TSI Incorporated portacount pro 8030, Руководство по эксплуатации и обслуживанию

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Appendix F
Using the P
ORTA
C
OUNT
®
P
RO
Respirator Fit
Tester to Fit Test Positive Pressure
Respirators
On January 8, 1998, OSHA released the long-awaited revision to the
Respiratory Protection Standard 29CFR1910.134. It replaces the standard
with the same name and number that was released in 1971. This new
revision has far reaching impact on a large number of existing OSHA
standards in that it replaces certain provisions related to respirator use.
One of the new requirements is that OSHA now requires all tight-fitting
respirator facepieces to be fit tested annually. This includes air-supplied and
positive-pressure respirators such as Powered Air Purifying Respirators
(PAPR), airline respirators, and Self Contained Breathing Apparatus
(SCBA). With few exceptions, these respirator styles were previously
exempted from OSHA's fit testing requirements. For detailed information
regarding the new standard and to download your own copy, see TSI
Application Note ITI-056 Respirator Fit Testing Highlights for OSHA
Respiratory Protection Standard 29CFR1910.134 on our website
36H
http://fittest.tsi.com .
Self Contained Breathing Apparatus (SCBA) are respirators that supply
breathing air from a backpack mounted tank. The most common application
for SCBA is fire fighting. There are other types of positive-pressure
respirators also, including air-line and recirculating respirators.
Powered Air Purifying Respirators (PAPRs) are a special class of respirator
that utilizes a battery operated blower motor to pump air into the mask
through an air-purifying cartridge. The blower/filter assembly is usually
either belt mounted or fastened to the front of the facepiece.
The OSHA fit testing requirement is only for tight-fitting masks. Tight
fitting respirators utilize a facepiece similar to the facepiece on a
conventional negative-pressure air-purifying respirator with filter cartridges.
In fact, many respirator manufacturers use the identical facepiece for
negative and positive-pressure respirators. Tight-fitting masks form a tight
seal around the wearer's face.