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This Part of EN incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of those publications apply to this Part of EN , only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
EN , ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts. ENV , Plain end steel tubes, welded and seamless General tables of dimensions and masses per unit length. ISO , Parallel shank jobber and stub series drills and Morse taper shank drills.
This inspection shall be carried out by suitably trained, qualified and competent NDT personnel approved by the manufacturer. The surfaces shall be sufficiently free from foreign matter which would interfere with the validity of the test.
NOTE 1 It is recognized that there may be, as in the case of hydraulic testing under normal production conditions, a short length at both tube ends which cannot be tested. NOTE Square or rectangular tubes, used for structural purposes, with a maximum dimension across the diagonal of ,8 mm may also be tested using this technique. There is no restriction on the maximum outside diameter using these techniques. There is no restriction on the maximum outside diameter using this technique.
EN NOTE The above diagram is a simplified form of a multi-coil arrangement which may contain, for example, split primary coils, twin differential coils, calibrator coil, etc.
Figure 1 Simplified diagram of eddy current concentric coil technique 5 Reference standards 5. The dimensions of these standards should not be construed as the minimum size of imperfection detectable by such equipment. The test piece shall be of the same specified diameter, thickness and surface finish as the tube to be tested and shall have similar electromagnetic properties. NOTE In special cases, for example testing hot tubes or using equipment contained within a continuous tube mill, a modified calibration or calibration checking procedure can be used, by agreement.
The three holes shall be circumferentially displaced from each other, and shall be sufficiently separated longitudinally and from the extremities of the test piece so that clearly distinguishable signal indications are obtained.
Alternatively, only one hole shall be drilled through the full thickness of the test piece and during calibration and calibration checking the test piece shall be passed through the equipment with the hole positioned at 0, 90, and BSI EN NOTE The pancake coils used in a and b above take many forms, for example, single coil, multi-coil of various configurations, depending on the equipment used and other factors.
The means of introducing magnetic flux in a direction parallel to the major axis of the tube can be achieved by methods other than that shown above. The diameter of the reference hole or reference holes shall be verified and shall not exceed the specified drill diameter by more than 0,2 mm.
Table 1 Tube diameter related drill sizes to produce the reference holes.
DIN EN 10246-1:1996-04
Samusar Discontinued This item is no longer available. Quick Ship In stock items ship approximately business days. Automatic electromagnetic testing of seamless and welded except submerged arc welded ferromagnetic steel for verification of hydraulic leak-tightness Status: The Red document status indicator indicates that the document is an old version The document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at NBS. Essais non destructifs des tubes en acier. Discover also Certification, assessment, diagnosis Get a quote for certification of systems, products or services, and get certified. Click to learn more.
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Automatic electromagnetic testing of seamless and welded except submerged arc welded ferromagnetic steel tubes for verification of hydraulic leak-tightness. Select the first category of products searched and follow the instructions. Subscribe on standards — Read more. Bulb Information Bulbs Included: Build your compilation Add to a compilation Add to a compilation create a compilation without subscription wuthout subscription with subscription Build a watch list Add to the watch list. Build a watch list Add to the watch list. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards. ELK Seven Springs 4 products.
EN 10246-1 PDF