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NBN EN 12681 : 2003

Current

Current

The latest, up-to-date edition.

FOUNDING - RADIOGRAPHIC EXAMINATION

Published date

01-12-2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
   4.1 Protection against ionizing radiations
   4.2 General requirements
   4.3 Agreements
   4.4 Personnel qualification
5 Examination arrangements
   5.1 General
   5.2 Single wall radiography of plane areas
   5.3 Single wall radiography of curved areas
   5.4 Double wall radiography of plane and curved
       areas
   5.5 Choice of examination arrangements for
       complex geometries
   5.6 Acceptable examination area dimensions
   5.7 Explanation of symbols used in the figures
6 Choice of radiation source
7 Specific film system classes
8 Techniques for increasing the covered thickness
   range
   8.1 General
   8.2 Multiple film technique
   8.3 Contrast decreasing by higher radiation energy
   8.4 Beam hardening
   8.5 Thickness equalization
9 Radiographs
   9.1 Identification of radiograph, examined area,
       film position plan
   9.2 Marking of the test areas
   9.3 Overlap of films
10 Verification of image quality
11 Radiograph density requirements
12 Influence of crystalline structure
Annex A (informative) Possible discontinuities in
        castings - Reference radiographs and designation
Bibliography

Describes specific procedures for industrial X-radiation and gamma radiography for discontinuity detection purposes, using film techniques. These procedures are applicable to casting process, especially for steel, cast iron, magnesium, zinc, copper, nickel, aluminium, titanium and any alloys of them.

DocumentType
Standard
PublisherName
Belgian Standards
Status
Current

Standards Relationship
DIN EN 12681:2003-06 Identical
UNI EN 12681 : 2006 Identical
UNE-EN 12681:2003 Identical
BS EN 12681:2003 Identical
EN 12681 : 2003 Identical
I.S. EN 12681:2003 Identical

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