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. 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. These techniques use heat in the form of a propane, MAPP gas, or oxyacetylene flame and a filler metal (tin/lead compositions, rosin core, brazing rods) to accomplish the task of joining. Substitution Install partitions or other temporary barriers to allow for partial containment of dust to minimize exposures to other workers and building occupants. The risk of silicosis is high among workers exposed to abrasive blasting with silica-containing media, and this hazard is difficult to control. The main ways to control a hazard include: Elimination: remove the hazard from the workplace. Health hazards arise from lead dust released into the air during glass removal. Administrative controls are another form of work practice controls that can be used to influence the way a task is performed. 0000001456 00000 n 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. However, in enclosed spaces, strip back or protect the workers with air-line respirators in accordance with the requirements of. This system uses compressed air to propel the abrasive medium to the surface being cleaned; however, water (which reduces dusting) is injected into the abrasive stream either before or after the abrasive exits the nozzle (Figure V:3-1). For the same reason, vehicles driven to the worksite should be parked where they will not be contaminated with lead. /CropBox [0.0 0.0 504.0 720.0] 0000017079 00000 n 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 . This activity is usually performed by workers in the plumbing trades. Evaluate Exposure Use personal protective equipment if engineering controls and work practices alone cannot reduce hydrogen sulfide to safe levels. Developing administrative controls and safe work practices to reduce exposures to safe levels. Failure to operate engineering controls properly may also contaminate the work area. A variety of heads are available to achieve a tight seal for inside corners, outside corners, and flat surfaces. Dust generation, debris generation, and the type of containment necessary in ultrahigh-pressure water jetting are comparable to those in high-pressure water jetting. Engineering controls can reduce harm by: Examples of Hazards Where Engineering Controls are Effective. Power tools available for paint removal include needle guns, disc sanders, grinders, power wire brushes, rotary hammers, rotary peeners, and scarifiers. A system used to keep external air, which may contain airborne toxic substances, from entering the building. Controlling Exposure to Hazardous Drugs, see OSHA's Safety and Health Topics Page for updated information. The greatest advantage to carbon-dioxide (dry-ice) blasting is that the blast medium sublimes and needs no further handling or disposal. /Kids [3 0 R 4 0 R] Engineering control can also be said to be is a piece of equipment, a machine, or mechanical device designed to minimise the harm associated with a hazard. The magnitude of the painter's particulate exposure to lead is dependent on the product used, its lead content, and the quantity of paint applied. A rigorous housekeeping program is necessary in many jobs to keep airborne lead levels at or below permissible exposure limits. The PEC is first cleaned with a germicidal detergent. A biological safety cabinet has what type of airflow, Which Class of BSCs provides personnel and environmental protection, but no product protection, Between Class 2 Type A1 and Class 2 Type A2, which one should not to be used for work involving volatile hazardous medications, Class 2 TYpe A1 You will be subject to the destination website's privacy policy when you follow the link. /Type /Page This may be achieved by installing sheet-rock walls on top of the paint, covering surfaces with fiberglass, or recoating housing components with a nonlead-based paint. DHHS NIOSH Publication HETA 90-070-2181. If this must be diluted, then sterile water is to be used. /Resources << The free circulation of wind and air helped to reduce the airborne concentration of lead-containing dust in the workers' breathing zone. Administrative controls: programs and practic, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 1993a. The use of this method is limited by the ability of the shears to reach the cutting area. Remove wallboard by cutting it into large pieces/sections with a carpet knife or shrouded saw with HEPA vacuum attachment. Premier, Inc. helps hospitals accelerate performance on both clinical outcomes and supply chain costs. 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). The process of heating the lead and applying it as a liquid presents an opportunity for exposure to lead-oxide fumes. Engineering controls are the first line of defense in protecting workers from hazardous exposures. The dust-laden air must be filtered prior to its release into the atmosphere. Controlling exposures to hazards in the workplace is vital to protecting workers. 12.1-1 What are the types of engineering controls? Which structure, the original enzyme or the denatured enzyme, is more ordered? Such devices include, but may not be limited to, laminar airflow workbenches (LAFWs), biological safety cabinets (BSCs), compounding aseptic isolators (CAIs), and compounding aseptic containment isolators (CACIs). This means that it cleans more efficiently and removes tight paint and rust more effectively. 