Document 9O0MQa0znyQ8J3pVXVDKGeVq

ill ill Iji'(i , ill Source: Product Catalog, Asbestos Control Technologies, Inc., Maple Shade, N.|., 1985. Figure F-l. HEPA Filtered Vacuums i hi Removal of asbestos material from a 'live" concentration of asbestos fibers in the work electrical box that was oversprayed with the area. If the concentration of asbestos fibers is material when the rest of the area was _ unknown, employees should be provided . sprayed with asbestos-containing coating; with respirators that will provide protection and (2) removing asbestos-containing against the higheBt concentration of asbestos insulation from a live ateampipe. In both of fibers that can reasonably be expected.to , ... .il these situations; the preferTed:approach would be to turn off the electricity.br steam, respectively, to permit wet removal methods exist inihe work area. For most work within . an enclosure, employees should wear half-;, mask dual-filter cartridge respirators. * ", 'jl! MV to be used. However, where removal work . Disposable face mask respirators (single-use) - . !l! must be performed during working hours, i.e., should not be used to protect employers from when normal operations cannot be disrupted, exposure to asbestos fibers. ,Source: Product Catalog, Asbestos Control / Technologies, Inc, Maple Shade, ty.f,,1985. the asbestos-containing material must be removed dry. Immediate bagging js.then the: . only method of minimizing the amount of : Disposable Coveralls. Employees involved, in asbestos removal operations should be provided with disposable impervious . .. Figure F-2. Portable Exhaust Ventilation System with HEPA Filter Welling Agents. Wetting-agents airborne asbestos generated. Airless Sprayer. Airless 'sprayers are used to apply amended water.to*asbestos- containing materials. Airless sprayers allow . .coveralls that are equipped with head.and foot covers. Such coveralls are. typically, made.of Tyvek.* The coverall has a zipper front and elastic wrists and ankles. . . (surfactants) are added to water (which is then called amended water) and used to soak asbestos-containing materials; amended . the amended water to be applied in a fine spray that minimizes the release of asbestos . fibers by reducing the impact of-the spray on. . Signs and Labels. Before work .begins, a supply of signs to demarcate th$ entrance to the work area Bhould be obtained. Signs are . I water penetrates more effectively than plain the material to be removed. Airless sprayers available that have, the wording required by water and permits more thorough soaking of . the asbestos-containing materials. Wetting are inexpensive and readily available.' Portable Shower. Unless the site has the final OSHA standard. The required labels are also commercially available as press-on i 7 the asbestos-containing material reduces the . number of.fibers that will break free and become airborne when the asbestos- available a permanent shower facility that is contiguous to the removal area, a portable ' shower system is riccesssary to permit labels and pre-printed on the 6-mil ' polyethylene plastic bags used to dispose of dsbeslos^ohtaining waste material. ; i j V containing material is handled or otherwise employees to clean themselves after . Preparing the Work Area disturbed. Asbestos-containingmaterials exposure to asbestos and to remove'any i - should be thoroughly soaked before removal is attempted; the dislodged material should asbestos contamination from their hair and bodies. Taking a shower prevents employees Preparation for constructing negativepressure enclosures should begin with.the feel spongy to the touch. Wetting agents are - from leaving the work area with asbestos on removal of all movable objects from the work generally prepared by mixing 1 to.3 ounces of ' their clothes and thus prevents the spread of area, e g., desks, chairs, rugs, and light . wetting agent to 5 gallons of water. .1 asbestos contamination to areas oulside-the . fixtures,-to ensure that these objects do not One type of asbestos, amosite. is relatively asbestos removal area. Thi9 measure also become contaminated with asbestos. When resistant to soaking, either with plain or. protects members of the families of asbestos movable objects are contaminated or are amended water. The work practices of choice workers from possible exposure to asbestos. suspected of being contaminated, they should when-working with amosite containing . Showers should be supplied with warm water be vacuumed with a HEPA vacuum.and material ere to soak the material as much as and a drain. A shower water filtration system cleaned with amended water, unless they are possible and then to bag it for disposal to filter asbestos fibers from the shower made of material that will be damaged by the immediately after removal, so that the water is recommended. Portable shower units wetting agent; wiping with plain water is material has no time to dry and be ground. are readily'available, inexpensive, and easy recommend in those cases where amended- . into smaller particles that are more likely to to install and transport. water will damage the object. Before the liberate airborne asbestos. . In a very limited number of situations, it Respirators. Employees involved in asbestos removal work begins, objects that asbestos removal projects should be provided .! may not be possible to wet the asbestoscontaining material before removing it. Examples of such rare situations are: (1) with appropriate NIOSH-approved respirators. Selection of the appropriate respirator should be based on the 1 Mention of trade names or commercial products docs not constitute endorsement or - recommendation for use. GLEASON-001025