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Federal Register / Vol. 51, No. 119 / Friday, June 20, 1988 / Rules and Regulations 22767 7. The fit teat solution is prepared by 17. If hair growth or apparel interfere with towards the faceseal area of the test subject. adding 83 grams of sodium saccharin to 100 - a satisfactory fit. then they shall be altered or The person conducting the test shall begin cc of warm water. removed so as to eliminate interference and with the tube at least 12 inches from the ' 6. Asbefore, the test subject.shall breathe allow a satisfactory fit. If a satisfactory fit ia facepiece and gradually move to within one with mouth open and tongue extended. still not attained, the test subject must use a inch, moving around the whole perimeter of 9. The nebulizer is inserted into the hole in the front of the enclosure and the fit test solution is sprayed into the enclosure using the same technique as for the taste threshold screening and the same number of squeezes required to elicit a taste response In the screening. (See B8 through DlO above.) 10. After generation of the aerosol read (he following instructions to the test subject. The test subject shall perform the exercises for one minute each. i. Breathe normally. 11. Breathe deeply. Be certain breaths are deep and regular. iii. Turn head all the way from one side to the other. Be certain movement is complete. Inhale on each side. Do not bump the respirator against the shoulders. iv. Nod head up-and-down. Be certain motions are complete. Inhale when head is in the full up position (when looking toward the ceiling). Do not bump the respirator on the chest. v. Talking. Talk aloud and slowly.for. positive-pressure respirator such as powered air-purifying respirators, supplied air respirator, or self-contained breathing apparatus. 18. if a test subject exhibits difficulty in breathing during the tests, she or he shall be referred.to a.physician trained in respirator diseases or pulmonary medicine to determine whether the test subject can wear a respirator while performing her or his duties. 19. Qualitative fit testing shall be repeated at least every six months. 20. tn addition, because.the sealing of the respirator may be affected, qualitative fit testing shull be repeated immediately when the test subject has a: . (1) Weight-change.of 20 pounds or more, (2) Significant facial scarring in the area of the facepiece seal, (3) Significant dental changes; i.e.; multiple extractions without prothesis, or acquiring dentures. (4) Reconstructive or cosmetic surgery, or (5) Any other condition that may interfere the mask. 8. The test subject shall be instructed to do. the following exercises while the respirator (s being challenged by the smoke. Each exercise shall be performed for one minute. i. Breathe normally. ii. Breathe deeply. Be certain breaths are deep and regular. iii. Turn head all the way from one side to the other. Be certain movement is complete. Inhale on each side. Do not bump the respirator against the shoulders. iv. Nod head up-and-down. Be certain motions are complete and made every second. Inhale when head is in the full up position (looking toward ceiling). Do not bump the respirator again9t the chest. v. Talking. Talk aloud and slowly for several minutes. The following paragraph Is called the Rainbow Passage. Reading it will result in n wide range of facial movements, and thus be useful to satisfy this requirement. Alternative passages which serve the same several minutes. The following paragraph >9 .called the Rainbow Passage. Reading it will result in a wide range of facial movements, and thus be useful to satisfy this requirement. Alternative passages which.serve the same purpose may also be used. vi. jogging in place. yii. Breathe normally. Rainbow Passage When the sunlight strikes raindrops in the dir. they act like.a prism and form a rainbow. The rainbow is a division of white light into many beautiful colors. These take the shape of a long round arch, with its path high above, and its two ends apparently beyond the horizon. There is. according to legend, a boiling pot of gold at one end. People look,' but no one everfinds it. When a man looks for something beyond hiaTeach'his friends say he is looking for the pot of gold at the end of-the rainbow. 11. At the beginning of each exercise.* the aerosol concentration shall.be replenished using ohe-halfthe number of squeezes as initially described in C9. 12. The test subject Shall indicate to the test conductor if at any. time duririg the fit test the taste of saccharin is detected^ 13. If the saccKannTs dctectcd the fit is : deefted unsatisfactory and a different . respirator shall be tried. 14. At'least twofocepieces shall be . selected by the IAA test protocol. The test ' subject shall be given the opportunity to wear them for one week to choose the one which is more comfortable to wear. / 15. SttecessfuLcpriipietipn of the test' with facepiece sealing. D. Recordkeeping. A summary of all test results shall be maintained in each office for 3 years. The summary shall include: (1) Name of test subject. (2) Date of testing. |3) Name of test conductor. (4) Respirators selected (indicate manufacturer, model, size and approval number). (5) Testing agent. III. Irritant Fume Protocol A. Respirator selection. Respirators shall be selected-as described in section IB above, except.that each respirator shall.be equipped with a combination oWiigh-efficiency andacid-gas ; cartridges. 6. Fit test. 1. The test subject shall be allowed to smell a weak concentration of the irritant smoke to familiarize the subject with the characteristic odor. , 2. The test subject shattproperly don the respirator selected as above, and wear, it for at Ieast'10 minutes before starling the fit test. , 3, The test conductor shall review this . protocol.with (he test subject before-testing. . 4. 'Hie teat subject shall perform the .. . conventional positive pressure and negative .pressure,fit checksjsee ANSI Z88.2 1980).. Failure of either check shall be cause to selecl an alternate respirator. '5. Break both ends of a ventilation smoke tube coniaining-stannic oxychloride,.such as - the MSA pail #5645,-or equivalent. Attach a short length of tubing to one end of the smoke purpose may also be used. Rainbow Passage When the sunlight strikes raindrops in the uir, they act like a prism and form a rainbow. The rainbow is a division of white light intq many beautiful colors. These take the shape of a long round arch, with its path high above, and its two end apparently beyond the horizon. There is. according to legend, a boiling pot of gold at one end. People look, but no one ever finds it. When a man looks for something beyond his reach, his friends say he is looking for the pot of gold at the end of the rainbow. vi. jogging in Place. vii. Breathe normally. 9. The test subjectshall indicate to the test conductor If the irritant smoke is detected. If smoke ia detected, the test conductor shall stop the test. In this case, the tested respirator is rejected and another respirator shall be selected. 10. Each test subject passing the smoke test (i.e., without detecting the smoke) shalhbe given a sensitivity check of smoke from the same tube to determine if the test subject reacts to the smoke. Failure to evoke a response shall void the fit test 11; Steps B4. B9. BlO of this fit test protocol shall be performed in alocation with exhaust ventilation sufficient to prevent general . contamination of the testing area by the test * agent9. 12.Atieasttwofacepiece8 8haU.be selected by the IAA test protocol. The test subject shall be given the opportunity to wear protocol shall allow the use of the half mask ' tude. Attach the: other end of the smoke tube them for one week to choose the one which ia tested respirator in contaminated - to a low pressure air pump set to deliver 200 more comfortable to wear. atmospheres up to .10 times the PEL of " milliliters per minute. 13. Respirators successfully tested.by the ' asbestosi lh other words this protocol may be 6: Advise the test subject that the smoke ' protocol mn'y be used in contaminated used to assign protection factora no higher can be irritating to the eyes and instruct the - atmospheres up<to ten.times the PEL of than ten. subject to keep the eyes closed while the test asbestos. 16. The test shall not be conducted if there isperformed. 14. The test shall not be conducted if there is any hair growth between the skin and the 7. The test conductor shall direct the is any hair growth between the skin and the facepiece scaling surface.1 stream of irritant smoke from, the tube facepiece sealing surface. GLEASON-001015