9.0 Qualitative w88 mobile Test Requirements
Qualitative w88 mobile testing is limited to protection factors of 10 (i.e. ten times the PEL). Although full face respirators and PAPRs may be able to provide greater protection, protection factors can only be verified to a maximum of 10 when using qualitative w88 mobile testing.
Qualitative w88 mobile testing must be repeated at least annually. In addition, qualitative w88 mobile testing shall be repeated immediately if the test subject has:
9.0.a
A weight change of 20 lbs. or more.
9.0.b.
Significant facial scarring in the area w88 mobile face piece seal.
9.0.c.
Significant dental changes, i.e., multiple extractions without prosthesis, or dentures.
9.0.d.
Reconstructive or cosmetic surgery.
9.0.e.
Or any other condition that may interfere with w88 mobile seal.
9.0.1.
The test subject shall be shown how to put on a respirator, proper positioning on the face, and how to set strap tension. Respirator straps should not be over tightened for testing and should be adjusted by the wearer to give a reasonably comfortable w88 mobile typical of normal use.
9.0.2.
The test subject shall conduct negative and positive pressure user seal checks until an acceptable w88 mobile is obtained with the selected respirator.
9.0.3.
Prior to performing a qualitative w88 mobile test, the test subject shall be given complete instructions regarding the test procedures and shall wear the face piece for at least five minutes.
9.1 BitrexTM (Denatonium Benzoate) Solution Aerosol Qualitative w88 mobile Test Protocol
9.1.a w88 mobile
The Bitrex taste threshold screening, performed without wearing a respirator, is intended to determine whether the individual being tested can detect w88 mobile Bitrex.
9.1.a.(1)
During threshold screening as well as during w88 mobile testing, subjects shall wear an enclosure about the head and shoulders that is approximately 12 inches (30.5 cm) in diameter by 14 inches (35.6 cm) tall. The front portion of the enclosure shall be clear from the respirator and allow free movement of the head when a respirator is worn. An enclosure substantially similar to the 3M hood assembly, parts # FT 14 and # FT 15 combined, is adequate.
9.1.a.(2)
The w88 mobile enclosure shall have a /4\ inch (1.9 cm) hole in front of the w88 mobile subject's nose and mouth area to accommodate the nebulizer nozzle.
9.1.a.(3)
The w88 mobile subject shall don the w88 mobile enclosure. Throughout the threshold screening w88 mobile, the w88 mobile subject shall breathe through his or her slightly open mouth with tongue extended. The subject is instructed to report when he/she detects a bitter taste
9.1.a.(4)
Using a DeVilbiss Model 40 Inhalation Medication Nebulizer or equivalent, the test conductor shall spray the Threshold Check Solution into the enclosure. This Nebulizer shall be clearly marked to distinguish it from the w88 mobile test solution nebulizer.
9.1.a.(5)
The Threshold Check Solution is prepared by adding 13.5 milligrams of w88 mobile to 100 ml of 5% salt (NaCl) solution in distilled water.
9.1.a.(6)
To produce the aerosol, the w88 mobile bulb is firmly squeezed so that the bulb collapses completely, and is then released and allowed to fully expand.
9.1.a.(7)
An initial ten squeezes are repeated rapidly and then the w88 mobile subject is asked whether the Bitrex can be tasted. If the w88 mobile subject reports tasting the bitter taste during the ten squeezes, the screening w88 mobile is completed. The taste threshold is noted as ten regardless of the number of squeezes actually completed.
9.1.a.(8)
If the first response is negative, ten more squeezes are repeated rapidly and the w88 mobile subject is again asked whether the Bitrex is tasted. If the w88 mobile subject reports tasting the bitter taste during the second ten squeezes, the screening w88 mobile is completed. The taste threshold is noted as twenty regardless of the number of squeezes actually completed.
9.1.a.(9)
If the second response is negative, ten more squeezes are repeated rapidly and the w88 mobile subject is again asked whether the Bitrex is tasted. If the w88 mobile subject reports tasting the bitter taste during the third set of ten squeezes, the screening w88 mobile is completed. The taste threshold is noted as thirty regardless of the number of squeezes actually completed.
9.1.a.(10)
The w88 mobile conductor will take note of the number of squeezes required to solicit a taste response.
9.1.a.(11)
If the Bitrex is not tasted after 30 squeezes (step 10), the test subject is unable to taste Bitrex and may not perform the Bitrex w88 mobile test.
9.1.a.(12)
If a taste response is elicited, the test subject shall be asked to take note of the taste for reference in the w88 mobile test.
9.1.a.(13)
Correct use of the w88 mobile means that approximately 1 ml of liquid is used at a time in the w88 mobile body.
9.1.a.(14)
The nebulizer w88 mobile thoroughly rinsed in water, shaken to dry, and refilled at least each morning and afternoon or at least every four hours.
9.1.b Bitrex Solution Aerosol w88 mobile Test Procedure
9.1.b.(1)
The w88 mobile subject may not eat, drink (except plain water), smoke, or chew gum for 15 minutes before the w88 mobile.
9.1.b.(2)
The w88 mobile test uses the same enclosure as that described in 4. (a) above.
9.1.b.(3)
The w88 mobile subject shall don the enclosure while wearing the respirator selected according to section I. A. of this appendix. The respirator shall be properly adjusted and equipped with any type particulate filter(s).
9.1.b.(4)
A second DeVilbiss Model 40 Inhalation Medication Nebulizer or equivalent is used to spray the w88 mobile test solution into the enclosure. This nebulizer shall be clearly marked to distinguish it from the screening test solution nebulizer.
9.1.b.(5)
The w88 mobile test solution is prepared by adding 337.5 mg of Bitrex to 200 ml of a 5% salt (NaCl) solution in warm water.
9.1.b.(6)
As before, the w88 mobile subject shall breathe through his or her slightly open mouth with tongue extended, and be instructed to report if he/she tastes the bitter taste of Bitrex.
9.1.b.(7)
The nebulizer is inserted into the hole in the front of the enclosure and an initial concentration of the w88 mobile test solution is sprayed into the enclosure using the same number of squeezes (either 10, 20 or 30 squeezes) based on the number of squeezes required to elicit a taste response as noted during the screening test.
9.1.b.(8)
After generating the aerosol, the w88 mobile subject shall be instructed to perform the exercises in section I. A. 14. of this appendix.
9.1.b.(9)
Every 30 seconds the aerosol concentration w88 mobile replenished using one half the number of squeezes used initially (e.g., 5, 10 or 15).
9.1.b.(10)
The test subject shall indicate to the test conductor if at any time during the w88 mobile test the taste of Bitrex is detected. If the test subject does not report tasting the Bitrex, the test is passed.
9.1.b.(11)
If the taste of Bitrex is detected, the w88 mobile is deemed unsatisfactory and the test is failed. A different respirator shall be tried and the entire test procedure is repeated (taste threshold screening and w88 mobile testing).