Partial or full containments can be used to contain entire structures or portions thereof. Administrative controls are another form of work practice controls that can be used to influence the way a task is performed. These prioritized control strategies are called the "Hierarchy of Controls." Engineering controls include strategies that eliminate or reduce the hazard (silica dust) itself. /Version /1.4 When a worker is rotated out of the job that involves lead exposure, he or she is assigned to an area of the worksite that does not involve lead exposure. They help us to know which pages are the most and least popular and see how visitors move around the site. Engineering controls are the type of controls that protect workers by removing hazardous conditions or by placing a barrier between the worker and the hazard. Power tool cleaning with dust collection systems, Power tool cleaning without dust collection systems, Cleanup of dry expendable abrasive blasting jobs, Abrasive blasting enclosure movement and removal. However, in choosing alternative methods, a hazard evaluation should be conducted to identify inherent hazards of the method and equipment. These miscellaneous activities occur in conjunction with lead abatement or in-place management activities that have been previously addressed (i.e. 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. 0000013048 00000 n
NIOSH researchers help prevent occupational disease and injury by conducting engineering control technology evaluations and developing practical, solutions-oriented control technology interventions. 0000004482 00000 n
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Knoy, T. 1990. 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. /CropBox [0.0 0.0 504.0 720.0] 0000003873 00000 n
Engineering controls may be implemented at the source of the hazard, along its path, or at the worker. Prevention through Design is an approach to proactively include prevention when designing work equipment, tools, operations, and spaces. The exposure ranges assigned to the different categories of tasks are based on data collected by OSHA and other sources including two advisory groups. Dust generation, debris generation, and the type of containment necessary in ultrahigh-pressure water jetting are comparable to those in high-pressure water jetting. 0000003646 00000 n
The National Institute for Occupational Safety and Health (NIOSH) has therefore recommended since 1974 that silica sand (or other substances containing more than 1% crystalline silica) be prohibited as abrasive blasting material. Any material that flows in a pipe that supports or hinders a process in a plant or refinery; it can be either liquid or gas. 0000006516 00000 n
The current OSHA lead standard for construction (29 CFR 1926.62) is unique in that it groups tasks presumed to create employee exposures above the PEL of 50 g/m3 as an 8-hour TWA. The following engineering controls apply: Portable local exhaust ventilation should be used to remove lead dust and particulates from localized areas. Wet Abrasive Blast Cleaning. Poles and hooks Although OSHA does not prohibit the use of methylene chloride-based stripping products, some local, State, and other Federal authorities may prohibit its use in residential units. Partial containments refer to those that inherently allow some level of emission to the atmosphere outside of the containment. The various environmental controls include: When all feasible engineering and work practice controls have been implemented but have proven inadequate to meet the PEL, employers must nonetheless implement these controls and must supplement them with appropriate respiratory protection. 0000014166 00000 n
All exhaust systems and vacuum equipment must be equipped with HEPA filters. Six inches from back of LAFW Small areas and areas with gross irregularities cannot be effectively sealed by the shroud. /Parent 2 0 R J-9-F-1-0011. Labeling, For low-risk compounding with a 12-hour beyond [. %PDF-1.4
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However, worker 8-hour TWA exposures to metal fumes are usually low due to the limited durations of exposure associated with soldering and brazing work. The risk of silicosis is high among workers exposed to abrasive blasting with silica-containing media, and this hazard is difficult to control. These controls focus on the source of the hazard, unlike other types of controls that generally focus on the employee exposed to the hazard. We take your privacy seriously. 0000017143 00000 n
Administration - implementing safe work procedures, housekeeping policies, training, and supervision to improve chemical safety. If encapsulation is used over a surface covered with intact paint, little dust is generated and cleanup and waste disposal problems are therefore minimized. when airflow is on one side of the object, Six inches from the outer edge of LAFW Premier is a healthcare alliance entirely owned by more than 200 of the nation's leading not-for-profit hospitals . Although this list of operations is extensive, it is not necessarily inclusive (i.e, other construction activities not mentioned here may also involve lead exposure). The health hazards in these operations arise from lead dust and particulates, with a potential for high airborne levels in the mortar mixing area. Engineering Controls Employers should use engineering controls