” swiping of the wipe, and the measured area over which the wipe is taken are all critical factors. For the NIOSH method of wipe sampling, refer to ‘Sampling Guidelines for Wipes‘.