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Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
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STANDARD published on 1.1.2002
Designation standards: ÖNORM EN 13654-1
Publication date standards: 1.1.2002
SKU: NS-758395
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM
Diese Europäische Norm legt ein Verfahren zur Bestimmung des "Gesamt"-Stickstoffs in Bodenverbesserungsmitteln und Kultursubstraten fest. Mit dem Kjeldahl-Verfahren wird der Gehalt an Ammonium-N, Nitrat-N, Nitrit-N und organischem Stickstoff in Bodenverbesserungsmitteln und Kultursubstraten bestimmt. Stickstoff in N-N-Verbindungen, N-O-Verbindungen und in einigen Heterocyclen (besonders Pyridin) wird nur teilweise bestimmt.
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