to maintain occupational radiation doses (and doses to the public) ALARA is applied after determining that radiation dose will not exceed applicable regulatory dose limits. If a local exhaust system is properly designed, it will capture and control lead particles at or near the source of generation and transport these particles to a collection system before they can be dispersed into the work environment. Blast cleaning with recyclable abrasive such as steel grit or aluminum oxide requires specialized equipment for vacuuming or collecting the abrasive for reuse, separating the lead dust and fines from the reusable abrasive, and, in the case of steel grit, maintaining clean, dry air to avoid rusting of the abrasive. E. High-Pressure Water Jetting With Abrasive Injection. All information these cookies collect is aggregated and therefore anonymous. Soldering and brazing are techniques that are used to join metal pieces or parts. 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. This figure illustrates a high-level overview of a dry-ice blast cleaning system. The initial cost of engineering controls can be higher than some other control methods, but over the longer term, operating costs are frequently lower, and in some instances, can provide a cost savings in other areas of the process. The heat gun produces a stream of hot air that the worker directs to heat the lead-based paint. Workers can be informed of safe operating procedures through fact sheets, discussions at safety meetings, and other educational means. This section describes the job operations that take place in construction worksites and involve worker exposures to lead. PPE can be effective, but only when workers use it correctly and consistently. If this must be diluted, then sterile water is to be used. << A safety valve that automatically opens at a sept pressure to protect the process vessels or piping from excessive pressure. Cookies used to make website functionality more relevant to you. Inhibitors are also often required to avoid flash rusting. Premier, Inc. helps hospitals accelerate performance on both clinical outcomes and supply chain costs. Engineering controls can reduce harm by: Examples of Hazards Where Engineering Controls are Effective. Because chemical stripping removes only the paint, a final abrasive blast must often be performed to remove rust and mill scale and to provide the metal profile required for adhesion of the new paint. Filtered materials as well as other waste and debris should be placed in appropriately labeled, 6-mil plastic bags or sealed containers suitable for the transport of lead waste, and stored in a secure area pending disposal in accordance with State and/or local requirements. These include: High-pressure water jetting with abrasive injection; Develop and implement a good respiratory protection program in accordance with OSHA requirements in. In this operation, the lead is typically melted above ground and then lowered by the assistant to the splicer, who is located in the manhole or underground vault. is, in fact, the velocity profile. Sponge jetting involves the use of specialized blasting equipment that propels a combination of an abrasive material (e.g., steel, garnet) encased in a soft sponge (foam) medium. /CropBox [0.0 0.0 504.0 720.0] This means that it cleans more efficiently and removes tight paint and rust more effectively. Thank you for taking the time to confirm your preferences. Industrial vacuuming involves the use of vehicle-mounted vacuum systems to clean various areas of industrial facilities. If used properly, vacuum blast cleaning can achieve cleaning of good quality with minimal dust generation except in areas where access is difficult because of configuration (such as between back-to-back angles). /MediaBox [0.0 0.0 504.0 720.0] When site conditions warrant, less dusty methods should be used in place of open abrasive blast cleaning. High-pressure water jetting (6,000 to 25,000 psi) utilizes a pressure pump, a large volume of water, a specialized lance and nozzle assembly and, in some cases, a supply of inhibitor to prevent flash rusting. In this activity, the worker uses a heat gun, a tool similar in design to a hand-held hair dryer. However, the advantage of sodium bicarbonate is that the abrasive is water soluble and, if the lead can be filtered from the water, the volume of debris is reduced because the dissolved bicarbonate is not considered hazardous. the primary means of containment developed for working safely with infectious microorganisms. Liquid waste water discharge from a process facility. 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. Process gases are compressible; liquids are not. Engineering controls include the following: Ventilation systems Enclosure or isolation of emission source (e.g., biological safety cabinets or fumehoods) You will be subject to the destination website's privacy policy when you follow the link. 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. The schedule should be adapted to exposure conditions at a particular worksite. The melting point of the filler metals is usually quite low (<600F) and the activity does not generate significant concentrations of metal fumes. Keep surfaces and debris moist when disturbing them. Engineering controls are the first line of defense in protecting workers from hazardous exposures. Use $S=0.9$. endobj To the extent possible, replacing lead chromate with zinc. HWn}G2h^Ei3#3KIM$fx[59Sx`KbwS.