0000003017 00000 n >> HUD Lead-Based Paint Abatement Demonstration Project. Some chemical stripping products are toxic (e.g. /ArtBox [0.0 0.0 504.0 720.0] This figure illustrates a high-level overview of a dry-ice blast cleaning system. These methods are best used at the design or development stage of a work process, place, or tool. The concentric cylinders are $50 \mathrm{~cm}$ long. dust "blowdown" inside a negative-pressure containment structure). Standard engineering controls in BSL-1 laboratories include easily cleaned surfaces that are able to withstand the basic chemicals used in the laboratory. airlock chamber. Work is generally organized so that blasting proceeds for approximately one-half day, followed by compressed air cleaning of the steel and application of the prime coat of paint. Partial or full containments can be used to contain entire structures or portions thereof. In addition, the production rate with dry-ice blasting is sometimes slow compared with the rate for conventional abrasive blasting. /ArtBox [0.0 0.0 504.0 720.0] Although containment structures are designed to reduce the dispersion of lead into the environment, they usually increase worker exposure to airborne lead, reduce visibility, and increase the risk of slip and fall injuries due to waste material build-up on the footing surface of the enclosure. BSCs are only one part of an overall biosafety program which requires consistent use of good A pressure-demand respirator with a tight-fitting face-piece that has a protection factor of 2000. >> 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. In eukaryotic cells, chromosomes are composed of what? Good supervision is another important work practice. 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. 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. Controlling the environmental hazards are part of the directive to decrease the potential for the spread of bloodborne pathogens and other potentially infectious agents. Vacuum blasting is a variation of open abrasive blasting. The lead health hazard during these operations comes from lead particulates released into the air. >> 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 Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. The hierarchy of controls is a way of determining which actions will best control exposures. %PDF-1.4 Provide workers with Type CE abrasive-blast respirators; these are the only respirators suitable for use in abrasive-blasting operations. 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. Administrative controls establish work practices that reduce the duration, frequency, or intensity of exposure to hazards. Substitution includes using a material that is less hazardous than lead, changing from one type of process equipment to another, or even, in some cases, changing the process itself to reduce the potential exposure to lead. /Type /Page Engineering controls, when feasible, are considered the first line of defense for avoiding exposure to bloodborne pathogens. In addition, ensure to the extent possible that workers are upstream from the blasting operation to reduce their exposure to lead dust entrained in the ventilation air. Lint free towels or wipes are to be used to wipe the surface of the PEC. A stream of pellets cooled to about -100 F (-79 C) moves at high velocity through a blast hose and nozzle. Productivity is lower than for open abrasive blasting using more traditional abrasives, according to contractors who have used this product (CONSAD 1993). 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. This could include changing the work process to stop using a toxic chemical, heavy object, or sharp tool. Containment primary engineering control (C-PEC)the device in which compounds are mixed, including a containment ventilated enclosure (CVE) commonly called powder hoods, a biological safety cabinet (BSC), and a compounding aseptic . % 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. /GS0 13 0 R Use of shrouded power tools with HEPA vacuum attachments. Lead caulking is used in commercial construction building applications, most commonly in the joining or sealing of cast iron soil pipes. Using wet methods when drilling or grinding or using temperature controls to minimize vapor generation. Hand washing 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. Regular evaluation can check whether controls are effective in reducing workers exposures and identify potential improvements. mortar between the tiles/brick) must be removed. 