NF EN ISO 9556
Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace
The method is applicable to carbon contents between 0,003% (m/m) and 4,5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. The annexes give additional information on the international co-operative tests, a graphical representation of precision data and features of induction furnaces and carbon analysers.
The method is applicable to carbon contents between 0,003% (m/m) and 4,5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. The annexes give additional information on the international co-operative tests, a graphical representation of precision data and features of induction furnaces and carbon analysers.
La présente norme décrit une méthode de dosage, basée sur la combustion dans un four à induction d'une prise d'essai, suivie de la transformation du carbone en dioxyde et/ou monoxyde de carbone et de la mesure de l'absorption de ce composé dans l'infrarouge. Le domaine des teneurs couvert s'étend de 0,003 % à 4,5 % dans les aciers et les fontes. Cette méthode, dite instrumentale, complète utilement la méthode classique de la norme NF A 06-301 "Dosage gravimétrique du carbone après combustion dans un courant d'oxygène".
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