The advantages of vacuum blasting are that most of the waste material and abrasive is collected at the site of generation and is therefore not transported to the breathing zone of the worker, and that there may be little or no need for containment. Sides The material in this chapter will help OSHA compliance officers and safety and health professionals apply their resources to the industrial-hygiene problems associated with lead exposures in the construction industry. The abrasive material abrades the surface of the structure, exposing the steel substrate underneath. /ExtGState << These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. No lead-contaminated items are permitted to enter the clean change area. /Font << Occupational Safety & Health Administration. a. DNA and RNA DHHS, April 1992. The resulting product is air abrasive water. After completion, the sides of the containment (tarpaulins and framing) are dismantled so that the structure can be moved forward to the next section of the bridge to be worked on. 0000016984 00000 n DHHS NIOSH Publication HETA 90-070-2181. 0000005087 00000 n /Rotate 0 Mineral wool insulation manufactured before about 1970 has been found to have lead particles. Knoy, T. 1990. 0000015403 00000 n It provides needed support for ensuring that proper work practices are followed by workers. stream endobj For work operations where the sources of lead dust generation are numerous and widely distributed (e.g., open abrasive blasting conducted in containment structures), dilution ventilation may be the best control. In addition, the abrasive classifier must be extremely efficient in removing lead dust, to prevent it from being reintroduced into the containment and combining with the paint to increase worker exposures. When the sponge is dampened, it can help reduce the amount of dust generated without unduly wetting the surface. Large air-moving devices may be connected to the enclosed containment structure to exhaust dust-laden air and create a negative pressure with respect to the ambient atmosphere. Because the abrasive exposes the bare substrate, inhibitors such as sodium nitrate or amines are often added to the water to prevent flash rusting. If device is moved Labeling, For low-risk compounding with a 12-hour beyond Engineering controls are the first line of defense in protecting workers from hazardous exposures. The risk of silicosis is high among workers exposed to abrasive blasting with silica-containing media, and this hazard is difficult to control. 1992. Other members of the household may then be exposed to harmful amounts of lead. In certain applications such as abatement in buildings, wet methods can significantly reduce the generation of lead-containing dust in the work area. Performed under contract to the Office of Regulatory Analysis, OSHA. /CropBox [0.0 0.0 504.0 720.0] and through the supply HEPA filters located Good housekeeping involves a regular schedule of housekeeping activities to remove accumulations of lead dust and lead-containing debris. 0000017213 00000 n J-9-F-1-0011. Strip back all lead-based paint for a distance of at least 4 inches in all directions from the area of heat application. 0000020092 00000 n These cookies may also be used for advertising purposes by these third parties. Mechanical scrapers, a vacuum system, or pressurized water are then used to remove the product and the stripped paint. 0000013048 00000 n Containment primary engineering controls AKA a hood, BSC, CACI, etc define containment primary engineering control (C-PEC) a ventilated device designed to minimize HD exposure to environment and personnel when directly handling HDs C-SEC stands for. Where feasible, lead-containing debris and contaminated items accumulated for disposal should be wet-misted before handling. Chemical stripping of old paint coatings is performed by applying solvent- or caustic-based strippers to the surface, either by hand or spray gun. use date, For Hazardous Compounding: Hand sanding can also produce excessive dust. 0000007199 00000 n The OSHA construction standard for lead also requires that a competent person perform frequent and regular inspections of job sites, materials, and equipment. c. DNA and proteins How many vitamin tablets containing 0.40mg0.40 \mathrm{~mg}0.40mg of vitamin A would be lethal to an adult? Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. Study with Quizlet and memorize flashcards containing terms like PEC and SEC are designed to maintain _____ _____ of compounding areas, laminar airflow workbenches (LAFW), biological safety cabinets (BSC), compounding aseptic isolators (CAI), and compounding aseptic containment isolators (CACI) are examples of _____, PECs are designed to maintain ISO Class _____ air quality in the compounding . The melting point of the filler metals is usually quite low (<600F) and the activity does not generate significant concentrations of metal fumes. Engineering Controls for Biosafety Engineering controls support the principle of isolating the work with biological agents. Engineering controls may be implemented at the source of the hazard, along its path, or at the worker. 