MSA Abrasi-Blast, Руководство по эксплуатации

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4. If the facepiece does not remain collapsed, readjust the head harness straps and re-test.
5. If an air-tight seal cannot be obtained and leakage is not caused by facial seal leakage, check the facepiece and
breathing tube for leaks. See 8 Maintaining the Respirator .
NOTE: Locate the problem and correct before using the respirator.
WARNING!
This device may not seal properly with your face if you have a beard, large sideburns or similar physical characteristics (see
ASTM F3387 - latest edition). An improper facial seal may allow non-respirable air to leak into the facepiece, reducing or
eliminating respiratory protection. The face-to-facepiece seal must be tested before each use.
Failure to follow this warning can result in serious personal injury or death.
4.4 Section D: Respirator Fit Tests
A qualitative or quantitative respirator fit test must be carried out for each wearer of a combination air-supplied 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)
concentrations up to the maximum use listed in
Table 3 Maximum Use Concentration .
Quantitative Test
If the wearer of the respirator performs a quantitative fit test, the respirator can be worn in contaminant (particulate)
concentrations determined by the results of the test, but not to exceed the maximum use listed in
Table 3 Maximum Use
Concentration .
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.
WARNING!
The user must perform a respirator fit test (Quantitative Test or Qualitative Test) and follow all warnings and limitations
specified.
Failure to follow this warning can result in serious personal injury or death.
Respirator fit test and protection factors are explained fully in ASTM F3387.,.
Table 3 Maximum Use Concentration
Facepiece Type Maximum Use Concentration
Full facepiece 50 times the TLV for the contaminant
US Abrasi-Blast Respirator 18
4 Donning