• DIN EN ISO 12782-4 : 2012

    SOIL QUALITY - PARAMETERS FOR GEOCHEMICAL MODELLING OF LEACHING AND SPECIATION OF CONSTITUENTS IN SOILS AND MATERIALS - PART 4: EXTRACTION OF HUMIC SUBSTANCES FROM SOLID SAMPLES (ISO 12782-4:2012)

    German Institute for Standardisation (Deutsches Institut für Normung)

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