SIST EN 1971-1:2012
(Main)Copper and copper alloys - Eddy current test for measuring defects on seamless round copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface
Copper and copper alloys - Eddy current test for measuring defects on seamless round copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer surface
This European Standard specifies a procedure for the eddy current test with an encircling test coil for measuring defects on the outer surface of seamless round copper and copper alloy tubes. The eddy current test method(s) required, together with the size range and acceptance level, are defined in the relevant product standard. The choice of the method for eddy current test:
- with an encircling test coil on the outer surface according EN 1971-1; or
- with an internal test coil on the inner surface according EN 1971-2;
is at the discretion of the manufacturer if there are no other agreements between the purchaser and the supplier.
Kupfer und Kupferlegierungen - Wirbelstromprüfung an Rohren zur Messung von Fehlern an nahtlos gezogenen runden Rohren aus Kupfer und Kupferlegierungen - Teil 1: Prüfung mit umfassender Spule auf der Außenseite
Dieser Teil der Europäischen Norm legt ein Verfahren für die Wirbelstromprüfung von nahtlosen runden Rohren aus Kupfer und Kupferlegierungen mit umfassender Spule auf der Außenseite fest. ANMERKUNG Das(Die) geforderte(n) Wirbelstromprüfverfahren sowie der Maßbereich und die Sortiergrenze sind in der entsprechenden Produktnorm festgelegt. Die Wahl des Verfahrens für die Wirbelstromprüfung mit umfassender Spule auf der Außenseite nach EN 1971-1; oder Innensonde auf der Innenseite nach EN 1971-2; obliegt dem Hersteller, wenn keine anderen Vereinbarungen zwischen Hersteller und Lieferer getroffen wurden.
Cuivre et alliages de cuivre - Méthode de contrôle par courants de Foucault pour le mesurage des défauts des tubes ronds sans soudure en cuivre et alliages de cuivre - Partie 1: Essai avec une bobine encerclante sur la paroi externe
La présente partie de cette Norme européenne spécifie un mode opératoire relatif au contrôle par courants de
Foucault pour le mesurage des défauts présents sur la paroi externe des tubes ronds sans soudure en cuivre
et alliages de cuivre, au moyen d’une bobine encerclante.
NOTE La ou les méthode(s) de contrôle par courants de Foucault requise(s), ainsi que les gammes de dimensions
concernées et le niveau d'acceptation, sont spécifiés dans la norme de produit correspondante.
Le choix de la méthode de contrôle par courants de Foucault :
- avec une bobine encerclante sur la paroi externe selon l’EN 1971-1 ;
ou
- avec un capteur interne sur la paroi interne selon l’EN 1971-2 ;
est laissé à la discrétion du fabricant, sauf accord contraire entre le client et le fournisseur.
Baker in bakrove zlitine - Metoda preskušanja z vrtinčnimi tokovi za merjenje napak na nevarjenih okroglih ceveh iz bakra in bakrovih zlitin - 1. del: Preskus s preskusno tuljavo, ki obdaja zunanjo površino
Ta evropski standard določa postopek za metodo preskušanja z vrtinčnimi tokovi s preskusno tuljavo za merjenje napak na zunanji površini nevarjenih okroglih cevi iz bakra in bakrovih zlitin. Zahtevane metode preskušanja z vrtinčnimi tokovi ter razpon velikosti in meja sprejemljivosti so določeni v ustreznem standardu za izdelek. Metodo za preskušanje z vrtinčnimi tokovi:
– s preskusno tuljavo, ki obdaja zunanjo površino, v skladu s standardom EN 1971-1; ali
– z notranjo preskusno tuljavo ob notranji površini v skladu s standardom EN 1971-2;
izbere proizvajalec, če ne obstaja drugačen dogovor med kupcem in dobaviteljem.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1971-1:2012
01-februar-2012
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SIST EN 1971:1999
%DNHULQEDNURYH]OLWLQH0HWRGDSUHVNXãDQMD]YUWLQþQLPLWRNRYL]DPHUMHQMH
QDSDNQDQHYDUMHQLKRNURJOLKFHYHKL]EDNUDLQEDNURYLK]OLWLQGHO 3UHVNXVV
SUHVNXVQRWXOMDYRNLREGDMD]XQDQMRSRYUãLQR
Copper and copper alloys - Eddy current test for measuring defects on seamless round
copper and copper alloy tubes - Part 1: Test with an encircling test coil on the outer
surface
Kupfer und Kupferlegierungen - Wirbelstromprüfung an Rohren zur Messung von
Fehlern an nahtlos gezogenen runden Rohren aus Kupfer und Kupferlegierungen - Teil
1: Prüfung mit umfassender Spule auf der Außenseite
