Total Organic Carbon is the measure of how much organic carbon there is in a sample. TOC is often analysed by finding the total amount of carbon in a sample and then finding the ‘inorganic carbon’, the amount of carbon dioxide and carbonic acid salts, and then subtracting the IC value from the TC value. This is a requirement for WAC certificates and can give you an idea of the amount of hydrocarbons. Inert waste has a TOC limit of 3%, stable and non-reactive non-hazardous waste has a limit of 5% and hazardous waste has a limit of 6%.
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