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

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Using the PortaCount Pro to Fit Test Positive Pressure Respirators 93
significantly lower than actual. Most PAPRs have a blower motor on
the clean side of the filter. Most of these motors generate small
particles that the PortaCount
fit tester can easily measure. Likewise,
air from SCBA tanks, and from compressors, contains significant
numbers of particles. Grade D breathing air is by no means particle
free. The only way to overcome this problem is to pass the air through
a HEPA filter just before it reaches the facepiece. There is no OSHA
requirement to do this type of performance testing.
Related information located on the TSI Web site:
http://fittest.tsi.com :

TSI Application Note ITI-070, Introduction to Respirator Fit
Testing

TSI Application Note ITI-029, What You Need to
Quantitatively Fit Test Various Brands of Self-Contained
Breathing Apparatus Available in the USA

Fit test adapter list

TSI Application Note ITI-056, Respirator Fit Testing Highlights
for OSHA Respiratory Protection Standard 29CFR1910.134.