There are three distinct suites of WAC testing, with the parameters and associated limits dependent upon both the class of waste and the type of landfill for which the waste is destined. The three classes are Inert waste landfill, Stable non-reactive hazardous waste in non-hazardous landfill and Hazardous waste landfill. All three suites require that a leaching procedure be carried out according to BS EN 12457, with the leachate being analysed for a number of inorganic parameters. The waste is also analysed for additional parameters, largely dependent on the class of the waste.
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