56 Chapter 6
8. Press the two tools firmly together to force the push nut as far as
possible onto the probe. The respirator material should be tightly
pinched and the respirator, sampling probe, and push nut should
be joined together as illustrated.
9. Inspect the sampling
probe to be sure it is not
plugged. Try to rotate
the probe with your
fingers. If it moves
freely, use the probe
insertion tool kit to press
the push nut firmly onto
the sampling probe and
pinch the respirator
material more tightly.
Once a sampling probe is installed into a disposable
respirator, the respirator cannot be used for
respiratory protection. PROBED RESPIRATORS
ARE TO BE USED FOR QUANTITATIVE FIT
TESTING ONLY. Discard each probed disposable
respirator after a fit test is completed
Push the Tools
Together to
Fasten the
Probes