Document yxqDg54QQvenkLJ2aqex8r2E

9 22742 Federal Register / Voi. 51, No. 119 / Friday, June 20, 1986 / Rules and Regulations r. (E)(Ac| D. Respirator Selection V(103) 1. The test subject shall be allowed to pick . the most comfortable respirator from a selection including respirators of various sizes from different manufacturers. The Note.--Periodically check and adjust the value of At. if necessary. selection shall include at least five sizes of elastomeric half facepieces, from at least two manufacturers. Appendix C to 1910.1001--Qi.uiUtntive.nnd Quantitative Fit Testing Procedures-- Mandatory 2. The selection process shall be conducted in a room separate from the fit-test chamber to prevent odor fatigue. Prior to the selection process, the test subject 6hali be shown how Qualitative Fit Test Protocols to put cn a respirator, how it should be positioned on the face, how to set strap /. koaniyl Acetate Protocol. A. Odor Threshold Screening tension and how to determine a "comfortable** respirator. A mirror shall be available to assist the subject in evaluating 1. Three t-Iiter glass jars with metal lids the fit and positioning of the respirator. This (e g. Mason or Bcll jars) are required. 2. Odor-free water (e.g. distilled or spring water) at approximately 25C shall be used for the solutions. 3. The i8cmmyi acetate (1AA) (also known as isopentyl acetate) stock solution is prepared by adding 1 cc of pure 1AA to COO cc of odor free water in a 1-liter jar and shaking for 30 seconds. This solution shall.be prepared new at least weekly. . 4. The screening test shall be conducted in a room separate from the room used for actual fit testing. The two rooms shall be well ventilated but shall not be connected to the same recirculating ventilation system. 5. The odor test solution is prepared in a second jar by placing 0.4 cc of the stock solution into 500 cc of odor free Water using a instruction may net constitute the subject s formal training on respirator use. as it is only a review. 3. The test subject should understand that the employee is being asked to select the respirator which provides the most comfortable fit. Each respirator represents a different size and shape and. if fit properly and used properly will provide adequate protection. 4. The test subject holds each facepiece up to the face and eliminates those which obviously do not give a comfortable fit. Normally, selection will begin with e half- mask and if a good fit cannot be found, the subject will be asked to test the full facepiece respirators. (A small percentage of users will not be able to wear any half-mask.) 5. The more comfortable facepieces are clean dropper or pipette. Shake for 30 noted; the most comfortable mask is donned seconds and allow to stand for two to three and worn ot least five minutes to assess minutes so that the IAA concentration above comfort. All donning and adjustments of the the liquid may reach equilibrium. This facepiece shall be performed by the test solution may be used for only one day. subject without assistance from the test 0. A test blank la prepared in a third jar by conductor or other person. Assistance in adding 500 cc of odor free water. 7*. The odor test and test blank jars shall be labelled 1 and 2 for jar identification. If the labels are put on the lids they can be periodically peeled, dried off and switched to maintain the integrity of the test. 8. The following instructions shall be typed on a card and placed on the table in front of the two test jareii.e. t and 2): 'The purpose of this test is to determine if you can smell banana oil at a low concentration. The.two bottles in front of you contain water. One of these bottles also contains a small amount of banana oil. Be sure the covers are on tight, then shake, each bottle for two seconds. Unscrew the lid of each bottle, one at a time. ' and sniff at the mouth of the bottle. Indicate to the test conductor which bottle contains .* banana oil." 9. The mixtures used in-the IAA odor detection test shall be prepared in an area separate from where the lest is performed, in order to prevent olfactory fatigue in the * subject. 10..If the testsubject is unable to correctly assessing confort can be given by discussing the points in 6 below. If the test subject is not familiar with using a particular respirator, the test subject shall be directed to don the mask several times.and to adjust the straps each time to become adept at setting proper tension on the straps. 6. Assessment of comfort shall include reviewing the following points with the test subject and allowing the test subject adequate time to determine the comfort of the respirator: Positioning of mask on nose. Room for eye protection. Room to .talk. Positioning mask on face and cheeks. 7. The following criteria shall be used to help determine the adequacy of the respirator fit: * Chin properly placed. Strap tension. Fit across nose bridge. Distance from nose to' chirk v Tendency to slip. Self-observation in mirror. - 8. The test subject shall conduct the Identify the jar containing the odor test conventional negative and positive-pressure solution, the IAA qualitative fit test may not fit checks (e.g. see ANSI Z88.2-1980). Before be used. conducting the negative- or positive-pressure 11. If the test subject correctly identifies the test the subject shall be told to "seat** the jar containing the odor test solution, the test mask by rapidly moving the head from side- subject may proceed to respirator selection to-side and up and down, while taking a few and fit testing. deep breaths. 9. The test subject is now ready for fit testing. 10. After passing the fit lest, the test subject shall be questioned again regarding the comfort of the respirator. If it has become uncomfortable, another model of respirator shat! be tried. 11. The employee shall be given the opportunity to select a different facepiece and be retested if the chosen facepiece becomes increasingly uncomfortable at any time. C. Fit Test 1. The fit test chamber shall be similar to a clear 55 ga) drum liner suspended inverted over a 2 foot diameter frame, so that the top of the chamber is about 6 inches above the test subject s head. The inside top center of the chamber shall have a small hook attached. 2. Each respirator used for the fitting and fit testing shall be equipped with organic vapor cartridges or offer protection against organic vapors. The cartridges or masks shall be changed at least weekly. 3. After selecting, donning, and properly adjusting a respirator, the test subject shall wear it to the fit testing room. This room shall be separate from the room used for odor threshold screening and respirator selection, and shall be well ventilated, as by an exhaust .fan or lab hood, to prevent general room contamination. 4. A copy of the following test exercises and rainbow passage shall be taped to the inside of the teat chamber. Test, Exercises i. Breathe normally. ii. Breathe deeply. Be certain breaths are deep and regular. in. Turn head all the way from one side to the other. Inhale on each side. Be certain movement is complete. Do not bump the respirator against the shoulders. iv. Nod head up-and-down. Inhale when head is in the full up position (looking toward ceiling). Be certain motions are complete and made about every second. Do not bump the respirator on the'chest. v. Talking. Talk aloud and slowly for several minutes. The following paragraph is 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. vii. Breathe normally. Rainbow Passage When the sunlight strikes raindrops in the air, 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. Peopte look but no one ever finds il When a man looks for something beyond reach; his friends say he is looking for the-pot of gold at the end of the rainbow. '\ ;'! . tf?.: GLEASON-000990