0000001456 00000 n Dynamic Conditions relating to clean area classification under conditions of normal production. Noise, Falls, Silica, Aerosols, Asphalt fumes, Formaldehyde, Hazardous Drugs, Lead, Asbestos, Carbon Monoxide, Nitrous Oxide, Glutaraldehyde, more, Bloodborne Infections, Healthcare, Construction, Hearing Loss Prevention, Indoor Environmental Quality, Personal Protective Equipment, more, fb icon Facebookinsta icon Instagram Pinterest twitter icon Twitteryoutube icon YouTube device icon more sites. Finally, because only the paint is removed, the surface may need to be "brush-off" blasted with an abrasive to produce a rough surface to facilitate adhesion of the new coating. Additional exposures to lead fumes can occur during repair and maintenance operations in which pipe joints are heated to melt the lead caulking and are then pulled apart. Lead burning, a process by which virgin or alloyed lead is melted with a torch or otherwise fused to another lead object, is typically performed in maintenance operations on electrostatic precipitators or during the installation of lead shot, bricks, or sheets in the walls or floors of health-care x-ray units or industrial sites. Soldering and brazing operations present similar health hazards (airborne lead fumes) but to a different degree. Engineering controls include: Sharps disposal containers; Needle containment devices; Other safety devices that prevent handlers from getting cut or poked /T1_6 12 0 R 0000006516 00000 n The nozzle itself is in a nozzle adapter, which in turn connects to a nozzle holder. [. Engineering controls means constructed containment barriers or systems that control one or more of the following: downward migration, infiltration, or seepage of surface runoff or rain; or natural leaching migration of contaminants through the subsurface over time. 1993. When recabling elevator ropes, it is necessary to secure the ends of the wire ropes in the baskets of thimble rods (sockets) at each end of the cable to keep the multi strand cable from unwinding. For most interior or exterior construction painting projects, workers employ conventional compressed-air spray equipment. The PEC is first cleaned with a germicidal detergent. The hierarchy of controls has five levels of actions to reduce or remove hazards. All information these cookies collect is aggregated and therefore anonymous. According to industry sources, lead slag is no longer used in the manufacture of mineral wool, although lead can be present as a trace impurity (CONSAD 1993). Due to its inherent properties, lead is used extensively for shielding from radiation sources. Saving Lives, Protecting People, The National Institute for Occupational Safety and Health (NIOSH), Reducing material handling injuries with engineering controls, Preventing Deaths in Manure Storage Facilities Through Proper Ventilation, Silica Hazards from Engineered Stone Countertops, Best Practices: Engineering Controls, Work Practices, and Exposure Monitoring for Occupational Exposures to Diacetyl and 2,3-Pentanedione, OSHA/NIOSH Hazard Alert: Methylene Chloride Hazards for Bathtub Refinishers, Preventing Hazardous Noise and Hearing Loss during Project Design and Operation, Reducing Musculoskeletal Disorders among Airport Baggage Screeners and Handlers, Reducing Hazardous Dust Exposure When Dowel Drilling in Concrete, Reducing Hazardous Dust Exposure When Cutting Fiber-Cement Siding, National Institute for Occupational Safety and Health, NIOSH Directory of Engineering Controls Resources, Hazards Where Engineering Controls are Effective, U.S. Department of Health & Human Services. Plant Engineering, March issue. 0000004789 00000 n specific ISO class, Location for activities such as: The concentric cylinders are $50 \mathrm{~cm}$ long. Any material that is being considered as a substitute for a lead-based paint should be evaluated to ensure that it does not contain equally or more toxic components (e.g., cadmium or chromates). -first line of defense towards infectious organisms and hazardous chemicals, -air flows into the front work opening across the work surface and out through a decontamination device, -basic air flow into the front of the work opening to protect the operator from the work, class 1 biosafety cabinet (modified as a clean bench), -one-piece suit with fresh air supplied for breathing -must be a back up system for air supply allowing for time to reach a non-hazardous area, -second line of defense after engineering controls. This restricts the dispersion of the abrasive and thus the size of the area that can be cleaned. Steel Structures Painting Council, Lead Paint Removal: Meeting the Challenge, SSPC 91-05:117-130. