7 . Post-installation
Engineered stone that is already installed in the home or workplace is not a risk to health unless it is disturbed through mechanical processes such as cutting , sanding , grinding , drilling or polishing .
Workers undertaking maintenance or refurbishment of engineered stone using mechanical processes may be exposed to silica dust . This type of work should only be carried out by workers who have had suitable training .
The PCBU must manage risks to health and safety associated with the maintenance or refurbishment of engineered stone . One effective way to manage the risk is to conduct this work in a controlled exclusion zone with additional controls , as outlined in Part 4.4 of this Code .
When removing installed engineered stone in an area containing engineered stone , the PCBU should carefully plan before work commences so it can be carried out safely . Planning involves identifying hazards , assessing risks and determining appropriate control measures in consultation with all persons involved in the work .
The PCBU must consider not only the direct hazards that are associated with this work , but also those hazards related to the work activity and work environment .
When undertaking removal work , a risk assessment is often the best way to determine the measures that should be implemented to control risks . Refer to Part 4 of this Code for information on how to manage and control the risks from working with engineered stone .
Managing the risks of respirable crystalline silica from engineered stone in the workplace - Code of Practice 50 of 57