NF EN ISO 16720
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.
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.
Le présent document spécifie une méthode de prétraitement par lyophilisation d'échantillons destinés à être soumis à une analyse ultérieure. Le présent document est applicable à des échantillons de sols qui vont être ensuite soumis à un dosage d'éléments ou de composés organiques reconnus comme étant non volatils dans les conditions de lyophilisation. D'une façon générale, ce document peut aussi être applicable à des échantillons de boues et de sédiments.
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