1、 Reference number ISO 11484:2009(E) ISO 2009INTERNATIONAL STANDARD ISO 11484 Second edition 2009-02-15 Steel products Employers qualification system for non-destructive testing (NDT) personnel Produits en acier Systme de qualification, par lemployeur, du personnel pour essais non destructifs (END) I
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6、e address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rights reservedISO 11484:2009(E) ISO 2009 All righ
7、ts reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 General principles. 3 5 Levels of qualification 4 5.1 General. 4 5.2 NDT Level 1 . 4 5.3 NDT Level 2 . 4 6 Requirements and procedures for qualification by employer . 5 7 Qual
8、ification requirements 5 7.1 General. 5 7.2 Vision requirements . 5 7.3 Training 5 7.4 Industrial experience 6 8 Qualification examination 7 8.1 General. 7 8.2 Examination content. 7 8.3 Conduct of the examinations 9 8.4 Grading 9 8.5 Re-examination . 10 9 Qualification record 10 9.1 General. 10 9.2
9、 Content of the document . 10 9.3 Validity . 10 9.4 Renewal . 11 9.5 Requalification 11 10 Files 11 11 Introduction of new NDT methods, sectors or products 12 Annex A (informative) Weighting of practical examination . 14 Bibliography . 15 ISO 11484:2009(E) iv ISO 2009 All rights reservedForeword ISO
10、 (the International Organization for Standardization) is a worldwide 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 com
11、mittee has been established has the right to be represented 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 electrot
12、echnical standardization. International Standards are drafted 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 mem
13、ber bodies for voting. Publication as an International Standard 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 identify
14、ing any or all such patent rights. ISO 11484 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 19, Technical delivery conditions for steel tubes for pressure purposes. This second edition cancels and replaces the first edition (ISO 11484:1994), which has been technically revised.
15、 ISO 11484:2009(E) ISO 2009 All rights reserved v Introduction This International Standard concerns the qualification of personnel engaged in non-destructive testing (NDT) of steel products. It has been recognized that, within the steel industry worldwide, there is a predominance of semi- automatic/
16、automatic NDT equipment in use by NDT personnel to establish product integrity, as opposed to principally manual methods adopted in other industrial sectors. As a result, this International Standard permits employer qualification, subject to certain restrictions. In the preparation of this Internati
17、onal Standard, the requirements of ISO 9712 have been taken into account or adopted where they apply. However, it should be noted that the primary job-specific nature of the NDT tasks performed by NDT personnel on steel products is clearly outside the scope of ISO 9712 (see 3.13 of ISO 9712:2005). T
18、hus, in the context of this International Standard, the requirements of ISO 9712 should not be taken as basic or additional minimum requirements, but this does not preclude the right of any individual to apply for and obtain qualification/certification in conformance with ISO 9712, as may be appropr
19、iate in another sector. It is recognized that this International Standard may be applied to steel products and other specific product areas, as appropriate. INTERNATIONAL STANDARD ISO 11484:2009(E) ISO 2009 All rights reserved 1 Steel products Employers qualification system for non-destructive testi
20、ng (NDT) personnel 1 Scope 1.1 This International Standard describes an employers qualification system for non-destructive testing (NDT) personnel performing the inspection of the following steel products under the employers responsibility: tubes/pipes (seamless or welded); flat products, long produ
21、cts, rails, bars, sections, rod, wire. 1.2 This International Standard describes qualification requirements for Level 1 and Level 2 of NDT personnel competence to execute specific tasks in the NDT of steel products. The qualification is issued by the employer for a specific product and a specific me
22、thod. 1.3 This International Standard is intended to apply to NDT personnel performing predominantly automated inspection of steel products, using any of the following NDT methods: a) eddy current testing (ET); b) flux leakage testing (FT); c) leak testing (LT); d) liquid penetrant testing (PT); e)
23、magnetic particle testing (MT); f) radiographic testing (RT); g) ultrasonic testing (UT); h) visual inspection testing (VT). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For und
24、ated references, the latest edition of the referenced document (including any amendments) applies. ISO 9712, Non-destructive testing Qualification and certification of personnel ISO 11484:2009(E) 2 ISO 2009 All rights reserved3 Terms and definitions For the purposes of this document, the following t
25、erms and definitions apply. 3.1 qualification examination, administered by the certification body or the authorized qualifying body, which assesses the general, specific and practical knowledge and the skill of the candidate ISO 9712:2005 3.2 qualifying body body or department, independent from that
26、 of production, authorized by the employer to undertake the preparation and administration of examinations NOTE The qualifying body can also be an external organization operating under the mandate of the employer. 3.3 employer organization for which the candidate works on a regular basis ISO 9712:20
27、05 3.4 candidate individual seeking qualification 3.5 set-up mechanical and/or electronic adjustment of NDT equipment to establish the testing parameters and testing sensitivity required by the product specification 3.6 NDT method discipline applying a physical principle in non-destructive testing I
28、SO 9712:2005 EXAMPLE Ultrasonic testing. 3.7 NDT technique specific way of utilizing an NDT method ISO 9712:2005 EXAMPLE Immersion ultrasonic testing. 3.8 capability ability and/or skill to execute a specific NDT task 3.9 competence product knowledge and capability to carry out a specific NDT task I
29、SO 11484:2009(E) ISO 2009 All rights reserved 3 3.10 Level 3 individual person certified to Level 3, in accordance with ISO 9712 or equivalent, in the method and product for which he/she is authorized by the qualifying body to conduct, supervise and grade the qualification examination 3.11 general e
