ISO 23753-2:2005
Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
- Standard No.
- ISO 23753-2:2005
- Release Date
- 2005
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 23753-2:2019
- Latest
- ISO 23753-2:2019/Amd 1:2020
- Scope
- This part of ISO 23753 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).
ISO 23753-2:2005 history
- 2020 ISO 23753-2:2019/Amd 1:2020 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT) — Amendment 1
- 2019 ISO 23753-2:2019 Soil quality — Determination of dehydrogenases activity in soils — Part 2: Method using iodotetrazolium chloride (INT)
- 2005 ISO 23753-2:2005 Soil quality - Determination of dehydrogenase activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
