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ISO 11971:2020

Steel and iron castings — Visual testing of surface quality

Jan 13, 2020

General information

90.20     Jan 15, 2025

ISO

ISO/TC 17/SC 11

International Standard

77.040.20     77.140.80  

English  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 11971:2008

NOW

PUBLISHED
ISO 11971:2020
90.20 Standard under periodical review
Jan 15, 2025

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