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Standard [WITHDRAWN]

DIN EN ISO 23753-1:2011-09

Soil quality - Determination of dehydrogenase activity in soil - Part 1: Method using triphenyltetrazolium chloride (TTC) (ISO 23753-1:2005); German version EN ISO 23753-1:2011

German title
Bodenbeschaffenheit - Bestimmung der Dehydrogenaseaktivität in Böden - Teil 1: Verfahren mit Triphenyltetrazoliumchlorid (TTC) (ISO 23753-1:2005); Deutsche Fassung EN ISO 23753-1:2011
Publication date
2011-09
Original language
German
Pages
13

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Publication date
2011-09
Original language
German
Pages
13
DOI
https://dx.doi.org/10.31030/1804912

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Overview

This International Standard specifies a method for determining the dehydrogenase activity in soil using 2,3,5-triphenyltetrazolium chloride (TTC). This standard is not applicable for determining the dehydrogenase activity in the upper layers (L, F, H horizons) of forest humus forms with low microbial activity (for example, mor), or in soils showing reducing properties (for example, waterlogged soils). The soil microflora is responsible for the decomposition and conversion of organic substances, aggregation stability and the carbon, nitrogen, sulfur and phosphorus cycles. Dehydrogenases, as respiratory chain enzymes, play a major role in the energy production by organisms. They oxidize organic compounds by transferring two hydrogen atoms. Dehydrogenases are essential components of the enzyme system of microorganisms. Dehydrogenase activity can therefore be used as an indicator of biological redox systems and as a measure of microbial activity in the soil. The text of ISO 23753-1:2005 has been prepared by Technical Committee ISO/TC 190 "Soil quality" of the International Organization of standardization (ISO) and has been adopted as EN ISO 23753-1:2011 by CEN/TC 345 "Characterization of soils", the secretariat of which is held by NEN. The text of ISO 23753-1:2005 has been approved by CEN as EN ISO 23753-1:2011 without any alterations. The Committee responsible for this standard is NA 119-01-02-04 UA "Biologische Verfahren" ("Biological Methods") at DIN.

Content
ICS
13.080.30
DOI
https://dx.doi.org/10.31030/1804912
Replacement amendments

This document replaces DIN ISO 23753-1:2006-04 .

This document has been replaced by: DIN EN ISO 23753-1:2019-07 .

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