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ISO 4291 : 1985

Methods for the assessement of departure from roundness — Measurement of variations in radius

Standard Details

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

Status : Published
Standard Type: Main
Document No: ISO 4291 : 1985
Document Year: 1985
Pages: 18
Edition: 1
  • Section Volume:
  • ISO/TC 213. Dimensional and geometrical product specifications and verification

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ISO 4291 : 1985
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