![]() ![]() Quartz is found in varying amounts in almost all types of rock, sands, clays, shales and gravel. In some circumstances, for example in the high temperatures of industrial furnaces and kilns, quartz may convert to another crystalline form of silica known as cristobalite. There are different crystalline forms of silica, with the most common being quartz. Contact your union for further advice.Ĭrystalline silica is one of the most abundant minerals in the earth's crust and is a major constituent of construction materials such as bricks, tiles and concrete.Ĭrystalline silica consists of silicon and oxygen atoms (SiO2) arranged in a regular crystalline structure. It is important that an approved workplace consultant who can also provide advice on workplace control strategies do monitoring. The results can then be used to establish effective control methods in work practices and ensure that they remain effective. It is important that there be monitoring of silica dust levels generated by the activity. Work with your workmates and your union to implement the VTHC Silica standard.The removal of residual dust generated by the work process must be done in a manner that will not make the dust airborne.Where there is likely to be excessive dust, all other workers should be cleared from the area so as prevent any unnecessary exposure.This training must be provided by an appropriately trained person before workers are required to use the PPE. Ensure the workers are thoroughly trained in the use and maintenance of respiratory protective devices. The type of respirator will depend on the amount of dust created by the process. ![]() ![]() Unfortunately, for many jobs, some form of respiratory protection will be required.Where dust extraction is not practical, wet methods should be utilised.should be fitted with dust extraction devices. Equipment used for cutting, grinding, etc.Check that materials used for abrasive blasting DO NOT contain more than 1% silica.Please find a printable VTHC Approved Safety Standard below to print out and take to your place of work if you believe you are at risk to exposure to silica dust as well as a poster to raise awareness of the issue in your workplace.Īs an OHS rep, you need to make your members aware of the risks of exposure to silica and ensure that the employer complies with his/her duties under the legislation to eliminate or reduce the risks. ![]()
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