How Often Should Exposure Control Plans Be Reviewed And Updated – The new crystalline silica standard for the building industry lowers the permissible exposure limit (PEL) for respirable crystalline silica from 50 to 50 micrograms per cubic meter of air over an 8-hour shift.
The U.S. Department of Labor’s Occupational Safety and Health Administration has delayed implementation of the crystalline silica standard for the construction industry for several months to take additional steps and provide training materials and guidance to employers. The implementation will begin in September.
How Often Should Exposure Control Plans Be Reviewed And Updated
In 2016, earlier this month, the Occupational Safety and Health Administration issued a final silica dust exposure rule to curb lung cancer, silicosis, chronic obstructive pulmonary disease, and kidney disease among American workers by limiting their exposure. Inhaled crystalline silica issued. This law consists of two standards, one for construction and the other for general and marine industries.
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OSHA estimates that this rule will save more than 600 lives and prevent more than 900 new cases of silicosis each year once its effects are fully understood. The final rule is expected to provide about $7.7 billion annually. US dollar net profit
About 2.3 million workers are exposed to respirable crystalline silica at work, including 2 million construction workers who drill, cut, crush, or grind silica-containing materials such as concrete and stone, and 300,000 workers in general industrial operations such as bricklaying. . industry Manufacturing, casting and hydraulic fracturing, also known as fracking.
Robert Bush Toll Employers must limit workers’ exposure to respirable crystalline silica and take other measures to protect workers. This standard provides flexible alternatives that allow employers to either use the control method listed in Table 1 or to measure worker exposure levels and independently decide which dust control measures to limit. PEL exposure is more appropriate in their workplace.
Most employers can limit exposure to harmful dust by using widely available equipment—usually using water to prevent dust from entering the air or ventilation to remove it from the air. The rule provides additional assistance to construction employers, many of whom operate small businesses, by including a table of specific controls they can follow to comply.
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Table 1 aligns common construction tasks with dust control methods so employers know exactly what to do to limit worker exposure to silica. Dust control measures listed in the table include effective methods such as using water to keep dust in the air or ventilation to collect dust. Some operations may also require a respirator.
One example of the table shows the necessary practice for hand-held chainsaws. If workers are cutting materials containing silica, they may use a saw with an internal system that pours water onto the saw blade. Water limits the amount of respirable crystalline silica that enters the air.
Employers who properly follow Table 1 do not need to measure worker exposure to silica and are not subject to a PEL.
Manufacturers support the new silica fume regulations and continue to work with contractors to ensure they are in full compliance.
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“Bosch supports OSHA’s efforts to improve worker safety in the construction industry,” said David Pizzolatto, group marketing manager, Robert Bosch Instrumentation. The implementation date for stricter respirable silica dust levels has been pushed back 90 days to 2017. on September 23rd, which gives everyone more time to prepare. Clearly, the risk of exposure to silica dust still exists, and this later effective date provides more time for employers to meet these requirements and ensure worker safety. While these are federal guidelines, we are seeing some parts of the country, including California, continue to meet the original 2017 goal. June 23 implementation dates Bush remains committed to working with the construction industry to educate the public.
According to Mark Michaels, director of product management for Husqvarna Construction Products, workers who cut concrete or brick are the most affected by the OSHA ruling, and those types of work use hand cutters or masonry saws. Many manufacturers use water in portable cutters to reduce dust. The trick is to use enough water to stick the dust, but not enough water to create too much slurry. If workers are cutting pavers or brick, you also don’t want too much water saturating the piece so that the grout doesn’t adhere properly. That is why manufacturers try to control the amount of water.
Vacuum cleaners are also used to reduce dust before it enters the air by removing crystalline silica from the environment. A vacuum cleaner is one of the best solutions for workers who need to work without water, such as when grinding concrete for surface preparation. Vacuum cleaners have many filters to prevent small particles and remove them easily.
Another way manufacturers can help employees is through training. Educate and educate workers about the safer use of silica and why it is important to use anti-dust equipment. The user manuals that come with this equipment are useful safety and training tools. These documents provide information on dust levels and how to determine specific levels.
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In addition to operator’s manuals, online manuals for hand-held chainsaws and other equipment are great for tailgate training. Professional concrete masons and masons as well as the rental customer can understand and benefit from these guides.
Contractors can also contact the manufacturer or their dealers who provide training and can usually accommodate individual contractors with demonstrations and safety tips.
Before the judgment is fully executed, there are a few things contractors can do to help with the transition.
The first step is to take a step back and start looking at how you or your operators work.
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According to Ben Cruz, director of marketing for Pulse-Buck, Table 1 of the OSHA Crystalline Silica Rule outlines dust control methods for many common operations. Stationary masonry saws, hand saws, back and power saws, as well as internal drills/drills, these tools must have an integrated water supply system that continuously delivers water to the blade or bit. Many saw and drill models come with this feature from the factory, and aftermarket kits are available for older models. This makes tracking these transactions relatively simple. However, other operations have different needs.
Things like cutting fiber cement board, dowels, drilling dowels, and using hand and stand mounted drills require a dust hood and connection to a dust collector. Pistons and grinding tools such as drills, as well as hand sanders and sanders can use water or dust.
An interesting point is the requirements in Table 1 for manual sanders to allow sanding for “other applications”. It states that the vacuum should be 25 cfm per inch of blade diameter. For example, Pulse-Bac recommends a Model 550 vacuum pump that produces 124 cfm to produce a 4- to 5-inch sanding disc that meets the standard in Table 1.
In addition to requiring the use of a dust collector, Table 1 also has requirements for the dust collector itself – the dust collector must provide the airflow recommended by the instrument manufacturer or greater and have a filter and a filter with an efficiency of 99 percent or greater. – Cleaning mechanism
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The second part of the requirement states that the vacuum cleaner must have a filter cleaning mechanism. OSHA found that fine silica dust quickly clogs standard vacuum cleaners. OSHA adopted the National Institute for Occupational Safety and Health’s position on the filter cleaning mechanism – the reverse pulse operation of the dust collector should avoid the need to remove the filters for cleaning.
A pump with an automatic pulse cleaning function eliminates the need to monitor and stop work for manual cleaning.
All contractors should be aware of the increasing importance of dust containment in the workplace. According to Lyndon Kelsey, Pullman Ermator’s North American sales manager, the product is about more than health and safety benefits. In recent years, the concrete industry has increasingly focused on the suppression and containment of concrete dust, both for worker safety and workplace cleanliness.
Safety is the main factor driving the demand for dust control in the workplace. With proper duster and hood and boot equipment, this set is possible. Another major reason for dust reduction and dust collection is to protect other building occupants during building renovations or additions. Connecting vacuum cleaners to equipment that collects dust during operation is very important! In addition to vacuum air flow (CFM) and water lift, filter type is very important for capturing the smallest and most harmful particles from the air. All vacuum cleaners must be equipped with HEPA (high-efficiency particulate air) filters with an efficiency of at least 99.95 x 0.5 microns, but the new regulation relaxes this requirement.
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OSHA has published a small entity compliance guide for construction, designed to help small business employers comply with the agency’s final rule to protect workers from exposure to respirable crystalline silica.
This guide describes in understandable language the steps employers should take to protect construction workers from the hazards of silica exposure.
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