Published
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.
PUBLISHED
ISO 16720:2005
90.20
Standard under periodical review
Oct 15, 2025
Soil quality - Pretreatment of samples by freeze-drying for subsequent analysis (ISO 16720:2005)
60.60 Standard published
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