EN 1971-2:2019
(Main)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
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
This document specifies a procedure for the eddy current test with an internal probe for measuring defects on the inner surface of seamless round copper and copper alloy tubes.
This document applies particularly for finned tubes with high fins according to EN 12452.
NOTE 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 to prEN 1971-1
or
- with an internal probe on the inner surface according to prEN 1971-2
is at the discretion of the manufacturer if there are no other agreements between the purchaser and the supplier.
Especially for finned tubes according to EN 12452 with high fins, it is suggested to use eddy current test with internal probe as described in this document.
Kupfer und Kupferlegierungen - Wirbelstromprüfung an Rohren zur Messung von Fehlern an nahtlos gezogenen runden Rohren aus Kupfer und Kupferlegierungen - Teil 2: Prüfung mit Innensonde auf der Innenseite
Dieses Dokument legt ein Verfahren für die Wirbelstromprüfung mit Innensonde zur Messung von Fehlern auf der Innenoberfläche von nahtlosen Rundrohren aus Kupfer und Kupferlegierungen fest.
Dieses Dokument ist insbesondere für Rippenrohre mit hohen Rippen nach EN 12452 anwendbar.
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.
Besonders für Rippenrohre mit hohen Rippen nach EN 12452 wird die Anwendung der Wirbelstromprüfung mit Innensonde, wie in diesem Dokument beschrieben, empfohlen.
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 2 : Essai avec un capteur interne sur la paroi interne
Le présent document spécifie un mode opératoire relatif au contrôle par courants de Foucault pour le mesurage des défauts présents sur la paroi interne des tubes ronds sans soudure en cuivre et alliages de cuivre, au moyen d’un capteur interne.
Le présent document s'applique en particulier aux tubes à ailettes avec ailettes hautes selon l'EN 12452.
NOTE La ou les méthodes de contrôle par courants de Foucault requises, 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 le prEN 1971-1 ;
ou
- avec un capteur interne sur la paroi interne selon le prEN 1971-2 ;
est laissé à la discrétion du fabricant, sauf accord contraire entre le client et le fournisseur.
Il est suggéré, en particulier pour les tubes à ailettes selon l’EN 12452 avec ailettes hautes, d’utiliser le contrôle par courants de Foucault avec capteur interne selon la description du présent document.
Baker in bakrove zlitine - Metoda preskušanja z vrtinčnimi tokovi za merjenje napak na nevarjenih okroglih ceveh iz bakra in bakrovih zlitin - 2. del: Preskus z notranjo preskusno tuljavo ob notranji površini
Ta dokument določa postopek za metodo preskušanja z vrtinčnimi tokovi z notranjo preskusno tuljavo za merjenje napak ob notranji površini nevarjenih okroglih cevi iz bakra in bakrovih zlitin. Ta dokument se uporablja še posebej za narebričene cevi z visokimi rebri v skladu s standardom EN 12452.
OPOMBA: 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 prEN 1971-1; ali
– z notranjo tuljavo ob notranji površini v skladu s standardom prEN 1971-2;
izbere proizvajalec, če ne obstaja drugačen dogovor med kupcem in dobaviteljem.
Preskušanje z vrtinčnimi tokovi z notranjo preskusno tuljavo v skladu s tem dokumentom je predlagano zlasti za narebričene cevi v skladu s standardom EN 12452 z visokimi rebri.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2020
Nadomešča:
SIST EN 1971-2:2012
Baker in bakrove zlitine - Metoda preskušanja z vrtinčnimi tokovi za merjenje
napak na nevarjenih okroglih ceveh iz bakra in bakrovih zlitin - 2. del: Preskus z
notranjo preskusno tuljavo ob notranji površini
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
Kupfer und Kupferlegierungen - Wirbelstromprüfung an Rohren zur Messung von
Fehlern an nahtlos gezogenen runden Rohren aus Kupfer und Kupferlegierungen - Teil
2: Prüfung mit Innensonde auf der Innenseite
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 2 : Essai avec un capteur interne sur la paroi interne
Ta slovenski standard je istoveten z: EN 1971-2:2019
ICS:
23.040.15 Cevi iz neželeznih kovin Non-ferrous metal pipes
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 1971-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 23.040.15; 77.150.30 Supersedes EN 1971-2:2011
English Version
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
Cuivre et alliages de cuivre - Méthode de contrôle par Kupfer und Kupferlegierungen - Wirbelstromprüfung
courants de Foucault pour le mesurage des défauts des an Rohren zur Messung von Fehlern an nahtlos
tubes ronds sans soudure en cuivre et alliages de gezogenen runden Rohren aus Kupfer und
cuivre - Partie 2 : Essai avec un capteur interne sur la Kupferlegierungen - Teil 2: Prüfung mit Innensonde auf
paroi interne der Innenseite
This European Standard was approved by CEN on 4 September 2019.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1971-2:2019 E
worldwide for CEN national Members.
Contents Page
European 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 . 6
4.3 Equipment . 6
5 Reference standard tube . 6
6 Acceptance criteria . 7
6.1 Detection of local discontinuities by internal probes systems . 7
6.2 Detection of non-local discontinuities by internal probes systems with lower
detection levels . 7
6.3 Other test methods . 8
7 Instrument adjustment . 8
Bibliography . 9
European foreword
This document (EN 1971-2:2019) 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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1971-2:2011.
The following modifications were implemented in this new edition of EN 1971-2:
— updated normative references.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
The eddy current test with internal probe described in this document has the objective of detecting
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 signals also decreases with increasing distance from the test coil. Thus the eddy
current test with internal probe on the inner surface is less sensitive to defects on the outer surface.
The pu
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