ISO 16308:2014规定了一种测定饮用水、地下水和地表水中草甘膦及其主要代谢物氨基甲基膦酸（AMPA）的溶解分数的方法，浓度为0.03μg/l至1.5μg/l。该方法不适用于海水或咸水。该方法可适用于其他类型的水域，前提是该方法已针对每种情况进行了验证。

ISO 16308:2014 specifies a method for the determination of dissolved fraction of glyphosate and its major metabolite, aminomethylphosphonic acid (AMPA), in drinking water, ground water, and surface water at concentrations of 0,03 μg/l to 1,5 μg/l. It does not apply to marine or salty water. This method can be applicable to other types of waters, provided the method is validated for each case.