本文件规定了土壤和土壤材料中高氯酸盐的测定方法。 在本文件规定的条件下，可测定低至0.1 mg/kg的浓度。 工作范围受到分离器柱离子交换能力的限制。可能需要将水提取物稀释至工作范围。

This document specifies a method for the determination of perchlorate in soil and soil materials. Under the conditions specified in this document, a concentration as low as 0,1 mg/kg can be determined. The working range is restricted by the ion-exchange capacity of the separator column. Dilution of the water extracts to the working range can be necessary.