ISO 16720:2005, Soil quality – Pretreatment of samples by freeze-drying for subsequent analysis

ISO 16720:2005 specifies a method for pretreatment of soil samples by freeze-drying for subsequent analysis. ISO 16720:2005 is applicable to soil samples for subsequent determination of elements or organic compounds recognized as non-volatile under freeze-drying conditions. Generally, ISO 16720:2005 can also be applied to samples from sludges and sediments. This method is also applicable as a first step for the determination of dry matter (or water) content, for instance in the case of samples with high water content. This title may contain less than 24 pages of technical content.