NF EN 1981

Copper and copper alloys - Master alloys

Le présent document spécifie les compositions chimiques des alliages-mères à base de cuivre destinés à la fabrication, à la désoxydation ou à la désulfuration des alliages moulés ou corroyés, et notamment ceux à base de cuivre, fournis sous forme de lingots, de barreaux entaillés, de plaquettes entaillées de granules ou débris de pièces. Il comprend également une procédure pour l'échantillonnage des alliages-mères pour contrôle de la conformité aux prescriptions de composition chimique et donne une méthode de détermination de la teneur en oxyde de chrome (III) dans les alliages-mères en cuivre-chrome.

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