0000016525 00000 n endobj The kinds of facilities where vacuuming could result in lead exposure include nonferrous metal plants (excluding aluminum) or steel plants melting lead-containing scrap in an electric-arc furnace. Use $S=0.9$. ; Substitution: replace the hazard (e.g., hazardous products, machines, etc.) To the extent possible, replacing lead chromate with zinc. These include: High-pressure water jetting with abrasive injection; Develop and implement a good respiratory protection program in accordance with OSHA requirements in. If surfaces are peeling or deteriorating and scraping is necessary prior to encapsulation, this method will produce lead dust and paint chips. /T1_4 10 0 R 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. Bags and containers must be labeled to indicate that they contain lead-containing waste. Because residues of primer may still adhere to the substrate at the time of the final blast, the potential for exposure to lead continues, although at greatly reduced levels. Use of ventilation system like fume hoods, snorkels, etc. The nozzle itself is in a nozzle adapter, which in turn connects to a nozzle holder. At the development stage, elimination and substitution may be the simplest and cheapest option. Examples of engineering controls are safe needle devices or lab equipment like sealed centrifuge rotors. Employees must also wash their hands and faces prior to eating, drinking, using tobacco products, or applying cosmetics, and they must not eat, drink, use tobacco products, or apply cosmetics in any work area where the PEL is exceeded. (b) If you want the load to stay in place held only by friction, what is the maximum distance xmaxx _ { \max }xmax you can stretch the spring from its relaxed length and have the load stay on when you release the platform-spring combination? Prevention through Design is an approach to proactively include prevention when designing work equipment, tools, operations, and spaces. The abrasive also conditions the substrate, forming a "profile" of the metal, which improves the adherence of the new paint. Six inches from back of LAFW Knoy, T. 1990. Complete enclosure of moving parts of machinery; Complete containment of toxic liquids or gases; Glove box operations to enclose work with dangerous microorganisms, radioisotopes, or toxic substances; and. A containment primary engi-neering control (C-PEC) is a ventilated device designed to minimize worker and environmental HD exposure when directly handling HDs. ; Engineering Controls: includes designs or modifications to plants, equipment, ventilation systems, and processes that reduce the source of exposure. 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. 0000020258 00000 n This activity involves the use of a lead pot to melt lead for use in (1) cast-iron soil pipe installation, removal, and servicing, (2) electrical cable splicing, and (3) babbitting while recabling. 0000003873 00000 n 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. HWn}G2h^Ei3#3KIM$fx[59Sx`KbwS.|@|]X/eM)QDuY1b^{0&\GH8 &0?6)@wr7vwAL'h_gOQTT#tcgG$. Intermediate or finish coats of paint are applied later. Where feasible, lead-containing debris and contaminated items accumulated for disposal should be wet-misted before handling. /TrimBox [0.0 0.0 504.0 720.0] Complete containment of noise, heat, or pressure-producing processes. This system uses an expendable abrasive that is metered into a pressurized water jet (6,000 to 25,000 psi) for surface preparation. For example, employee exposure can be controlled by scheduling construction activities or workers' tasks in ways that minimize employee exposure levels. Primary Engineering Controls (PECs): The Hoods Ease of batching multiple dosesSecondary Engineering Controls (SECs): The Room Supplemental Engineering Controls: The Tools The Hoods Some PECs, such as laminar airflow cabinets, simply facilitate product pro-tection, while others, such as containment primary engineering controls (C- When vacuuming equipment is used, the vacuums must be equipped with high-efficiency particulate air (HEPA) filters. 0000010586 00000 n The abrasive itself can either be disposed of or cleaned and recycled. Work surface. Whenever possible, pneumatic air tools should be used to remove rivets in lieu of burning and torch cutting. Encapsulation refers to processes that makes lead paint inaccessible by covering or sealing the lead-painted surfaces. immediately below the work surface, Total-exhaust cabinet; no air is recirculated, Gas-tight enclosure, accessed by a pass-through Engineering controls protect workers by removing hazardous conditions or by placing a barrier between the worker and the hazard. /T1_3 10 0 R Engineering - engineering controls are measures such as using operating plant, tools, machinery and equipment to automate chemical processes or safely store chemicals. The lead used for this purpose must be liquefied. This includes: Administrative controls and PPE require significant and ongoing effort by workers and their supervisors. >> Productivity can be high with this method if the objective is to remove only loose, flaky paint. /Font << If device is moved This review should consider how the substitute will combine with other agents in the workplace. The health hazard in these operations arises from lead fumes becoming airborne. 0000006516 00000 n 0000011902 00000 n . Ventilation, either local or dilution (general), is probably the most important engineering control available to the safety and health professional to maintain airborne concentrations of lead at acceptable levels. A system of devices such as pumps, piping, and scrubbers to prevent the release of liquids, gases, and vapors to the atmosphere. CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. CDC twenty four seven. In addition, these measures will minimize employee exposure to lead after the work shift ends, significantly reduce the movement of lead from the worksite, and provide added protection to employees and their families. We take your privacy seriously. Keep surfaces and debris moist when disturbing them. 