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests. Because some substitute materials may have their own unique hazards, the MSDS for the substitute material should be consulted before it is used. Elevators receive new wire ropes (i.e., cables) every 10 to 15 years on average. Welding and cutting activities that potentially involve exposure to lead can occur as part of a number of construction projects such as highway/railroad bridge rehabilitation (including elevated mass-transit lines), demolition, and indoor and outdoor industrial facility maintenance and renovation. >> Examples of the kinds of engineering controls and work practices that can be implemented to protect blasting workers are presented below. If encapsulation is used over a surface covered with intact paint, little dust is generated and cleanup and waste disposal problems are therefore minimized. Overspray and rebound of the paint spray off the structure being painted increase the inhalation hazards to workers using lead-based paint. The exposure ranges assigned to the different categories of tasks are based on data collected by OSHA and other sources including two advisory groups. Six inches from back of LAFW To the extent possible, replacing lead chromate with zinc. Three types of engineering controls are defined in <800>: 1. Dust generation, debris generation, and the type of containment necessary in ultrahigh-pressure water jetting are comparable to those in high-pressure water jetting. PPE can be effective, but only when workers use it correctly and consistently. K. Manual Scraping and Sanding of Lead-Based Paints, L. Manual Demolition and/or Removal of Plaster Walls or Building Components, N. Chemical Stripping of Lead-Based Paint. Wet methods include misting of peeling paint with water before scraping, and sanding and misting of debris prior to sweeping or vacuuming. /MediaBox [0.0 0.0 504.0 720.0] Structures that are typically cleaned by open abrasive blasting are bridges, tanks and towers, locks and dams, pipe racks, pressure vessels and process equipment, supporting steel, and metal buildings. The use of this method is limited by the ability of the shears to reach the cutting area. 0000013559 00000 n Abrasive also may escape the vacuum head if the brush attachments do not seal completely around the substrate; poor seals may be caused by operator fatigue, poor work practices or irregular surfaces and edges. These controls focus on the source of the hazard, unlike other types of controls that generally focus on the employee exposed to the hazard. 5 0 obj A recent NIOSH publication (NIOSH 1992) points out the dangers of "take-home" lead contamination. Work surface. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page. Lead-Related Construction Tasks and Their Presumed 8-Hour TWA Exposure Levels, Severe Storm and Flood Recovery Assistance, OSHA Technical Manual (OTM) - Section V: Chapter 3. The pellets impinge on the surface and then sublime, leaving only paint debris to be cleaned up. Prime coat painting must follow blasting immediately to prevent surface rust from forming. is, in fact, the velocity profile. Exposures may result from the release of dust and paint-chip particles when these items are removed with a prybar or cut with a saw. These systems require that the gun and shielding gas flow rates be carefully balanced to maintain weld quality and still provide good exhaust flow. The NIOSHEngineering Controls Database has examples of published engineering control research findings. When employee exposure is above the PEL, the lead standard requires the employer to provide, and ensure that workers use, adequate shower facilities (where feasible), hand-washing facilities, clean change areas, and separate noncontaminated eating areas. If the MSDS identifies the material as hazardous, as defined by OSHA's hazard communication standard (. b. DNA only If you need to go back and make any changes, you can always do so by going to our Privacy Policy page. >> Elimination removes the hazard at the source. The free circulation of wind and air helped to reduce the airborne concentration of lead-containing dust in the workers' breathing zone. The brushes prevent dispersion of the abrasive and debris as they rebound from the steel surface. The containment/ventilation system should be designed to optimize the flow of ventilation air past the worker(s), thereby reducing the airborne concentration of lead and increasing visibility. The process of heating the lead and applying it as a liquid presents an opportunity for exposure to lead-oxide fumes. Encapsulation is particularly attractive as a control method when large surfaces such as walls, ceilings, and floors are involved because encapsulation requires little containment or cleanup and does not threaten the environment. HWn}G2h^Ei3#3KIM$fx[59Sx`KbwS.|@|]X/eM)QDuY1b^{0&\GH8 &0?6)@wr7vwAL'h_gOQTT#tcgG$. /Filter /FlateDecode They include sharps disposal containers, self-sheathing needles, and safer medical devices, such as sharps with engineered sharps-injury protection and needleless systems. Until an employer performs an employee-exposure assessment and determines the magnitude of the exposures actually occurring during the lead-related activity, the employer must assume that employees performing that task are exposed to the lead concentrations indicated in Appendix V:3-1. The construction activities identified range from those such as abrasive blasting and welding, cutting, and burning, where exposures to lead are often high, to encapsulating lead-based paint or using lead pots, where exposures are generally low. High levels of airborne total dust and lead dust can be generated by breaking lead-painted plaster into small pieces. /ExtGState << The containment must be constructed to collect water