Numéro de référence
ISO 4545:1993
ISO 4545:1993
Matériaux métalliques — Essai de dureté — Essai Knoop
Edition 1
1993-03
Annulée
ISO 4545:1993
10455
Annulée (Edition 1, 1993)

Résumé

Specifies the method of Knoop hardness test covering test forces up to and including 9,807 N. The principle of the method is forcing a diamond indenter, in the form of a rhombic-based pyramid with specified angles between opposite faces at the vertex, into the surface of a test piece and measuring the long diagonal of the indentation left in the surface after removal of the test force. The Knoop hardness is proportional to the quotient obtained by dividing the test force by the projected area of the indentation.

Informations générales

  •  : Annulée
     : 1993-03
    : Annulation de la Norme internationale [95.99]
  •  : 1
     : 4
  • ISO/TC 164/SC 3
    77.040.10 
  • RSS mises à jour

Vous avez une question?

Consulter notre Aide et assistance