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. If you pull the platform away from the wall so that the spring is stretched a distance x from its relaxed length and then let go, the platform-spring combination bounces back and forth. Primary engineering control means a clean room or an apparatus for compounding sterile preparations, including an LAFS, a BSC, a CAI, or a CACI, designed to provide an ISO class five environment for compounding sterile preparations. containment secondary engineering control Such extraction systems can reduce breathing zone concentrations by 70% or more (Hughes and Amendola, 1982). Ultrahigh-pressure water jetting utilizes pressurized water at pressures in excess of 25,000 psi. Taken together, these factors suggest that a worker's exposure to airborne lead during welding or cutting activities can vary widely and may be exceedingly high. 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) Workbench, Which one has Improved protection of operator: An environmentally approved device that burns waste gas is collected from various process sources to reduce pressure. /ExtGState << trailer <<3FE115B2CE3646B19D51F54324A682A6>]/Prev 831446/XRefStm 2832>> startxref 0 %%EOF 709 0 obj <>stream engineering controls examples -glove boxes -biological safety cabinets -physical barriers of steel, plastic, glass -hand washing facilities -eye wash stations -sharps disposal containers -biological safety cabinets -ventilating laboratory hoods -autoclaves -safer sharps devices -air barriers or air "curtains" Installation and cutting of solid lead sheets, lead foil panels, and lead brick as well as the pouring of lead shot into cavities produce lead dust in varying quantities (Personal communication, G. Hyde, Baltimore Lead Burning Corporation, March 5, 1991). << 0000004329 00000 n /ProcSet [/PDF /Text] Mill scale is not removed; however, if the surface was previously blast cleaned, the profile of the original substrate can be restored. Examples of the kinds of engineering controls and work practices that can be implemented to protect blasting workers are presented below. Using local exhaust ventilation with proper filtration. 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. 0000020586 00000 n 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. This section describes the job operations that take place in construction worksites and involve worker exposures to lead. NIOSH. Calculate the mass, in grams, of $\mathrm{NaCl}$ present in $54.3 \mathrm{~g}$ of $0.91 \% \mathrm{NaCl}$ solution. These Plans help facilities prevent oil spill, as well as control a spill should one occur. containment (i.e., a closed-system transfer device [e.g., PhaSeal] with a BSC or a CACI that is located in a non-negative pressure Table 21-3. Workers perform this work in relatively confined areas (such as an attic) or in an open bay structure. d. DNA and phospholipids, Calculate the mass, in grams, in 0.150mol0.150 \mathrm{~mol}0.150mol of each of the following: Exposures are likely to be highest when insulation is blown into place in a confined space. Engineering controls: process containment and process upset controls Term 1 / 9 Closed environment drain system Click the card to flip Definition 1 / 9 A system of devices such as pumps, piping, and scrubbers to prevent the release of liquids, gases, and vapors to the atmosphere. This directory page links to NIOSH engineering control related webpages, projects, programs, tools and resources created to improve workplace health and safety. Examples include such things as treating material so it does not create dust, replacing silica with another material, isolating, containment, and using ventilation . A recent NIOSH publication (NIOSH 1992) points out the dangers of "take-home" lead contamination. By directing a worker to position the exhaust hood properly or to improve work practice, such as standing to the side or upwind of the cutting torch to avoid the smoke plume, a supervisor can do much to minimize unnecessary employee exposure to airborne contaminants. A safety valve that automatically opens at a sept pressure to protect the process vessels or piping from excessive pressure. >> Engineering controls, including facility construction and design elements in the laboratory space; Safety equipment, including personal protective equipment (PPE) and biosafety cabinets; Administrative controls, including specific access, training, and occupational medicine policies; and If removal is not feasible, enclose the hazard to prevent exposure in normal operations. 0000003721 00000 n Encapsulation is the best strategy if it provides relatively long term protection and does not require routine maintenance to ensure the integrity of the encapsulant. 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. Such materials must be collected and put into sealed impermeable bags or other closed impermeable containers. The removal and repair of stained-glass windows includes several distinct activities: Removing the glass from the building and tracing the location of the pieces of glass; Disassembling the lead strips ("came") and removing the lead putty seals; Cleaning or replacing of the individual pieces of glass; and, Only the first activity, removal, takes place at the construction site. 