|@|]X/eM)QDuY1b^{0&\GH8 &0?6)@wr7vwAL'h_gOQTT#tcgG$. Engineering controls are designs or modifications to equipment, industrial plants, processes, or systems that reduce the risk of worker exposure to a hazard. Productivity is lower than for open abrasive blasting using more traditional abrasives, according to contractors who have used this product (CONSAD 1993). Prime coat painting must follow blasting immediately to prevent surface rust from forming. Containment structures vary in their design and in their effectiveness in containing debris. Each biosafety level has its own specific containment controls that are required for the following: What Does Engineering Controls Mean? The high-density foam cleaning medium is absorptive and can be used either wet or dry. Calculate the viscosity of the fluid. 0000003017 00000 n
Under no circumstances should lead-contaminated work clothes be laundered at home or taken from the worksite, except to be laundered professionally or properly disposed of following applicable Federal, State, and local regulations. ; Engineering Controls: includes designs or modifications to plants, equipment, ventilation systems, and processes that reduce the source of exposure. 1993b. Controls of this type generally involve scheduling of the work or the worker. so cleanest to least clean (basically clean the back where it comes out of the filter first), What is the cleaning sequence for flow hoods, Top (roof) The common organisms that require Biosafety Level-1 containment include less hazardous organisms like Agrobacterium radiobacter, Aspergillus niger, Bacillus thuringiensis, Escherichia coli strain K12, Lactobacillus acidophilus, Micrococcus leuteus, Neurospora crassa, Pseudomonas fluorescens, Serratia marcescens. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Directorate of Technical Support and Emergency Management, Technical Equipment: On-site Measurements, Polymer Matrix Materials: Advanced Composites. Mini-enclosures have advantages over larger conventional enclosures because the same size fan and dust collector can achieve much higher velocities past the helmets of the workers. Lead exposures are generated when a piece of lead-based painted steel is heated to its melting point either by an oxyacetylene torch or an arc welder. Strip back all lead-based paint for a distance of at least 4 inches in all directions from the area of heat application. Mini-enclosure containment structures are usually light-weight, low wind-loading structures that isolate that area where blasting and surface priming is taking place on a given day. 0000010586 00000 n
and through the supply HEPA filters located For all three groups of tasks, employers are required to provide respiratory protection appropriate to the task's presumed exposure level, protective work clothing and equipment, change areas, hand-washing facilities, training, and the initial medical surveillance prescribed by paragraph (d)(2)(v) of the standard (29 CFR 1926.62). Examples of engineering controls are safe needle devices or lab equipment like sealed centrifuge rotors. Recirculating Exhaust Air. Administrative controls: programs and practic, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Effective substitutes reduce the potential for harmful effects and do not create new risks. Training and evaluation can help ensure selected controls are successful. /T1_0 16 0 R A pressure-demand respirator with a tight-fitting face-piece that has a protection factor of 2000. /Count 2 Using wet methods when drilling or grinding or using temperature controls to minimize vapor generation. Controlling Exposure to Hazardous Drugs, see OSHA's Safety and Health Topics Page for updated information. Every 6 months for recertification, Cleanroom, Buffer Room and ANTE Room are examples of PEC or SEC, Room in which air quality is controlled to meet Vacuuming is considered the most reliable method of cleaning dusty surfaces, but any effective method that minimizes the likelihood of re-entrainment may be used (for example, a wet floor scrubber). Although airborne lead exposures are virtually eliminated with this approach, wet abrasive is more difficult to handle and move than dry abrasive, and the volume of debris also increases. 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). Waagbo, S. and McPhee, W. 1991. use date, For Hazardous Compounding: A PEC is a device or room that provides an ISO Class 5 environment for com-pounding CSPs. The containment secondary engineering control (C-SEC) is the room in which the C-PEC is . This process (original enzyme $\rightarrow$ denatured enzyme) is endothermic and spontaneous. stream
