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<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal">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?
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<span style="font-size:13.5pt;font-family:"Helvetica",sans-serif;color:#222222">4. Modified ambient aerosol condensation nuclei counter (CNC) quantitative fit testing protocol for full-facepiece and half-mask elastomeric respirators.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;background:white"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333">(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.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;background:white"><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333">(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.<o:p></o:p></span></p>
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<span style="font-size:13.5pt;font-family:"Helvetica",sans-serif;color:#222222">Table A-1-- Modified Ambient Aerosal CNC Quantitative Fit Testing Protocol for Full Facepiece and Half-Mask Elastomeric Respirators<o:p></o:p></span></p>
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Exercises<sup><span style="font-size:8.0pt">1</span></sup><o:p></o:p></p>
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Exercise procedure<o:p></o:p></p>
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Measurement procedure<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">Bending Over ...........<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">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 bottom<sup><span style="font-size:8.0pt">2</span></sup>.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">A 20 second ambient sample, followed by a 30 second mask sample.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">Jogging-in-Place .......<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">The test subject shall jog in place comfortably for 30 seconds ...........................<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">A 30 second mask sample.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">Head Side-to-Side ....<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">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 extreme<sup><span style="font-size:8.0pt">2</span></sup>.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">A 30 second mask sample.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">Head Up-and-Down<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">The test subject shall stand in place, slowly moving his/her head up and down for 39 seconds and inhale 2 times at each extreme<sup><span style="font-size:8.0pt">2</span></sup>.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:15.0pt">A 30 second mask sample followed by a 9 second ambient sample.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:7.5pt;background:white"><sup><span style="font-size:8.0pt;font-family:"Helvetica",sans-serif;color:#333333">1</span></sup><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333">Exercises are
listed in the order in which they are to be administered.<br>
</span><sup><span style="font-size:8.0pt;font-family:"Helvetica",sans-serif;color:#333333">2</span></sup><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333">It is optional for test subjects to take additional breaths at other times
during this exercise.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Jonah Bosworth Morgan
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">South Texas Project Nuclear Operating Company
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">12090 FM 521 Wadsworth, Tx 77483<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Supervisor Radiation Protection
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Office: (361)972-4045<o:p></o:p></span></i></b></p>
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