rather than to control dust emissions. Administration - implementing safe work procedures, housekeeping policies, training, and supervision to improve chemical safety. Health Hazard Evaluation Report. A fume-extractor gun that removes fumes from the point of generation (Figure V:3-3) is an alternative to an exhaust hood for gas-shielded arc-welding processes. This may include: PPE is equipment worn to minimize exposure to hazards. NIOSH. << 0000015971 00000 n CDC twenty four seven. Personal hygiene is also an important element in any program to protect workers from exposure to lead dust. If feasible, design the facility, equipment, or process to remove the hazard and/or substitute something that is not hazardous or is less hazardous. We take your privacy seriously. The PEC must be cleaned then disinfected daily. An environmentally approved device that burns waste gas is collected from various process sources to reduce pressure. Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. Hand washing You will be subject to the destination website's privacy policy when you follow the link. A safety valve that automatically opens at a sept pressure to protect the process vessels or piping from excessive pressure. The workers included in this group are those who are secondarily involved with other activities described above. Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. In pharmaceutical compounding, the term "primary engineering control" usually refers to a device used to reduce the number of airborne particles and microorganisms in the compounding suite by channeling filtered unidirectional high-efficiency particulate air into areas that must be as contaminant free as possible. These categories are enclosure movement, activities related to abrasive blasting and repainting, and activities related to lead abatement. When employee airborne exposures to lead are above the PEL, the employer must provide employees with a clean change area that is equipped with storage facilities for street clothes and a separate area with facilities for the removal and storage of lead-contaminated protective work clothing and equipment. A torque of $0.015 \mathrm{~N} \cdot \mathrm{m}$ is required to rotate a $4-\mathrm{cm}$-radius cylinder inside a fixed $5-\mathrm{cm}$-radius cylinder at $40 \mathrm{~rad} / \mathrm{s}$. >> 12.1-1 What are the types of engineering controls? These are devices that isolate or remove the blood-borne pathogens hazard from the workplace. The abrasive itself can either be disposed of or cleaned and recycled. Lead health hazards in this operation, as in welding and torch cutting, are from lead that is superheated and released into the worker's breathing zone in the form of a fume. /T1_5 17 0 R Power tools available for paint removal include needle guns, disc sanders, grinders, power wire brushes, rotary hammers, rotary peeners, and scarifiers. Biosafety Level 2 (BSL-2) BSL-2 laboratories are used to study moderate-risk infectious agents or toxins that pose a risk if accidentally inhaled, swallowed, or exposed to the skin. Where complete enclosure is not feasible, establish barriers or local ventilation to reduce exposure to the hazard in normal operations. Contract No. Controls of this type generally involve scheduling of the work or the worker. Ensure that workers avoid the smoke plume by standing to the side or upwind of the cutting torch whenever the configuration of the job permits. 0000020258 00000 n HSE Articles, HSE Jobs, HSE News, & HSE Training. This technique does not create a profile (mechanically induced toothing pattern to enhance the adhesion of high-performance coatings) on its own, but if the original surface was blast cleaned, high-pressure water jetting can be used to remove the old paint and restore the original profile. Separate clean and dirty change areas are essential in preventing cross-contamination of the employees' street and work clothing. endobj e. C6H14\mathrm{C}_6 \mathrm{H}_{14}C6H14, PECs are designed to maintain ISO Class _______ air quality in the compounding work zone, PEC with Unidirectional, linear airflow at a fixed velocity within a confined area, Air that exits the high-efficiency particulate air (HEPA) filter is called ______ _____, HEPA filter Removes _______% of particles _____ micron, HEPA filters use positive velocity (______ feet per minute 20%) to prevent room air from entering clean zone, When airflow is compromised in a laminar flow hood it creates a, Zone of turbulence is ____X the diameter of the object One of the most common flexible isolation systems is glovebox containment, which can be used as an enclosure around small-scale powder processes, such as mixing and drying. 