ISO 11971:2020
Steel and iron castings — Visual testing of surface quality
1.1 This document covers the acceptance criteria for the visual testing of the surface of steel and iron castings.
1.2 Acceptance levels utilize Bureau de Normalisation des Industries de la Fonderie (BNIF) and Steel Castings Research and Trade Association (SCRATA) or Casting Technology International (CTI) reference comparators for the visual determination of surface roughness and surface discontinuities described as follows:
— surface roughness;
— thermal dressing;
— mechanical dressing;
— non-metallic inclusions;
— gas porosity;
— fusion discontinuities;
— expansion discontinuities;
— metal inserts.
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Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Ordering information
5 Test method
6 Acceptance criteria
7 Test report
Annex A (informative)
Bibliography
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Foreword
Introduction
1 Scope
2 Normative References
3 Terms and Definitions
4 Ordering information
5 Test method
6 Acceptance criteria
7 Test report
Annex A (informative)
Bibliography