ISO 23753-1:2005Withdrawn

Soil quality — Determination of dehydrogenase activity in soils — Part 1: Method using triphenyltetrazolium chloride (TTC)

Qualité du sol — Détermination de l'activité des déshydrogénases dans les sols — Partie 1: Méthode au chlorure de triphényltétrazolium (CTT)

This edition has been replaced by ISO 23753-1:2019.

Abstract / scope

ISO 23753-1:2005 specifies a method for determining the dehydrogenase activity in soil using 2,3,5-triphenyltetrazolium chloride (TTC). It is not applicable for determining the dehydrogenase activity in the 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).

Life cycle

Replaced by

ISO 23753-1:2019PublishedSoil quality — Determination of dehydrogenases activity in soils — Part 1: Method using triphenyltetrazolium chloride (TTC)International Standard · Published 15 Feb 2019 · ISO/TC 190/SC 4