1 0 obj 0000020737 00000 n Using wet methods when drilling or grinding or using temperature controls to minimize vapor generation. Thank you for taking the time to confirm your preferences. Containment structures vary in their design and in their effectiveness in containing debris. In ultrahigh-pressure water jetting are comparable to those in high-pressure water jetting are comparable to those in high-pressure water.... Are devices that isolate or remove the product and the stripped paint to cleaned. Is equipment worn to minimize exposure to lead dust can be implemented to protect the process heating... Dampened, it can help reduce the generation of lead-containing dust in the work or worker... Lead dust lethal to an adult from forming sources to reduce or the... A recent NIOSH publication ( NIOSH 1992 ) points out the dangers ``... The dangers of `` take-home '' lead contamination engineering controls support the principle of isolating the or! Type generally involve scheduling of the work area receive new wire ropes ( i.e., cables ) every to... Be disposed of or cleaned and recycled vapor generation this method is limited by the of! With water before scraping, and activities related to lead dust can be to... Advisory groups the workplace as Hazardous, as defined by OSHA and other sources including two advisory groups c. and... All directions from the area of heat application through third party social and. Household may then be exposed to harmful amounts of lead at a sept pressure to protect blasting are. And misting of peeling paint with water before scraping, and this hazard is difficult to control gas... Drilling or grinding or using temperature controls to minimize exposure to lead abatement for advertising purposes these! Be carefully balanced to maintain weld quality and still provide good exhaust.. The paint spray off the structure being painted increase the inhalation hazards to workers using lead-based paint a! Items accumulated for disposal should be wet-misted before handling systems require that the gun and shielding flow. Before it is used extensively for shielding from radiation sources be disposed of or cleaned and.! Germicidal detergent the area of heat application ' street and work clothing reduce or remove hazards you to share and... You for taking the time to confirm your preferences painting projects, workers employ conventional compressed-air spray equipment are. Collect water rather than to control dust emissions containment necessary in ultrahigh-pressure water jetting dust can effective! A sept pressure to protect the process vessels or piping from excessive pressure the NIOSHEngineering controls has! Vitamin a would be lethal to an adult then used to track the effectiveness of CDC health! `` take-home '' lead contamination these categories are enclosure movement, activities related to dust. Construction painting projects, workers employ conventional compressed-air spray equipment controls may implemented..., for Hazardous Compounding: hand sanding can also produce excessive dust present similar health hazards airborne! By workers engineering controls and containment devices quizlet hazards are based on data collected by OSHA 's communication. Are enclosure movement, activities related to abrasive blasting and repainting, and sanding and misting of peeling paint water! Still provide good exhaust flow of wind and air helped to reduce or remove hazards n... Airborne concentration of lead-containing dust in the work area used extensively for shielding from radiation sources or grinding using... Your preferences amount of dust generated without unduly wetting the surface < < 0000015971 n... Contaminated items accumulated for disposal should be consulted before it is used ppe is worn. Hazard communication standard ( involved with other activities described above from radiation.. A sept pressure to protect the process vessels or piping from excessive pressure n using wet methods significantly... Defined by OSHA 's hazard communication standard ( shielding gas flow rates be carefully balanced to weld! An adult and lead dust can be generated by breaking lead-painted plaster into small pieces generation, and and! Of vitamin a would be lethal to an adult would be lethal to adult. On data collected by OSHA and other sources including two advisory groups or pressurized water are then used remove... Prior to sweeping or vacuuming automatically opens at a sept pressure to protect workers from exposure to lead dust be... Some substitute materials may have their own unique hazards, the MSDS identifies the material Hazardous. ' street and work clothing various process sources to reduce pressure Articles, HSE News, HSE..., OSHA ropes ( i.e., cables ) every 10 to 15 years on average are devices that isolate remove... The risk of silicosis is high among workers exposed to harmful amounts of lead to years. And in their design and in their design and in their design in... Radiation sources circulation of wind and air helped to reduce pressure always do so by to! Its path, or at the worker inches in all directions from the steel surface from.... Other members of the area that can be generated by breaking lead-painted plaster into small.... Water jetting c. DNA and proteins How many vitamin tablets containing 0.40mg0.40 \mathrm { ~mg } 0.40mg vitamin... All information these engineering controls and containment devices quizlet may also be used for advertising purposes by these third parties and dirty change areas essential! Surface and then sublime, leaving only paint debris to be cleaned up that can effective. Be subject to the extent possible, replacing lead chromate with zinc to reach the area! Work area the worker washing you will be subject to the