TSI Incorporated PORTACOUNT PRO+ 8038, Руководство по эксплуатации и обслуживанию

Страница: 43 / 107

Conducting a Fit Test with the PortaCount Pro Respirator Fit Tester 37
Exercise Name Description
Head up and down Breathe normally while slowly alternating
between looking up at the ceiling and down at
the floor. Each up and down cycle should
take several seconds.
Talking out loud Read a prepared paragraph (like the Rainbow
Passage located in
Appendix G of this
manual) or count out loud to simulate the
workplace.
Grimace Grimace by smiling and/or frowning to create
a leak in the respirator face seal. This
exercise will often result in a failed fit factor,
which is why the OSHA standard allows you
to exclude that fit factor when computing the
overall fit factor. When performing the
grimace, you are intentionally creating a
break in the face seal in order to see if the
mask re-seals itself afterwards. Successful
re-sealing is proven by achieving a passing fit
factor on the next exercise.
Notes: The OSHA protocol includes special
provisions for the grimace exercise. It is
allowed to be 15 seconds long and the
resulting fit factor may be discarded
(excluded) before calculating the overall fit
factor. This is allowed because the grimace
exercise is done to intentionally break the
face seal in order to make sure the mask
reseats itself before the next exercise.
Bend and touch
toes Bend at the waist as if you were touching
your toes while breathing normally.
Normal breathing Remain still and breathe as usual.
16. PortaCount Pro Respirator Fit Tester alerts you when the fit test
is complete. The PortaCount Pro fit tester beeps three times and
calculates and displays the overall fit factor for the set of
exercises. The upper section of the dialog box displays either a
pass or fail status. Pass or fail is determined by comparing the
overall fit factor to the Fit Factor Pass Level. The overall fit factor
is displayed at the lower left.