ISO 11261:1995
Soil quality — Determination of total nitrogen — Modified Kjeldahl method
Soil quality — Determination of total nitrogen — Modified Kjeldahl method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 9 марта 1995 г.
- Издание:
- ISO IS 11261 edition 1 version 1
- ICS:
- 13.080.10
Specifies a method for the determination of the total nitrogen (ammonium-N, nitrate-N, nitrite-N and organic N) content of a soil. Nitrogen in N-N-linkages, N-O-linkages and some heterocyclics (especially pyridine) is only partially determined. Applicable to all types of soils.
Abstract
Overview
ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method is an international standard that describes a reliable, widely-accepted procedure for assessing the total nitrogen content in soils. Developed by ISO Technical Committee TC 190/SC 3, this method is applicable to all soil types and enables accurate measurement of key nitrogen forms such as ammonium-N, nitrate-N, nitrite-N, and organic N. The standard recognizes some limitations, as nitrogen in N-N linkages, N-O linkages, and certain heterocyclic compounds (like pyridine) is only partially determined.
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