International Organization for Standardization (ISO)
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ISO 14235:1998
Scope
This International Standard specifies a method for the spectrometric determination of organic carbon content in soil by oxidation in a sulfochromic medium.
This International Standard is applicable to all types of air-dry soil samples.
This International Standard is not applicable to soils containing mineral-reducing compounds, e.g. Cl or Fe. By convention the chloride content in the test portion shall not exceed 2 mg.
ISO 14235:1998 history
1998ISO 14235:1998 Soil quality - Determination of organic carbon by sulfochromic oxidation