Enclosed equipment, for example, is tightly sealed and it is typically only opened for cleaning or maintenance. These methods aim to keep the chemical "in" and the worker "out" (or vice versa).Īn enclosure keeps a selected hazard "physically" away from the worker.
#Ctrl paint feedback manual
Use mechanical transportation rather than manual methods.
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Use automation - the less workers have to handle or use the materials, the less potential there is for exposure.Decrease the temperature of a process so that less vapour is released.These methods will reduce the amount of paint that is released into the air. Instead of conventional spray painting, try to dip, paint with a brush, or use "airless" spray paint methods.degreasing operations) to reduce solvent surface area and to lower solvent loss. Float "balls" on open-surface tanks that contain solvents (e.g.Use electric motors rather than diesel ones to eliminate diesel exhaust emissions.Use steam cleaning instead of solvent degreasing (but be sure to evaluate the potential high temperature hazard being introduced such as heat stress).Use a vacuum specifically designed for industrial workplaces and be sure to use appropriate filters, etc. Note: Never use a regular "household" vacuum cleaner, especially when cleaning toxic material such as lead, or asbestos.with a broom) to control dust and reduce the inhalation hazard. Use an appropriate vacuum or "wet method" instead of dry sweeping (e.g."Wet method" means that water is sprayed over a dusty surface to keep dust levels down or material is mixed with water to prevent dust from being created. Use wet methods rather than dry when drilling or grinding.Monitoring should be done before and as well as after the change is implemented to make sure the changes did, in fact, control the hazard. Process control involves changing the way a job activity or process is done to reduce the risk. Enclosure and/or isolation of emission source.The basic types of engineering controls are: Engineering controls are a very reliable way to control worker exposures as long as the controls are designed, used and maintained properly. For example, a dry, dusty powder may be a significant inhalation hazard but if this material can be purchased and used as pellets or crystals, there may be less dust in the air and therefore less exposure.Įngineering controls are methods that are built into the design of a plant, equipment or process to minimize the hazard. Remember, however, that you need to make sure the substitute chemical or substance is not causing any harmful effects, and to control and monitor exposures to make sure that the replacement chemical or substance is below occupational exposure limits.Īnother type of substitution includes using the same chemical but to use it in a different form. Synthetic grinding wheels such as aluminium oxide Sandstone grinding wheels (causes severe respiratory illness due to silica) Leaded glazes, paints, pigments (causes various effects on body) Organic solvents (causes various effects on body)
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Pesticides (causes various effects on body) The table below provides some examples: Instead Of:Ĭarbon tetrachloride (causes liver damage, cancer) The goal, obviously, is to choose a new chemical that is less hazardous than the original. It is sometimes grouped with elimination because, in effect, you are removing the first substance or hazard from the workplace. Substitution occurs when a new chemical or substance that is less hazardous is used instead of another chemical. However, regardless of the number of levels included, the hierarchy should be considered in the order presented (it is always best to try to eliminate the hazard first, etc).
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This systems level is placed in between engineering controls and administrative controls. For example, the CSA Standard 1002-12: Occupational health and safety – Hazard identification and elimination and risk assessment and control includes a level called "systems that increase awareness of potential hazards". Some sources may use a variation of this hierarchy. These methods are also known as the "hierarchy of control".