ISO 8245:1999 水的质量.有机碳的总含量（TOC）和可溶液性有机碳（DOC）的测定指南.

标准编号：ISO 8245:1999

中文名称：水的质量.有机碳的总含量（TOC）和可溶液性有机碳（DOC）的测定指南.

英文名称：Water quality — Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC)

发布日期：1999-03

标准范围

本国际标准为总碳（TC）、总无机碳（TIC）和总碳的测定提供了指南饮用水、地下水、地表水、海水和废水中的总有机碳（TOC）。它还定义了术语和规定了水样的干扰、试剂和样品预处理。本国际标准中描述的方法适用于含有有机碳含量的水样范围为0.3 mg/l至1000 mg/l。下限浓度仅适用于特殊情况，例如饮用水，用高灵敏度仪器测量。在适当的条件下，可以确定更高的浓度稀释。本国际标准不涉及仪器相关规范。可净化的有机物，如苯、甲苯、环己烷和氯仿，也可以使用这个方法。当样品中存在氰化物、氰酸盐和元素碳颗粒（烟灰）时，可以一起测定用有机碳。

This International Standard gives guidance for the determination of total carbon (TC), total inorganic carbon (TIC) andtotal organic carbon (TOC) in drinking water, ground water, surface water, sea water and waste water. It also definesterms and specifies interferences, reagents, and sample pretreatment for water samples.The method described in this International Standard applies to water samples containing organic carbon contentranging from 0,3 mg/l to 1000 mg/l. The lower limit concentration is only applicable in special cases, for exampledrinking water, measured by highly sensitive instruments. Higher concentrations may be determined after appropriatedilution.This International Standard does not deal with the instrument-dependent specifications.Purgeable organic substances, such as benzene, toluene, cyclohexane and chloroform, can also be determined usingthis method.Cyanide, cyanate and particles of elemental carbon (soot), when present in the sample, can be determined togetherwith the organic carbon.

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