Suppliers and users of Catalytic Converters must take necessary precautions to protect workers from Refractory Ceramic Fibres.

The fibre mats contained within catalytic converters (and diesel particulate filters) can contain hazardous fibres. Refractory Ceramic Fibres (RCF) are classified as a Category 1B carcinogen and end of life catalytic converters should therefore be treated as hazardous waste. 

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