EN 10179:1989
(Main)Chemical analysis of ferrous materials - Determination of nitrogen (trace mounts) in steel - Spectrophotometric method
Chemical analysis of ferrous materials - Determination of nitrogen (trace mounts) in steel - Spectrophotometric method
This EURONORM specifies a method for the spectrophotometric determination of nitrogen in steels.
The method is primarily intended for the determination of total nitrogen in very low nitrogen non-alloy steels. It may be used, however, for any low nitrogen ferrous alloy that is soluble in hydrochloric acid provided that the acid-resistant form of silicon nitride is not present. This highly resistant nitride has been found only in samples of silicon steels manufactured without aluminium addition and then only in sheet material.
The method is applicable to nitrogen contents from 0,0005 to 0,005 % (m/m).
NOTE The method has also been successfully applied to a pure iron with a nitrogen content of 0,0038 % (m/m) - see Annex.
Chemische Analyse von Eisen- und Stahlwerkstoffen - Bestimmung von Stickstoff (Spuren-Gehalte) in Stahl - Photometrisches Verfahren
Analyse chimique des matériaux sidérurgiques - Dosage de l'azote (à l'état de traces) dans les aciers - Méthode spectrophotométrique
Kemična analiza železovih zlitin - Določevanje dušika (v sledeh) v jeklih - Spektrofotometrična metoda
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chemische Analyse von Eisen- und Stahlwerkstoffen - Bestimmung von Stickstoff (Spuren-Gehalte) in Stahl - Photometrisches VerfahrenAnalyse chimique des matériaux sidérurgiques - Dosage de l'azote (a l'état de traces) dans les aciers - Méthode spectrophotométriqueChemical analysis of ferrous materials - Determination of nitrogen (trace mounts) in s
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