Document mqJYaOozj51QZKXrGVpwq4o8Z

S4T, p 2 S -i T ryo MEASUREMENT AND CONTROL OF ASBESTOS OUST EXPOSURE 3.2.3 The work area shall have a vacuum cleanup ' system. This con be a system of hose* cnnnecled to prntrnl vacuum system. All part* of the room must have b. No bypuss devices c. No leakage of unfiltrred air daily vacuum cleanup of ledges, shelves, floors, and machines. 'CAUTION: No dry swooping shall bo porforrrtod. Air] d. Ability to empty hoppers without "creating visible emissions of particulnlc matter jlioscjs not to he used as an aid in cleanup. 1 ( e. No torn or ruptured bogs i 3.3 Aibasiot-Camanf Miring J I f. No worn or threadbare bags j 3.3.1 Asbestos cement, mortar, coalings, grout, and fj g. No improperly positioned bags [plaster shall he mixed in closed bags or other containers. | 4. RESPIRATORY EQUIPMENT 3.3.2 Any drird-out cement should be discarded. Do not altemp to rework it. 4.1 Respiratory protection shall he provided to all personnel in areas where the permissible exposure limits 3.4 Ramovcl of Asbostos Insulation may be exceeded.}Refer to S2H for general description of | equipment. 3.4.1 Insulation to be removed and discarded should be dampened prior to and during removal . whenever possible. 4.1,1 Ahwosphar* supplying respirators (Type"C" upplied-air or self-contafned), Bureau of Mines Schedule I 3.4.2 Employees engaged in dismantling asbestos {insulation shall wear atmosphere supplying respirators, I see 4,1.1. 19B, will provide complete nrotection.lThev are required ; for dismantling and spraying asliestos, or when the concentration exceeds 10 limes the TWA or ceiling limit of 2.3. 3.4.2.1 The removal of insulation, fabricated and protected to withstand repeated remove! and reinstal- , lalion for equipment maintenance or other reasons, is J not considered "dismantling." j 4.1.2 Mechanical filtsr-iyp* ratpiraiort. Bureau of Mines Schedule 2IB, will afford adequate protection in lower concentration eases, and where ambient oxygen j | 3.4.3 Scrap insulation shall be collected and dis| 1 posed of in, labeled nr.d sealed bags or other containers i and shall follow plant and local government regulations. | For cauiion labels, sec 6.0. does not fall below IB percent.IThey are required when the concentration is between 1 and 10 limes the TWA or ceiling* limit of 2.3.1 Manufacturers recommendations for their application and maintenance must be followed. I r- i --i | 3.5 Asbastos Spraying. Employees engaged in spraying asbestos for insulation or fireproofing shall wear almos- Iphere supplying respirators.Isec 4.1.) J------------------------------------------ 3.6 Exhaust ventilation and dust collection system shall be in accordance with ANSI Z9.2, Fundamentals Gov 4.2 Each employee shall be instructed in testing respira tory devices for proper fit and be required to do so prior to each use. __________ ; S. HYGIENE erning the Design and Operation of Local Exhahst Systrms. 5.1 Respirators and masks must be kepi ciean and sterilized prior to reissue. 3.6.1 Caps or dampers should be provided in each intake hose and machine connection to maintain i I capacity of the system. However, care should be taken to assure that connections are open at the equipment ! being operated. j i 3.6.2 Discharge should be into beg filters which 5.2 Special clothing, a chnnge room, and duplicate lockers must be provided for employees exposed to con centration* which exceed the ceiling limit of 2.3. This is to prevent contamination of employees' street clothes from i their work dollies. ___ 1 | . meet the following criteria: S.3 Food, gum, tobacco, oe other material pieced in a. Cnl'cn hag filter having air flow permeability not exceeding 21) cfm/r.q ft the mouth should not he kept or consumed in work areas. ..,Ipor^oos printsj In rod mast CSHA rsqulcfloni, Section 1910.93o. | T a \ DUP 0902933