NF EN ISO 21671/A1

Dentistry - Rotary polishers - Amendment 1

Le présent document modifie la norme NF EN ISO 21671:2006 et porte sur les points suivants : - mise à jour d'une référence normative (article 2) ; - le paragraphe 4.4 avec le remplacement du tableau 1 Code de couleur pour la taille des grains des abrasifs diamantés ; - l'ajout du paragraphe 4.5 Taille des grains des instruments utilisés pour polir ; - mise à jour de la bibliographie.

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