ISO 9562:2004 水质 可吸附有机结合卤素（AOX）的测定

标准编号：ISO 9562:2004

中文名称：水质 可吸附有机结合卤素（AOX）的测定

英文名称：Water quality — Determination of adsorbable organically bound halogens (AOX)

发布日期：2004-09

标准范围

ISO 9562:2004规定了一种方法，用于直接测定活性炭上吸附的有机结合氯、溴和碘（以氯化物表示）在水中的含量，通常为每升10微克。本方法适用于无机氯离子浓度小于1 g/l的试样。分析前，对浓度较高的试样进行稀释。该方法也适用于含有悬浮固体的样品，其中卤素吸附在固体物质上（例如。g、 不溶性卤化物）。分析前对样品进行过滤，可单独测定溶解的和颗粒可吸附的有机结合卤素（AOX）。无机氯化物含量高的过滤样品可通过改进的方法进行分析[在高盐含量水中固相萃取后溶解的可吸附有机结合卤素（SPE-AOX）]。然而，通过这种改进方法获得的结果可能与所需方法的结果存在显著差异。

ISO 9562:2004 specifies a method for the direct determination of an amount of usually 10 micrograms per litre in water of organically bound chlorine, bromine and iodine (expressed as chloride) adsorbable on activated carbon.This method is applicable to test samples with concentrations of inorganic chloride ions of less than 1 g/l. Samples with higher concentrations are diluted prior to analysis.This method is also applicable to samples containing suspended solids where halogens are adsorbed onto the solid matter (e.g. insoluble halides). Filtration of the sample before analysis allows the separate determination of dissolved and particulate adsorbable organically bound halogens (AOX).Filtered samples with high inorganic chloride content can be analysed by a modified method [dissolved adsorbable organically bound halogens after solid phase extraction in waters with high salt content (SPE-AOX)]. However, results obtained by this modified method can differ significantly from those of the required method.

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