NF EN 10136

Steels and cast irons - Determination of nickel content - Flame atomic absorption spectrometric method (FAAS)

Le présent document spécifie une méthode par spectrométrie d'absorption atomique dans la flamme (SAAF) pour la détermination de la teneur en nickel des aciers et fontes. Il définit le principe, les réactifs, l'appareillage, l'échantillonnage et le mode opératoire. L'expression des résultats est déterminée par l'utilisation soit de la courbe d'étalonnage, soit de la méthode des extrêmes. La méthode s'applique aux teneurs en nickel comprises entre 0,004 pour cent et 2,0 pour cent . Elle peut être adaptée à des teneurs en nickel inférieures ou supérieures en modifiant la prise d'essai ou le procédé de dilution, sous réserve que les critères énoncés en 6.2.2 et 6.2.3 demeurent satisfaits.

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