ISO 15685:2012 PDF

Scope: This International Standard specifies a rapid method for the determination of the potential rate of ammonium oxidation and inhibition of nitrification in soils. This method is suitable for all soils containing a population of nitrifying microorganisms. It can be used as a rapid screening test for monitoring soil quality and quality of wastes, and is suitable for testing the effects of cultivation methods, chemical substances [except volatiles, i.e. H > 1 (Henry’s constant)], extracts of biosolids and pollution in soils.

ISO 15685:2012 Referenced Document

ISO 10381-6 Soil quality - Sampling - Part 6: Guidance on the collection, handling and storage of soil under aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory
ISO 10390 Soil, treated biowaste and sludge - Determination of pH*， 2021-03-31 Update
ISO 10694 Soil quality - Determination of organic and total carbon after dry combustion (elementary analysis)
ISO 11260 Soil quality - Determination of effective cation exchange capacity and base saturation level using barium chloride solution*， 2018-05-01 Update
ISO 11261 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
ISO 11277 Soil quality*， 2024-03-01 Update
ISO 11465 Soil quality; determination of dry matter and water content on a mass basis; gravimetric method; technical corrigendum 1
ISO 14238 Soil quality - Biological methods - Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes*， 2012-08-01 Update
ISO 14256-2 Soil quality - Determination of nitrate, nitrite and ammonium in field-moist soils by extraction with potassium chloride solution - Part 2: Automated method with segmented flow analysis

2012 ISO 15685:2012 Soil quality - Determination of potential nitrification and inhibition of nitrification - Rapid test by ammonium oxidation
2004 ISO 15685:2004 Soil quality - Determination of potential nitrification and inhibition of nitrification - Rapid test by ammonium oxidation