Cuivre et alliages de cuivre - Méthode de contrôle par courants de Foucault pour le
mesurage des défauts des tubes ronds sans soudure en cuivre et alliages de cuivre -
Partie 1: Essai avec une bobine encerclante sur la paroi externe
Ta slovenski standard je istoveten z: EN 1971-1:2011
ICS:
23.040.15 Cevi iz neželeznih kovin Non-ferrous metal pipes
77.150.30 Bakreni izdelki Copper products
SIST EN 1971-1:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 1971-1:2012
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SIST EN 1971-1:2012
EUROPEAN STANDARD
EN 1971-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2011
ICS 77.150.30 Supersedes EN 1971:1998
English Version
Copper and copper alloys - Eddy current test for measuring
defects on seamless round copper and copper alloy tubes - Part
1: Test with an encircling test coil on the outer surface
Cuivre et alliages de cuivre - Méthode de contrôle par Kupfer und Kupferlegierungen - Wirbelstromprüfung an
courants de Foucault pour le mesurage des défauts des Rohren zur Messung von Fehlern an nahtlos gezogenen
tubes ronds sans soudure en cuivre et alliages de cuivre - runden Rohren aus Kupfer und Kupferlegierungen - Teil 1:
Partie 1: Essai avec une bobine encerclante sur la paroi Prüfung mit umfassender Spule auf der Außenseite
externe
This European Standard was approved by CEN on 5 November 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1971-1:2011: E
worldwide for CEN national Members.
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SIST EN 1971-1:2012
EN 1971-1:2011 (E)
Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 General requirements .5
4.1 Personnel qualification .5
4.2 Condition of tube to be tested .5
4.3 Equipment .5
5 Reference standard tube .7
6 Acceptance criteria .7
6.1 Detection of local discontinuities by encircling coils systems .7
6.2 Detection of non-local discontinuities by encircling coils systems with lower detection
levels .7
6.3 Other test methods .8
7 Instrument adjustment .8
Figures
Figure 1 — Representation of eddy current control using encircling coils .6
Figure 2 — Representation of eddy current systems that involve a relative rotational motion
between the tube and the probe (helicoidal control of the tube) .6
2
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SIST EN 1971-1:2012
EN 1971-1:2011 (E)
Foreword
This document (EN 1971-1:2011) has been prepared by Technical Committee CEN/TC 133 “Copper and
copper alloys”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at
the latest by June 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1971:1998.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Within its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 3 "Copper
tubes (installation and industrial)" to revise the following document:
EN 1971:1998, Copper and copper alloys — Eddy current test for tubes
This is one of two parts of the standard for the eddy current test for measuring defects on seamless round
copper and copper alloy tubes. The other part is:
EN 1971-2, Copper and copper alloys — Eddy current test for measuring defects on seamless round copper
and copper alloy tubes — Part 2: Test with an internal probe on the inner surface
In comparison with the first edition of EN 1971:1998, the following significant technical changes were made:
split of and extension in two parts;
modification of Scope – introduction of the choice of test method with encircling coil or internal probe.
3
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SIST EN 1971-1:2012
EN 1971-1:2011 (E)
Introduction
The eddy current test described in this European Standard has the objective of detecting during production
potential leaks and serious defects in seamless round copper and copper alloy tubes.
The eddy current test is able to detect material inhomogeneities and their positions throughout the length of
tubes. The eddy current signals of material inhomogeneities are compared with reference signals of artificially
produced test defects. It is possible to identify these inhomogeneities on the inner and outer surfaces as well
as within the tube wall.
Since the distribution of eddy currents decreases as the distance from the test coil increases, the amplitude of
defect
...
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