本文件规定了通过液体闪烁计数（LSC）直接在试样上或在化学分离后测量所有类型水样中14C活性浓度的方法。 本方法适用于供水/饮用水、雨水、地表水和地下水、海水以及冷却水、工业用水、生活和工业废水的测试样品。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies a method for the measurement of 14C activity concentration in all types of water samples by liquid scintillation counting (LSC) either directly on the test sample or following a chemical separation. The method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater.All current amendments available at time of purchase are included with the purchase of this document.