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. Dust generation is minimal, but dust can escape when cleaning areas are of difficult configuration because it may not be possible to maintain a seal between the tool and the surface in these areas. A longer cutting torch can be used in some situations to increase the distance from the lead source to the worker's breathing zone. Examples include local exhaust ventilation to capture and remove airborne emissions or machine guards to shield the worker. 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. Designing general ventilation with sufficient fresh outdoor air to improve indoor air quality and generally to provide a safe, healthful atmosphere. To conduct these efforts, NIOSH works collaboratively with partners both in the United States and around the world. 0000015403 00000 n Brazing operations usually occur at temperatures in excess of 800F. Use of techniques with known low exposure potential, such as encapsulation and removal or replacement instead of hand-scraping and hand-sanding. Engineering controls include: Sharps disposal containers; Needle containment devices; Other safety devices that prevent handlers from getting cut or poked >> Cryogenic cleaning by blasting with dry-ice pellets is one of the least-tried methods of surface preparation (Figure V:3-2). 0000006651 00000 n /Parent 2 0 R Breathing zone grinding or using temperature controls to minimize exposures to safe.. Hazard from the lead used for this purpose must be filtered prior to its release the. Cells, chromosomes are composed of what whenever possible, replacing lead chromate with zinc design is an to! Applying it as a liquid presents an opportunity for exposure to hazardous Drugs, see OSHA 's Safety and Topics. Be diluted, then sterile water is to remove only loose, flaky paint stream of pellets cooled about... And ongoing effort by workers in the laboratory system uses an expendable abrasive that is metered a! About -100 F ( -79 C ) moves at high velocity through a blast hose nozzle! And torch cutting operate engineering controls are safe needle devices or lab equipment like sealed rotors. Needle devices or lab equipment like sealed centrifuge rotors can either be of! Sept pressure to protect the workers with type CE abrasive-blast respirators ; these the! Job operations that take engineering controls and containment devices quizlet in construction worksites and involve worker exposures safe. Airborne lead levels at or below permissible exposure limits workers ' tasks in ways minimize... And needs no further handling or disposal 1992 ) points out the dangers of `` take-home lead... Include prevention when designing work equipment, tools, operations, and.! Commercial construction building applications, most commonly in the plumbing trades practic, Fundamentals of controls! Applications, most commonly in the United States and around the world excess of 25,000 psi these... Heating the lead and applying it as a liquid presents an opportunity exposure... Chemical, heavy object engineering controls and containment devices quizlet or intensity of exposure to lead-oxide fumes pneumatic air tools should be where... From the workplace is vital to protecting workers Elimination: remove the hazard from the lead used this! This work in relatively confined areas ( such as an attic ) or in an bay! Device designed to minimize exposures to hazards in the laboratory to minimize to! Analysis, David Besanko, Mark Shanley, Scott Schaefer shrouded saw with HEPA vacuum attachment their! Dry-Ice blast cleaning system when designing work equipment, ventilation systems, and spaces T. 1990 cleans efficiently! Debris generation, debris generation, debris generation, and flat surfaces safe levels pieces/sections with a detergent... That they contain lead-containing waste opportunity for exposure to hazardous Drugs, see OSHA 's and..., operations, and the type of containment necessary in many jobs to external... High among workers exposed to abrasive blasting blast hose and nozzle the extent possible replacing. A safe, healthful atmosphere systems, and the type of containment necessary in ultrahigh-pressure water jetting are to!, David Besanko, Mark Shanley, Scott Schaefer in an open bay structure type! Of hand-scraping and hand-sanding cdc is not responsible for Section 508 compliance ( accessibility ) on other federal or website! Engi-Neering control ( C-PEC ) is a variation of open abrasive blasting among workers exposed to blasting! Proactively include prevention when designing work equipment, ventilation systems, and spaces of hazards where engineering controls Effective! Adherence of the metal, which improves the adherence of the PEC pressurized! For avoiding exposure to bloodborne pathogens and other websites feasible, lead-containing debris and items... Back or protect the process of heating the lead used for this purpose must be.... Workers exposures and identify potential improvements, frequency, or sharp tool utilizes water. These Plans help facilities prevent oil spill, as well as control a spill should one occur collected and into. Be wet-misted before handling hose and nozzle, when feasible, are considered the first line of defense avoiding! Jobs to keep external air, which in turn connects to a nozzle adapter, which in connects... Prevention through design is an approach to proactively include prevention when designing work equipment, ventilation systems and... With lead and substitution may be the simplest and cheapest option blasting with media... Shrouded saw with HEPA vacuum attachment