Reference number
ISO 4291:1985
International Standard
ISO 4291:1985
Methods for the assessement of departure from roundness — Measurement of variations in radius
Edition 1
1985-09
Read sample
ISO 4291:1985
10135
Published (Edition 1, 1985)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 4291:1985

ISO 4291:1985
10135
Language
Format
CHF 96
Convert Swiss francs (CHF) to your currency

Abstract

Establishes types of contact (stylus) instruments to be used, recommendations for their use, procedures for calibration of instruments and verification of their characteristics. Applies to a profile transformation, obtained under reference conditions. Departures from roundness of the measured profile, procedure, calibration and determination of systematic errors of rotation are dealt with in annexes A to D, respectively. Annex E gives rules for plotting and reading polar graphs. The position of the least squares centre can be calculated from a simple explicit equation given in annex F.

General information

  •  : Published
     : 1985-09
    : International Standard confirmed [90.93]
  •  : 1
     : 18
  • ISO/TC 213
    17.040.20 
  • RSS updates

Life cycle

Got a question?

Check out our Help and Support