MSA Abrasi-Blast Series, Инструкция по эксплуатации

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TAL 201 (L) Rev. 1 - 818366
9
D. Respirator Fitting Tests
A qualitative or quantitative respirator
fitting test must be carried out for
each wearer of a combination air-sup-
plied and air purifying type respirator.
The test shall be performed in the air-
purifying mode of operation and is
necessary in order to determine the
amount of protection the respirator
will provide while being used in the
air-purifying mode.
Qualitative Test:
If the wearer of the respirator passes
a qualitative fit test, the respirator can
be worn in contaminant (particulate
and/or organic vapor) concentrations
up to the maximum use concentration
listed below.
Quantitative Test
If the wearer of the respirator performs
a quantitative fit test, the respirator
can be worn in contaminant (particu-
late and/or organic vapor) concentra-
tions determined by the results of the
test, but not to exceed the maximum
use concentration listed below.
In addition to the above limitations, the
wearer must not exceed the limitations
listed in the applicable NIOSH Approval
or any maximum use concentration
controlled by OSHA regulations.
The user assumes all risks of death
or serious bodily injury which can
result if a fitting test is not per-
formed, or if the respirator limita-
tions are not followed.
Respirator fitting test and protection
factors are explained fully in ANSI
Z88.2, “Practices for Respiratory
Protection,” published by the American
National Standards Institute.
E. Final Hookup:
1. If wearing a protective cap, see
Step 2. Otherwise, proceed as fol-
lows:
a. Pull the respirator collar down
around your neck. The collar is
designed to stretch over your
shirt or coverall collar to help
seal out dust.
b. Pull the back of the hood down
in place on your shoulders. On
the waist-length model, attach
the waiststrap loosely to mini-
mize restrictions to head
movement.
2. If wearing a protective cap, you
may wish to either remove and
reverse the suspension so the bill
of the cap is in the back or wear it
in the standard manner with the
bill in front.
Note: A protective cap cannot be
used with the duck cloth hood.
a. Unfasten the Velcro strip on
the collar. Don the cap with the
bill to the rear or front.
b. Pull the collar down around
your neck and fasten the
Velcro strip on the collar. The
collar should be over your shirt
or coverall to help seal out
dust.
c. Pull the back of the hood down
in place on your shoulders. On
the waist-length model, attach
the waiststrap loosely to mini-
mize restrictions to head
movement.
3. Turn the air-supply on.
4. Supplied-Air Type Respirators:
Connect the breathing tube cou-
pling nut to the valve connector.
Hand-tighten. Pull on the air-sup-
ply hose to test the connection.
5. Combination Type Respirators:
Connect the socket assembly to
the Duo-Flo valve when it is
desired to switch from the air-puri-
fying mode to the supplied-air
mode of operation.
USING THE RESPIRATOR
Do not use an Abrasi-Blast respira-
tor if air contaminants are unknown,
immediately dangerous to life or
health, or you cannot escape with-
out respiratory protective equip-
ment. The supplied-air Abrasi-Blast
respirator configuration does not
afford respiratory protection if the
air supply fails.
Do not use the Duo-Flo Combination
configuration of the Abrasi-Blast
respirator in atmospheres contain-
ing less than 19.5 percent oxygen, in
atmospheres exceeding the limits
for which the filter or canister will
provide protection, or against organ-
ic vapors with poor warning proper-
ties or those which generate high
Donning/Using the Respirator
Facepiece Type Maximum Use Concentration
Half-mask facepiece 10 times the TLV for the contaminant
Full facepiece 100 times the TLV for the contaminant
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