ISO 15685:2012
Soil quality — Determination of potential nitrification and inhibition of nitrification — Rapid test by ammonium oxidation
ISO 15685:2012 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.
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CVP_Secretariat_Loca
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling, storage and characterization of samples
8 Procedure
8.1 Testing soils
8.2 Testing the effect of chemicals
8.3 Testing polluted soils
8.4 Testing water extracts of biosolids
9 Calculations
10 Test report
Annex A (informative) Results of a laboratory ring test
Annex B (informative) Micro-scale measurement of potential nitrification rates
Bibliography
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CVP_Secretariat_Loca
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling, storage and characterization of samples
8 Procedure
8.1 Testing soils
8.2 Testing the effect of chemicals
8.3 Testing polluted soils
8.4 Testing water extracts of biosolids
9 Calculations
10 Test report
Annex A (informative) Results of a laboratory ring test
Annex B (informative) Micro-scale measurement of potential nitrification rates
Bibliography