Skip to main content

ISO 4545:1993

Withdrawn Date published:

Warning: Withdrawn Standard. This document has been withdrawn without replacement. You may wish to search for a more up to date equivalent.

Metallic materials — Hardness test — Knoop test

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.

Get this standard Prices exclude GST
PDF ( Single user document)
$91.24 NZD
HardCopy
$91.24 NZD
Networkable PDF
Price varies
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 4

Keep me up-to-date

Sign up to receive updates when there are changes to this standard

Related Information

Similar Standards

  • BS 131-1:1961

    Methods for notched bar tests, The Izod impact test on metals

  • BS 131-4:1972

    Notched bar tests, Calibration of pendulum impact testing machines for metals

  • BS 131-5:1965

    Notched bar tests, Determination of crystallinity

  • BS 131-6:1998

    Notched bar tests, Method for precision determination of Charpy V-notch impact energies for metals

Preview only close
Prev {{ page }}/ {{ numPages }} Next
Preview only close
Prev {{ page }}/ {{ numPages }} Next
Pages: 4

ISO 4545:1993

Get this standard Prices exclude GST
PDF ( Single user document)
$91.24 NZD
HardCopy
$91.24 NZD
Networkable PDF
Price varies

Request to add this standard to your subscription

ISO 4545:1993

Price varies
Online library subscription

Click "Send request for subscription" to request for your Account Administrator to add this standard to your subscripiton.

Cancel