EN ISO 23753-2:2011

Name: EN ISO 23753-2:2011
Brand: CEN

Superseded

View Superseded by

Soil Quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT) (ISO 23753-2:2005)

Superseded date

03-28-2019

Published date

07-13-2011

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Reagents and materials
5 Apparatus
6 Procedure
7 Calculation
8 Test report
Bibliography

ISO 23753-2:2005 specifies a method for determining soil dehydrogenase activity using 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride (INT). As the INT reduction is less sensitive to O2, the method is more reproducible than the TTC-method described in ISO 23753-1. It is not applicable for determining the dehydrogenase activity in upper layers (L, F, H horizons) of forest humus forms with low microbial activity (e.g. mor), or in soils showing reducing properties (e.g. waterlogged soils).

Committee	CEN/TC 444
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN ISO 23753-2:2019

Standards	Relationship
ISO 23753-2:2005	Identical
PN EN ISO 23753-2 : 2019-04	Identical
SN EN ISO 23753-2:2011	Identical
NEN EN ISO 23753-2 : 2011	Identical
I.S. EN ISO 23753-2:2011	Identical
DIN EN ISO 23753-2:2011-09	Identical
NBN EN ISO 23753-2 : 2011	Identical
BS EN ISO 23753-2:2011	Identical
NF EN ISO 23753-2 : 2011	Identical
I.S. EN ISO 23753-2:2019	Identical
NS EN ISO 23753-2 : 2011	Identical
UNI EN ISO 23753-2 : 2011	Identical
BS EN ISO 23753-2:2019	Identical
PN EN ISO 23753-2 : 2011	Identical
ISO 23753-2:2019	Identical
ONORM EN ISO 23753-2 : 2011	Identical
UNE-EN ISO 23753-2:2011	Identical

ISO 11259:1998	Soil quality Simplified soil description
ISO 10693:1995	Soil quality Determination of carbonate content Volumetric method
ISO 10381-6:2009	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 10390:2005	Soil quality Determination of pH