Document jmvK989nvd41Z9Xr2NDoz5422

22776 Federal Register / Vol. 51, No. 119 /. Friday, June 20, 1986 / Rules and Regulations Af Appendix E (o 1926.58--Interpretation and Classification of Chest Roentgenograms-- Mandatory (a) Chest roentgenograms shall be interpreted; and classified in accordance with a professionally accepted classification system and recorded on a Roontgenographic Interpretation Form..'Form CSO/NIOSM {MJ 2.8. , \. (b) Roentgenograms shall be interpreted and;classified only by a B-readcr. n board eligible/certiBed radiologist. or an experienced physician with known expertise in pneumoconioses.: (c) Alj interpreters, whenever interpreting chest roentgenograms made under this section, shall have immediately available for reference a complete set of the ILO-U/C International Classification of Radiographs for Pneumoconioses, 1960. - an enclosure around the removal site, the standard requires employers to provide hygiene facilities that ensure that their asbestos contaminated employees do not leave the work site with asbestos on their persons or clothing: the construction of these facilities is also described below. The steps in theprocoss of preparing the asbestos removal site,-building the enclosure, constructing hygiene facilities, removing the asbestos-containing material, and restoring the site include: (1) Planning the removal project; - (2) Procuring the necessary materials and equipment; (3) Preparing thc-work area; (4) Removing the ashcstos-containing material: (5) Cleaning the Work area; and (6) Disposing of the asbestos-containing waste. Appendix F to 1926.50--Work Practices and Engineering Controls for Major.Asbestos Planning the Removal Project Removal, Renovation, and Demolition The planning of an asbestos removal Operations--Non-Mandatory project is critical to completing the project safely and cost-effectively. A written This is a non-mandatory appendix asbestos removal plan should be prepared designed to provide guidelines to assist that describes the equipment .and procedures employers ini complying with the that will be usedthroughout the project The requirements of 29 GFR 1920.50. Specifically, * asbestos abatement plan will aid not only in this appendix describes'the equipment, executing the project but also in complying methods,.and procedures*that should be used with the.reporting requirements of the USEPA in major asbestos removal projects asbestos regulations (40 CFR 61, Subpart M). conducted to abate s recognized asbestos which cat) for specific information such as n hazard or in preparation for building renovation or demolition. These.projccls require the construction of negative-pressure temporary enclosures to contain the asbestos . material and to prevent the .exposure of bystanders and other employees at the. worksite!.Paragraph'(e)(6) of the standard description of control methods anc! control equipment to be used and the disposal sites the contractor proposes to use to'dispose of the asbestos containing materials. The asbestos abatement plan should contain the following information: required that:". . . (W|heneyer feasible, the. A physical description of the work area; employer shall.establish negative-pressure . . A description ofthc.approximate amount enclosures before commencing asbestos- . bf .material to be removed;- removal, demolition, or renovation . operations." Employers, should also be aware . that, whenconducting asbestos removal projects, they may beTequircd under, the . National Emissions Standards for Hazardous A schedule-for turning off and sealing existing ventilation systems; Personnel hygiene procedures: . Labeling procedures; . Air PpIlUtantaTNESHAPS), 40 CFR Part 61, ' ;A description of personal protective . Subpart-M,.or EPA regulations, under the . equipment and clothing to be worn by Clear Water Act. : , employees; ; . Construction of a negative-pressure . . enclosure Is a simple but.time-consuming process that requires carcTuI preparation ;and execution; howbver, if the procedures below are followed, contractors should be assured of achieving a temporary:bamcade that will protect employees and others oiitsicle the ' enclosure from exposure to. asbestos and : minimize tb th'e extent possible the exposure of asbestos workers inside the baiticr as well. . ;A description of Ihe local exhaust . ycntilatifan systems to be used;. . A descriptiotvof work practices to be observed by employees: . A description of Ihcmethods to be used lo.remove the asbestos-containing material; The wetting agent to.be used; .A description of the sealant to be used at the end of the project; An air monitoring plan; The equipment and materials required to construct these barriers are readily available and-easilyinstalled and used. In addition to A dcscriptlon of the method to be used to transport waste-material; and . The location of the dump site. Materials and Equipment Necessary for Asbestos Removal Although individual asbestos removal projects vary in terms of the equipment required to accomplish the removal of the material, some equipment and materials are common to most asbestos removal operations. Equipment and materials that should be available at the beginning of each project are; (1) rolls of polyethylene sheeting: (2) rolls of gray duct tape or dear plastic tape; (3| IIEPA filtered vacuum(s); (4) HEPA- * filtered portable ventilation system(s): |5) a wetting agent; (G) an airless sprayer; (7) a portable shower unit; (0) appropriate respirators: (9) disposable coveralls: (10) sighs and labels: (11) pro-printed disposal bags: and (12) a manometer or pressure gauge. Rolls of Polyethylene Plastic and Tape. Rolls of polyethylene plastic (6 mil in thickness) should be available lo.construcl the asbestos removal enclosure and to seat windows, doors, ventilaiion systems.- wall penetrations, and ceilings and floors in the work area. Cray duct tape or clear plastic tape should be used to seal the edges of the plastic and to seal any holes in the plastic enclosure. Polyethylene plastic sheeting can be purchased in rolls up to 12-20 feet in width and up to 100 feet in length. HEPA-Fihered Vacuum. A HKPA-filterod vacuum is essential for cleaning the work area after the asbestos has been removed. . . Such vacuums are designed to be used with a HF.PA (High Efficiency Particulate Air) filler, which is capable of removing 99.97 percent of the asbestos particles from the air. Various sizes and capacities of HEPA vacuums ore available. One manufacturer. Nilfisk of America. Inc.*, produces three models that range in capacity from 5.25 gallons (o 17 gallons (see Figure F-l). All of these models are portable, and all have long hoses capable of reaching out-of-the-way places, such as. areas above ceiling tiles, behind pipes, etc. Exhaust Air Filtration System. A' portable ventilation system i9 necessary to create a . negative pressure within the asbestos removal enclosure. Such units are equipped . with.a HEPA filter and ore designed to exhaust and ciean the air inside the enclosure before exhausling.it to the outside of the enclosure (See Figure F-2). Systems are available from several manufacturers. One supplier. Micro-Trap. Inc., * has 1 wo ventilation units that range in cupocily from. OOO.cubic feet per minute (CFM) to 1,700 CFM. According to the manufacturer's literature, Micro-Trap * units filter particles . of 0.3micron in size with an efficiency of . . 99.99 percent. The number and capacity of units required to ventilate an enclosure dcperid.on the size of the area to be ventilated. . 0 Mention of trade names or commercial ' products does not constituto endorsement or recommendation for use. f- 1 M f * ft }p. GLEASON-OOI024