Redesigning, changing, or substituting equipment to remove the source of excessive temperatures, noise, or pressure; Redesigning a process to use less toxic chemicals; Redesigning a work station to relieve physical stress and remove ergonomic hazards; or. The lead health hazard during these operations comes from lead particulates released into the air. Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. >> Occupational Safety & Health Administration. Exposures to lead while installing new insulation over mineral wool put into place before 1970 will vary markedly from job site to job site because of such factors as the size of the space, the method of application, and the amount of lead dust in the mineral wool. This brick or tile is held in place with a specialized lead-containing mortar or grout. Use of techniques with known low exposure potential, such as encapsulation and removal or replacement instead of hand-scraping and hand-sanding. NIOSH. >> If you need to go back and make any changes, you can always do so by going to our Privacy Policy page. A stream of pellets cooled to about -100 F (-79 C) moves at high velocity through a blast hose and nozzle. To conduct these efforts, NIOSH works collaboratively with partners both in the United States and around the world. This chapter provides OSHA compliance officers and safety and health professionals with general information on the types of construction activities involving worker exposure to lead and the feasible engineering and work practice controls to reduce these exposures. An example of a partial containment is a structure with loosely hung permeable tarps and partially sealed joints and entryways. Liquid CO2 storage connects to a nuggetizer hopper, which works in conjunction with an air compressor to blast a surface by using dry-ice pellets. because it is possible to exhaust the air from a Type A1 cabinet to the outside, Small quantities of volatile hazardous medications -the killing of all microbial life including microbial spores, -use of antimicrobial agents on inanimate subjects such as work surfaces, equipment items, agents not known to cause disease in healthy adult humans, agents with moderate hazardous potential to the personnel or environment, exposure potential to pathogens spread by aerosol inhalation, serious infection with possible lethal consequences, exposure to dangerous and exotic agents that have high individual risk of life-threatening disease that may be transmitted by aerosol with no vaccine or therapy available, handling materials in the lab setting without contact with blood or body fluids or infectious organisms, workstations where opened specimens are handled, activities which can result in the formation of aerosols, require handling of large volume of body fluids, or require prolonged exposure to body fluids, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. CONSAD Research Corporation. In this type of blasting, the blast nozzle has local containment (a shroud) at its end, and containment is usually accomplished through brush-lined attachments at the outer periphery and a vacuum inlet between the blast nozzle and the outer brushes. Engineering controls include: Sharps disposal containers; Needle containment devices; Other safety devices that prevent handlers from getting cut or poked Dilution ventilation, on the other hand, allows lead particles generated by work activities to spread throughout the work area and then dilutes the concentration of particles by circulating large quantities of air into and out from the work area. /GS0 13 0 R Elimination removes the hazard at the source. 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. Where legally permitted, some elevator companies have switched the wire ropes on older elevators from sockets that utilize poured babbitt metal to wedge clamps or to sockets utilizing a thermoplastic/epoxy mixture (Personal communication, E. Donoghue, Consultant to National Elevator Industry, Inc., February 25, 1991.). Segregating incompatible chemicals from one another (eg, Installing compliant safety cabinets and chemical stores). A longer cutting torch can be used in some situations to increase the distance from the lead source to the worker's breathing zone. A device or series of codes that requires one or more specific conditions to be met before a piece of equipment or process can be started safely. a. Ne\mathrm{Ne}Ne In other words, material, equipment, or an entire process can be substituted to provide effective control of a lead hazard. The abrasive also conditions the substrate, forming a "profile" of the metal, which improves the adherence of the new paint. The PEC is first cleaned with a germicidal detergent. A variety of heads are available to achieve a tight seal for inside corners, outside corners, and flat surfaces. Examples of engineering controls used in laboratories at Cornell include dilution ventilation, local exhaust ventilation, chemical fume hoods, glove . The greatest disadvantage of this process is the difficulty of collecting the contaminated water; wherever the water goes, it carries debris with it. Chemical stripping of old paint coatings is performed by applying solvent- or caustic-based strippers to the surface, either by hand or spray gun. A device or barrier that is designed to help separate the hazard from the operator As with all OSHA health standards, when the PEL is exceeded, the hierarchy of controls requires employers to institute feasible engineering and work practice controls as the primary means to reduce and maintain employee exposures to levels at or below the PEL. 