BS EN ISO 10893-4-2011 Non-destructive testing of steel tubes Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections《钢管的无损检测 表面缺陷.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 10893-4:2011Non-destructive testing of steeltubesPart 4: Liquid penetrant inspection ofseamless and welded steel tubes for thedetection of surface imperfections (ISO108

2、93-4:2011)BS EN ISO 10893-4:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO10893-4:2011. It supersedes BS EN 10246-11:2000 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/110, Steel Tubes, and Iron and S

3、teel Fittings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 59032 0ICS 23.040.10; 77.040

4、.20; 77.140.75Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE

5、EUROPISCHE NORM EN ISO 10893-4 April 2011 ICS 23.040.10; 77.040.20; 77.140.75 Supersedes EN 10246-11:2000English Version Non-destructive testing of steel tubes - Part 4: Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections (ISO 10893-4:2011) Essai

6、s non destructifs des tubes en acier - Partie 4: Contrle par ressuage des tubes en acier sans soudure ou souds pour la dtection des imperfections de surface (ISO 10893-4:2011) Zerstrungsfreie Prfung von Stahlrohren - Teil 4: Eindringprfung nahtloser und geschweiter Stahlrohre zum Nachweis von Oberfl

7、chenunvollkommenheiten (ISO 10893-4:2011) This European Standard was approved by CEN on 10 December 2010. 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 alteratio

8、n. 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

9、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, F

10、inland, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHE

11、S KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10893-4:2011: EBS EN ISO 10893-4:2011EN ISO 10893-4:2011 (E) 3 Foreword This document (EN ISO 10893-

12、4:2011) has been prepared by Technical Committee ISO/TC 17 “Steel“ in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication

13、 of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. 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

14、not be held responsible for identifying any or all such patent rights. This document supersedes EN 10246-11:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgar

15、ia, 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. Endorsement notice T

16、he text of ISO 10893-4:2011 has been approved by CEN as a EN ISO 10893-4:2011 without any modification. BS EN ISO 10893-4:2011ISO 10893-4:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 General requirements .2 5 Test met

17、hod .2 5.1 General .2 5.2 Detection of imperfections and their classification.3 5.3 Procedure.3 6 Evaluation of indications4 7 Acceptance 6 8 Test report7 BS EN ISO 10893-4:2011ISO 10893-4:2011(E) iv ISO 2011 All rights reservedForeword ISO (the International Organization for Standardization) is a w

18、orldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented

19、on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafte

20、d in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Stand

21、ard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10893-4 was prepared

22、by Technical Committee ISO/TC 17, Steel, Subcommittee SC 19, Technical delivery conditions for steel tubes for pressure purposes. This first edition cancels and replaces ISO 12095:1994, which has been technically revised. ISO 10893 consists of the following parts, under the general title Non-destruc

23、tive testing of steel tubes: Part 1: Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness Part 2: Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for the dete

24、ction of imperfections Part 3: Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections Part 4: Liquid penetrant inspection of seamless and welded steel tubes for th

25、e detection of surface imperfections Part 5: Magnetic particle inspection of seamless and welded ferromagnetic steel tubes for the detection of surface imperfections Part 6: Radiographic testing of the weld seam of welded steel tubes for the detection of imperfections Part 7: Digital radiographic te

26、sting of the weld seam of welded steel tubes for the detection of imperfections Part 8: Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections Part 9: Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for t

27、he manufacture of welded steel tubes Part 10: Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections BS EN ISO 10893-4:2011ISO 10893-4:2011(E) ISO 2011 All rights reserved v Part

28、11: Automated ultrasonic testing of the weld seam of welded steel tubes for the detection of longitudinal and/or transverse imperfections Part 12: Automated full peripheral ultrasonic thickness testing of seamless and welded (except submerged arc-welded) steel tubes BS EN ISO 10893-4:2011BS EN ISO 1

29、0893-4:2011INTERNATIONAL STANDARD ISO 10893-4:2011(E) ISO 2011 All rights reserved 1Non-destructive testing of steel tubes Part 4: Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections 1 Scope This part of ISO 10893 specifies requirements applicabl

30、e to liquid penetrant testing of seamless and welded tubes for the detection of surface imperfections. It is applicable to all or any part of the tube surface as required by the relevant product standards. It can also be applicable to the testing of hollow sections. 2 Normative references The follow

31、ing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3059, Non-destructive testing Penetrant testing and mag

