EN ISO 8503-4:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Test surfaces
7 Procedure for measurement of maximum peak-to-valley
  height, R[y]
8 Calculation and expression of results
9 Test report
Annex A (normative) - Test report for the calibration
        of ISO surface profile comparators and for the
        determination of surface profiles
Annex B (normative) - Form for recording surface profile
        measurements made in accordance with ISO 8503-4
Annex C (informative) - Guidance notes for the preparation
        and measurement of replicas
Bibliography

ISO 8503-4:2012 specifies the stylus instrument and describes the procedure for calibrating ISO surface profile comparators conforming to the requirements of ISO 8503-1.It is also applicable to the determination of the surface profile, within the range 20 μm to 200 μm, of essentially planar blast-cleaned steel. The determination can be carried out on a representative section of the blast-cleaned surface or, if direct observation of the surface is not feasible, on a replica of the surface.