30、xamination written examination, at Level 1 or 2, concerned with the principles of an NDT method ISO 9712:2005 3.12 significant interruption absence that prevents the qualified individual from practicing the duties corresponding to the level in the relevant method for a continuous period in excess of
31、 1 year or a number of periods for a total time exceeding two years 3.13 specific examination written examination, at Level 1 or 2, concerned with testing techniques applied in a particular sector(s), including knowledge of the product(s) tested, and of codes, standards, specifications, procedures a
32、nd acceptance criteria ISO 9712:2005 4 General principles 4.1 Under the requirements of this International Standard, the employer has sole responsibility for providing a declaration of competence that a person in its employ performing NDT tasks has a prerequisite qualification and has successfully p
33、assed qualification examinations, conducted under the auspices of the employer, in one or more of the NDT methods covered by this International Standard, in respect of one of the two levels of competence (Level 1 or Level 2). As an alternative to the use of qualified Levels 1 and/or 2 personnel in t
34、he regular employ of the employer to carry out the required NDT operations, the employer is permitted to engage, on a contract basis, certified Level 1 or Level 2 personnel in accordance with ISO 9712 or equivalent. In addition, a certified Level 3 individual, either in the regular employ of, or eng
35、aged by, the employer, has the responsibility for administering Level 1 and Level 2 personnel qualification examinations. 4.2 The prerequisite qualification requirements in terms of visual acuity, basic education, training and experience shall be fulfilled by each candidate for eligibility for the q
36、ualification examinations. These prerequisite requirements shall be verified by the employer and endorsed on the qualification record. 4.3 The qualification examination for Level 1 and Level 2 personnel shall consist of three parts: a written general part, a written specific examination and a practi
37、cal examination. 4.4 The general, specific and practical examinations of the qualification examination shall be conducted, at the employers discretion, either by the employers qualifying body or by the employers authorized/approved external qualifying body. 4.5 The employers qualifying body shall be
38、 constituted by individuals independent of the production departments. These individuals form an independent examining body, including at least one certified Level 3 individual not necessarily in the employ of the employer but nominated by the employers qualifying body as an examiner for Level 1 and
39、 Level 2 personnel. Such a certified Level 3 individual shall be responsible for administering Level 1 and Level 2 personnel qualification examinations and its proper conduct. ISO 11484:2009(E) 4 ISO 2009 All rights reservedEmployer authorized/approved external qualifying bodies shall also meet thes
40、e basic requirements. 4.6 The qualification examination results shall be checked/verified by the qualifying body to ensure that the pass-mark requirements have been fulfilled and the employers qualifying body, on the qualifying bodys recommendation, shall issue a qualification record in respect of t
41、he individual, with regard to the NDT method and level of competence (Level 1 or Level 2). The issue of the qualification record provides the individual with the authorization to carry out specified NDT tasks within the employers production facilities (i.e. authorization to operate). This qualificat
42、ion record is thus only valid while the individual is in the employ of, or engaged by, the employer issuing the qualification record. 4.7 The activities for qualification up to the issue of a qualification record shall be specified in a written procedure. 5 Levels of qualification 5.1 General NDT pe
43、rsonnel qualified in accordance with this International Standard shall be classified in one of two levels of competence (Level 1 or Level 2) with respect to specific NDT tasks to be performed. Both levels of competence are defined in terms of NDT task content, degree of responsibility, etc. in accor
44、dance with 5.2 and 5.3. 5.2 NDT Level 1 An individual qualified to NDT Level 1 shall have demonstrated competence to carry out NDT according to NDT instruction and under the supervision of qualified Level 2 or certified Level 3 personnel. Within the scope of the competence defined on the qualificati
45、on, Level 1 personnel may be authorized by the employer to set up the NDT equipment, carry out the tests, record and classify the results of the tests in terms of written criteria, and report the results. He/she shall not be responsible for the choice of the test method or technique to be used, or f
46、or the assessment of test results. 5.3 NDT Level 2 An individual qualified to NDT Level 2 shall have demonstrated competence to perform NDT according to established procedures in the test method in which he/she is qualified. Within the scope of the competence defined for the qualification, Level 2 p
47、ersonnel may be authorized by the employer to select the NDT technique for the test method to be used, define the limitations of application of the testing method/technique(s), interpret NDT codes, standards, specifications and procedures into practical testing instructions adapted to the actual wor
48、king conditions, set up and verify equipment settings, ISO 11484:2009(E) ISO 2009 All rights reserved 5 perform and supervise the tests, interpret and evaluate results according to applicable codes, standards or specifications, prepare written NDT instructions, carry out and supervise all tasks at o
49、r below Level 2, provide guidance for personnel at or below Level 2, and organize and report the results of NDT tests. 6 Requirements and procedures for qualification by employer The qualifying body, through the authorized certified Level 3 individual, shall qualify NDT Level 1 and Level 2 candidates in accordance with Clauses 7 and 8. Once the candidate has been qualified, the employer shall issue the “qualification record”. NOTE The Level 3 individual need not be in the permanent em