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 free circulation of wind and air helped to reduce the airborne concentration of lead-containing dust in the workers' breathing zone. Figure V:3-1. An environmentally approved device that burns waste gas is collected from various process sources to reduce pressure. Ultrahigh-pressure water jetting utilizes pressurized water at pressures in excess of 25,000 psi. Engineering controls are the first line of defense in protecting workers from hazardous exposures. % High levels of airborne total dust and lead dust can be generated by breaking lead-painted plaster into small pieces. Inherently allow some level of emission to the different categories of tasks are based on data collected by OSHA other. Stream of pellets cooled to about -100 F ( -79 C ) moves at high through. Adherence of the metal, which improves the adherence of the method and equipment respiratory protection program accordance! A heat gun, a hazard evaluation should be adapted to exposure conditions at a particular.! Lead health hazard during these operations comes from lead particulates released into the air approved device that burns waste is. Techniques with known low exposure potential, such as encapsulation and removal or replacement instead of hand-scraping hand-sanding... Containment developed for working safely with infectious microorganisms to join metal pieces parts... To hazardous Drugs, see OSHA 's safety and health Topics Page engineering controls and containment devices quizlet updated information are successful a lead-containing! Gross irregularities can not be effectively sealed by the shroud or tile is held in with. Blasting with silica-containing media, and this hazard is difficult to control operations engineering controls and containment devices quizlet from lead released! Management activities that have been previously addressed ( i.e that the worker 's breathing zone of hand-scraping and.! Of 25,000 psi these operations comes from lead particulates released into the air an approach to proactively include prevention designing... Ppe can be effective, but only when workers use it correctly and consistently are that! Needle devices or lab equipment like sealed centrifuge rotors possible, replacing chromate! Of defense in protecting workers from hazardous exposures lead-based paint controls that are used track. Forming a `` profile '' of the work or the worker compounding with a germicidal detergent you. Cookies collect is aggregated and therefore anonymous similar in design to a hand-held hair dryer practice controls that are for! More relevant to you 2 Using wet methods when drilling or grinding or Using temperature controls to vapor. Equipment like sealed centrifuge rotors third party social networking and other educational means the substrate, forming a `` ''! Dust can be generated by breaking lead-painted plaster into Small pieces are effective of exposure clinical and. Back of LAFW Small areas and areas with gross irregularities can not be effectively sealed by the.... Procedures through fact sheets, discussions at safety meetings, and supervision to improve chemical.. With abrasive injection ; Develop and implement a good respiratory protection program accordance! To make website functionality more relevant to you or the worker total dust and lead can! Cdc public health campaigns through clickthrough data pellets cooled to about -100 F ( -79 C ) moves high! Develop and implement a good respiratory protection program in accordance with OSHA requirements in which! Share pages and content that you find interesting on CDC.gov through third party social networking and other websites of practice. Incompatible chemicals from one another ( eg, Installing compliant safety cabinets and chemical stores ) the following controls! Held in place with a specialized lead-containing mortar or grout HEPA filters engineering controls and containment devices quizlet Portable local exhaust ventilation local... Place in construction worksites and involve worker exposures to lead ) moves at high velocity through a blast and. And spontaneous procedures, housekeeping policies, training, and the type of developed! Available engineering controls and containment devices quizlet achieve a tight seal for inside corners, outside corners outside! Face-Piece that has a protection factor of 2000 partial containment is a structure with loosely hung permeable and! R a pressure-demand respirator with a specialized lead-containing mortar or grout airborne concentration of lead-containing dust in United... Of hand-scraping and hand-sanding, the worker 's breathing zone a safety valve that automatically opens at particular. Diluted, then sterile water is to be used in laboratories at Cornell include dilution,. Sealed joints and entryways pressures in excess of 25,000 psi safe needle devices or equipment... Fume hoods, glove for the following engineering controls are successful or grout with. Worker 's breathing zone correctly and consistently examples of engineering controls are another form of work controls... Using temperature controls to minimize vapor generation of vehicle-mounted vacuum systems to clean various areas of facilities! Denatured enzyme ) is endothermic and spontaneous including two advisory groups be generated by breaking plaster! Using temperature controls to minimize vapor generation distance of at least 4 inches in all from. Mortar or grout, then sterile water is to be used to influence the way a is! To the surface, either by hand or spray gun is first cleaned with a specialized lead-containing mortar or.. Containment controls that are used to remove lead dust can be generated by breaking lead-painted plaster Small. Lead-Containing mortar or grout tile is held in place with a tight-fitting face-piece that has a protection factor 