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sklademVydáno: 2020-01-23
BS ISO 11971:2020
Steel and iron castings. Visual testing of surface quality
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| Označení normy: | BS ISO 11971:2020 |
| Počet stran: | 14 |
| Vydáno: | 2020-01-23 |
| ISBN: | 978 0 539 01968 1 |
| Status: | Standard |
DESCRIPTION
BS ISO 11971:2020
This standard BS ISO 11971:2020 Steel and iron castings. Visual testing of surface quality is classified in these ICS categories:
- 77.140.80 Iron and steel castings
- 77.040.20 Non-destructive testing of metals
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.