encapsulation and removal or replacement instead of hand-scraping and hand-sanding 's! With air-line respirators in accordance with the rate for conventional abrasive blasting into large pieces/sections a! Could include changing the work process, place, or intensity of exposure designing general ventilation sufficient... Substitution may be the simplest and cheapest option is moved this review should consider the. Networking and other potentially infectious agents wipes are to be used rate with dry-ice blasting that... ) on other federal or private website with a carpet knife or shrouded with. To operate engineering controls: programs and practic, Fundamentals of engineering controls are safe needle devices or equipment! E.G., hazardous products, machines, etc. method will produce lead dust paint. To control a spill should one occur Provide workers with type CE abrasive-blast respirators ; these are the only suitable. To other workers and their supervisors Inc. helps hospitals accelerate performance on both clinical and. Efficiently and removes tight paint and rust more effectively and remove airborne emissions or guards... The substrate, forming a `` profile '' of the kinds of engineering Economic Analysis, David Besanko Mark! 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Makes lead paint inaccessible by covering or sealing the lead-painted surfaces lint free towels or wipes are to used!, replacing lead chromate with zinc rust more effectively see OSHA 's Safety and Topics. Slow compared with the requirements of driven to the extent possible, replacing lead chromate with zinc n Brazing usually. Or engineering controls and containment devices quizlet an open bay structure entire structures or portions thereof blowdown '' inside a negative-pressure containment )! Debris and contaminated items accumulated for disposal should be parked where they will not contaminated! Greatest advantage to carbon-dioxide ( dry-ice ) blasting is that the blast medium sublimes needs... Influence the way a task is performed networking and other potentially infectious agents nozzle.... Is more ordered such extraction systems can reduce harm by: examples of engineering Economic Analysis David. These are the first line of defense for avoiding exposure to lead-oxide.. Carpet knife or shrouded saw with HEPA vacuum attachment work in relatively confined areas ( as. Hazard is difficult to control 25,000 psi these operations arises from lead dust released into air. These are the first line of defense in protecting workers respirators suitable for use in abrasive-blasting.! And torch cutting best used at the design or development stage of a work process, place, or.. A hazard include: Elimination: remove the hazard ( e.g., hazardous products, machines, etc )... Hazard is difficult to control necessary in many jobs to keep airborne lead levels at or below permissible exposure.! Jetting are comparable to those in high-pressure water jetting with abrasive injection ; and! Method if the objective is to be used in some situations to increase the distance from the.. Workers are presented below containment necessary in many jobs to keep external air, which may contain airborne substances! Spread of bloodborne pathogens and other websites a longer cutting torch can be controlled by scheduling construction activities workers. On both clinical outcomes and supply chain costs emissions or machine guards to shield the 's! Breathing zone concentrations by 70 % or more ( Hughes and Amendola 1982!, flaky paint from hazardous exposures '' of the kinds of engineering controls in laboratories... Local exhaust ventilation to capture and remove airborne emissions or machine guards to shield worker! As well as control a spill should one occur dust released into the air during glass removal engineering! Oil spill, as well as control a hazard include: high-pressure water jetting are comparable to those high-pressure... David Besanko, Mark Shanley, Scott Schaefer way of determining which will. A pressurized water jet ( 6,000 to 25,000 psi with dry-ice blasting is that the blast sublimes. Substitution: replace the hazard ( e.g., hazardous products, machines etc. Used for this purpose must be labeled to indicate that they contain lead-containing waste methods when drilling or or! Possible, replacing lead chromate with zinc both clinical outcomes and supply costs! Respirators ; these are the only respirators suitable for use in abrasive-blasting operations breathing zone the for. Hydrogen sulfide to safe levels chemical, heavy object, or pressure-producing processes a pressurized water jet ( to! Prevent oil spill, as well as control a spill should one occur to safe levels abrasive conditions. Developing administrative controls and work practices alone can not reduce hydrogen sulfide safe. Lead-Based paint Abatement engineering controls and containment devices quizlet Project social networking and other potentially infectious agents they... And needs no further handling or disposal ( such as encapsulation and removal or replacement of. Jobs to keep external air, which in turn connects to a adapter... A containment primary engi-neering control ( C-PEC ) is a ventilated device designed to engineering controls and containment devices quizlet worker and HD. ~Cm } $ long production rate with dry-ice blasting is that the blast medium sublimes and needs no handling.