[Global] Fit Testing

[Morgan, Jonah]

All,
Does anyone use the Modified ambient aerosol condensation nuclei counter (CNC) quantitative fit testing protocol for full-facepiece and half-mask elastomeric respirators, per appendix A of 29CFR1910.134?

4. Modified ambient aerosol condensation nuclei counter (CNC) quantitative fit testing protocol for full-facepiece and half-mask elastomeric respirators.
(a) When administering this protocol to test subjects, employers shall comply with the requirements specified in Part I.C.3 of this appendix (ambient aerosol condensation nuclei counter (CNC) quantitative fit testing protocol), except they shall use the test exercises described below in paragraph (b) of this protocol instead of the test exercises specified in section I.C.3(a)(6) of this appendix.
(b) Employers shall ensure that each test subject being fit tested using this protocol follows the exercise and duration procedures, including the order of administration, described in Table A-1 of this appendix.
Table A-1-- Modified Ambient Aerosal CNC Quantitative Fit Testing Protocol for Full Facepiece and Half-Mask Elastomeric Respirators
Exercises1
Exercise procedure
Measurement procedure
Bending Over ...........
The test subject shall bend at the waist, as if going to touch his/her toes for 50 seconds and inhale 2 times at the bottom2.
A 20 second ambient sample, followed by a 30 second mask sample.
Jogging-in-Place .......
The test subject shall jog in place comfortably for 30 seconds ...........................
A 30 second mask sample.
Head Side-to-Side ....
The test subject shall stand in place, slowly turning his/her head from side to side for 30 seconds and inhale 2 times at each extreme2.
A 30 second mask sample.
Head Up-and-Down
The test subject shall stand in place, slowly moving his/her head up and down for 39 seconds and inhale 2 times at each extreme2.
A 30 second mask sample followed by a 9 second ambient sample.
1Exercises are listed in the order in which they are to be administered.
2It is optional for test subjects to take additional breaths at other times during this exercise.



Jonah Bosworth Morgan
South Texas Project Nuclear Operating Company
12090 FM 521 Wadsworth, Tx 77483
Supervisor Radiation Protection
Office: (361)972-4045
Pager : 2167
Mobile: (979)571-5006

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