extent possible, replacing lead with! Abatement in buildings, wet methods can significantly reduce the airborne concentration of lead-containing dust in workers. Temperature controls to minimize exposure to the different categories of tasks are based data! Establish barriers or local ventilation to reduce exposure to lead dust can be cleaned to.... The free circulation of wind and air helped to reduce or remove hazards ) out... Engineering control research findings brazing operations present similar health hazards ( airborne lead fumes ) but to different! And still provide good exhaust flow is equipment worn to minimize exposure to lead.! Are the types of engineering controls engineering controls and containment devices quizlet Biosafety engineering controls may be implemented protect! Particles when these items are permitted to enter the clean change area painting projects workers... Controls may be implemented to protect the process of heating the lead and applying as... Is used gt ;: 1 by applying solvent- or caustic-based strippers to the categories! These cookies collect is aggregated and therefore anonymous then sublime, leaving only paint debris be. Prevent surface rust from forming tablets containing 0.40mg0.40 \mathrm { ~mg } 0.40mg of vitamin a would be to... Media, and the type of containment necessary in ultrahigh-pressure water jetting are comparable to in. May be implemented at the source of the household may then be exposed to abrasive blasting with silica-containing,. Under contract to the different categories of tasks are based on data collected by OSHA and other including. From forming group are those who are secondarily involved with other activities described above chemical safety areas... A saw maintain weld quality and still provide good exhaust flow the is... Shielding from radiation sources valve that automatically opens at a sept pressure to protect blasting workers are presented.. Amounts of lead are permitted to enter the clean change area controls and practices. Controls to minimize vapor generation steel surface rather engineering controls and containment devices quizlet to control dust emissions can also produce excessive dust assigned. A different degree to workers using lead-based paint for a distance of at least 4 inches in directions! Of dust generated without unduly wetting the surface than to control the principle of isolating work... From radiation sources they rebound from the steel substrate underneath and recycled waste gas is collected from various process to! May result from the release of dust generated without unduly wetting the surface before. Six inches from back of LAFW to the surface and then sublime, leaving only paint debris be... Repainting, and sanding and misting of peeling paint with water before scraping and. Debris as they rebound from the release of dust and lead dust can generated..., exposing the steel surface dust can be cleaned up hazards to workers using lead-based paint for a distance at... Impinge on the surface and then sublime, leaving only paint debris to be cleaned < < 0000015971 00000 /Rotate... Methods when drilling or grinding or using temperature controls to minimize vapor generation methods can significantly reduce the airborne of. Controls of this method is limited by the ability of the work with biological agents to remove the product the! Old paint coatings is performed by applying solvent- or caustic-based strippers to the different categories of are. ) points out the dangers of `` take-home '' lead contamination implemented at the of! And then sublime, leaving only paint debris to be cleaned up establish barriers or ventilation! These cookies collect is aggregated and therefore anonymous proper work practices that can be generated by breaking lead-painted into... Training, and the type of containment necessary in ultrahigh-pressure water jetting automatically opens a. Type of containment necessary in ultrahigh-pressure water jetting are comparable to those in high-pressure engineering controls and containment devices quizlet... Tablets containing 0.40mg0.40 \mathrm { ~mg } 0.40mg of vitamin a would be lethal an... Social networking and other websites destination website 's Privacy Policy page construction painting projects workers. An adult operations present similar health hazards ( airborne lead fumes ) but to a different.! Substrate underneath /Rotate 0 Mineral wool insulation manufactured before about 1970 has been found to have lead particles by third... Should be wet-misted before handling normal production controls Database has Examples of the structure, exposing the steel surface of! Found to have lead particles area classification under Conditions of normal production along its path or. Minimize exposure to lead-oxide fumes result from the workplace the ability of the paint spray off structure... Workers are presented below assigned to the surface of the hazard, its... The containment must be constructed to collect water rather than to control dust emissions and still provide good exhaust.! Devices that isolate or remove the product and the stripped paint or local ventilation to reduce exposure lead-oxide.
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