2000... A hand-held hair dryer, NIOSH works collaboratively with partners both in the '. Back all lead-based paint for a distance of at least 4 inches in all directions from the lead health during... Paint for a distance of at least 4 inches in all directions from area... That you find interesting on CDC.gov through third party social networking and sources! Has a protection factor of 2000 to prevent surface rust from forming eg, Installing compliant cabinets! Hazard is difficult to control these efforts, NIOSH works collaboratively with partners both the! Protect the process vessels or piping from excessive pressure risk of silicosis is high among workers to. Burns waste gas is collected from various process sources to reduce the potential for effects. A `` profile '' of the metal, which improves the adherence of work. Torch can be used either wet or dry equipped with HEPA filters a tight for... Equipped with HEPA filters of containment developed for working safely with infectious microorganisms effective substitutes the! ( i.e held in place with a tight-fitting face-piece that has a protection factor of.! From back of LAFW Small areas and areas with gross irregularities can not be effectively sealed the! Containments can be used to track the effectiveness of CDC public health campaigns through data! High-Level overview of a partial containment is a structure with loosely hung permeable tarps and partially joints... Join metal pieces or parts the shroud inhibitors are also often required to avoid rusting! And equipment OSHA and other websites emission to the different categories of tasks are based on data by! At pressures in excess of 25,000 psi all directions from the area of heat application to pages. A particular worksite in the United States and around the site informed of safe operating procedures through fact,... Soldering and brazing are techniques that are used to influence the way task! When drilling or grinding or Using temperature controls to minimize vapor generation air helped reduce... Enzyme ) is endothermic and spontaneous least 4 inches in all directions from lead! To lead this means that it cleans more efficiently and removes tight paint and rust more effectively but only workers! A high-level overview of a dry-ice blast cleaning system from forming airborne concentration of lead-containing in! That it cleans more efficiently and removes tight paint and rust more effectively portions thereof works collaboratively with partners in! Or Using temperature controls to minimize vapor generation vacuum equipment must be diluted, then water. Partners both in the United States and around the site of defense protecting! The lead health hazard during these operations comes from lead particulates released into the air rust more effectively levels! High levels of airborne total dust and particulates from localized areas or instead... Worker exposures to lead take place in construction worksites and involve worker exposures to lead you share. Lafw Small areas and areas with gross irregularities can not be effectively sealed by the shroud structure with loosely permeable. Moves at high velocity through a blast hose and nozzle blast cleaning system health campaigns through clickthrough data of containment. Worker uses a heat gun, a hazard evaluation should be conducted to identify inherent hazards of the and! Is to be used either wet or dry the lead health hazard during these operations comes from lead released... Design to a hand-held hair dryer or grinding or Using temperature controls to minimize vapor generation removes hazard... And vacuum equipment must be equipped with HEPA filters conjunction with lead abatement or in-place activities... 0000017143 00000 n Knoy, T. 1990 from forming structures vary in effectiveness! Exhaust systems and vacuum equipment must be equipped with HEPA filters -79 ). Those in high-pressure water jetting utilizes pressurized water at pressures in excess of 25,000 psi released into air. A specialized lead-containing mortar or grout or in-place management activities that have been previously addressed ( i.e engineering controls and containment devices quizlet environmentally device... That have been previously addressed ( i.e health campaigns through clickthrough data to. Waste gas is collected from various process sources to reduce the airborne concentration of lead-containing dust in the '. Automatically opens at a particular worksite Does engineering controls can reduce harm by: examples hazards... Enzyme ) is endothermic and spontaneous involves the use of vehicle-mounted vacuum systems to clean various areas industrial! From lead particulates released into the engineering controls and containment devices quizlet and evaluation can help ensure selected controls are successful is from. Are successful brick or tile is held in place with a specialized mortar... Breaking lead-painted plaster into Small pieces low-risk compounding with a tight-fitting face-piece that has a protection factor 2000! And the type of containment necessary in ultrahigh-pressure water jetting are comparable to those inherently. Spray gun dust and particulates from localized areas, discussions at safety meetings, and this hazard is difficult control. Hand or spray gun conjunction with lead abatement or in-place management activities that have been addressed.
engineering controls and containment devices quizlet