This International Standard specifies a method of extracting trace elements from soil at approximately pH 0,5 using a dilute nitric acid solution. Using this method the potential environmental available trace elements as defined in ISO 17402 is extracted. The method is applicable for all soils and soil like materials.
GSO ISO 17586:2017 history
2017GSO ISO 17586:2017 Soil quality -- Extraction of trace elements using dilute nitric acid