Le présent document traite de la performance et de l''évaluation des essais cinétiques pour des déchets sulfurés lorsque des essais antérieurs (notamment le bilan acide-base) montrent leur tendance à l''acidité ou lorsque le résultat desdits essais ne permet pas de tirer des conclusions. Il aborde également la question du drainage issu de matériaux sulfurés qui a de bonnes chances d''être neutralisé par un tampon, mais qui va produire un drainage neutre risquant d''être affecté par l''oxydation des minéraux sulfurés.
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