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This International Standard specifies a method for the detection and identification of a volatile organic contaminant in edible oils. It is applicable to the identification of volatile industrial chemicals in both crude and refined edible oils that are suspected of being contaminated. It also enables determination of the concentration of the contaminant. This International Standard is not applicable to the determination of the concentration of chemicals that may react with the edible oil or with one of its natural components. In these cases, the pesence of the contaminant may sometimes be established on a qualitative basis. Also,this International Standard is not applicable to on-volatilechemicals. This method has been shown to be applicable for the dentification of the following compound classes: - saturated halogenated hydrocarbons; - unsaturated halogenated hydrocarbons; - esters; aldehydes; alcohols; amines; ketones; ethers; - cyclicand aromatic compounds; - nitrogen compounds; - acrylates;etc. The method has been evaluated for concentrations in the range of 1mg/kg to10mg/kg.