32、netic particle testing Viewing conditions ISO 3452-1, Non-destructive testing Penetrant testing Part 1: General principles ISO 3452-2, Non-destructive testing Penetrant testing Part 2: Testing of penetrant materials ISO 9712, Non destructive testing Qualification and certification of personnel ISO 1

33、1484, Steel products Employers qualification system for non-destructive testing (NDT) personnel 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3452-1 and ISO 11484 and the following apply. 3.1 tube hollow long product open at both ends, of any cross

34、-sectional shape 3.2 seamless tube tube made by piercing a solid product to obtain a tube hollow, which is further processed, either hot or cold, into its final dimensions BS EN ISO 10893-4:2011ISO 10893-4:2011(E) 2 ISO 2011 All rights reserved3.3 welded tube tube made by forming a hollow profile fr

35、om a flat product and welding adjacent edges together, and which, after welding, can be further processed, either hot or cold, into its final dimensions 3.4 manufacturer organization that manufactures products in accordance with the relevant standard(s) and declares the compliance of the delivered p

36、roducts with all applicable provisions of the relevant standard(s) 3.5 agreement contractual arrangement between the manufacturer and purchaser at the time of enquiry and order 4 General requirements 4.1 Unless otherwise specified by the product standard or agreed on by the purchaser and manufacture

37、r, this liquid penetrant inspection shall be carried out on tubes after completion of all the primary production process operations (rolling, heat treating, cold and hot working, sizing, primary straightening, etc.). 4.2 The surface of the tube being tested shall be sufficiently clean and free of oi

38、l, grease, sand, scale or any other foreign matter which can potentially interfere with the correct interpretation of the indications obtained from liquid penetrant testing. The type of indications, as well as the minimum dimension of the surface imperfections detected, depends on the specific tube

39、manufacturing process and the surface finish. 4.3 This inspection shall be carried out by trained operators, qualified in accordance with ISO 9712, ISO 11484 or equivalent, and supervised by competent personnel nominated by the manufacturer. In the case of third-party inspection, this shall be agree

40、d on between the purchaser and manufacturer. The operating authorization issued by the employer shall be according to a written procedure. NDT operations shall be authorized by a level 3 NDT individual approved by the employer. NOTE The definition of levels 1, 2 and 3 can be found in appropriate Int

41、ernational Standards, e.g. ISO 9712 and ISO 11484. 5 Test method 5.1 General 5.1.1 A liquid penetrant is applied to the surface being examined and allowed to enter the surface imperfections. All excess penetrant is then removed; the surface of the part is dried and a developer is applied. The develo

42、per functions both as a blotter to absorb penetrant that has been trapped in imperfections and as a contrasting background to enhance the visibility of penetrant indications. The dyestuffs in penetrants are either colour-contrast (visible under white light) or fluorescent (visible under ultraviolet

43、light). For both penetrant techniques, the following three types of penetrant systems can be used: a) water washable; b) post emulsifying; c) solvent removable. Where the term “penetrant materials” is used in this part of ISO 10893, it is intended to include all penetrants, solvents or cleaning agen

44、ts, developers, etc., used in the testing process. BS EN ISO 10893-4:2011ISO 10893-4:2011(E) ISO 2011 All rights reserved 35.1.2 For each tube or each part of the tube under test, either a colour-contrast penetrant technique or a fluorescent penetrant technique, both techniques with one of the three

45、 types of penetrant systems, shall be used. The general principles and the methods of verification of liquid penetrant testing as described in ISO 3059, ISO 3452-1 and ISO 3452-2 shall be applied (see 5.3). 5.2 Detection of imperfections and their classification The liquid penetrant method is an eff

46、ective means of detecting imperfections which are open to the surface (called surface imperfections in this part of ISO 10893). Typical surface imperfections detectable by this method are cracks, seams, laps, cold shuts, laminations and porosity. The liquid penetrant method does not make it possible

47、 to determine the nature, shape and, more generally, the dimensions of the surface imperfections revealed. The dimensions of the penetrant indication do not directly represent the actual dimensions of the surface imperfection causing this indication. That is why the classification of liquid penetran

48、t indications shall be the following: a) linear indications indications where the length of the indication is equal to or more than three times the width of the indication; b) rounded indications indications which are circular or elliptical in shape, where the length of the indication is less than t

49、hree times the width of the indication; c) accumulated indications indications which are linear or rounded and are aligned or clustered with a separation of not more than the length of the smallest indication and consisting of at least three indications; d) non-relevant indications indications which may result from localized surface irregularities to a particular tube-making process, for example machining marks, scratches and sizing/straightening marks. The minimum dimension of indications that shall b

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