SIST EN 473:2008
Non destructive testing - Qualification and certification of NDT personnel - General principles
Non destructive testing - Qualification and certification of NDT personnel - General principles
This European Standard establishes a system for the qualification and certification of personnel who perform industrial non destructive testing (NDT).
This European Standard establishes principles for the qualification and certification of personnel who perform industrial non-destructive testing (NDT). The term 'industrial' implies the exclusion of applications in the field of medicine. The system described in this European Standard can also apply to other NDT methods, or to new techniques within an established NDT method, provided a comprehensive scheme of certification exists and the method or technique is covered by European, international or national standards, or the new NDT method or technique has been demonstrated as effective through a formal qualification carried out in accordance with CEN/TR 14748. When certification of NDT personnel is defined in product standards, regulations, codes or specifications, it is recommended to certify the personnel in accordance with this European Standard. The certification covers proficiency in one or more of the following methods: a) acoustic emission testing; b) eddy current testing; c) leak testing (hydraulic pressure tests excluded); d) magnetic particle testing; e) penetrant testing; f) radiographic testing; g) ultrasonic testing; h) visual testing (direct unaided visual tests and visual tests carried out during the application of another NDT method are excluded).
Zerstörungsfreie Prüfung - Qualifizierung und Zertifizierung von Personal der zerstörungsfreien Prüfung - Allgemeine Grundlagen
Diese Europäische Norm legt Grundsätze für die Qualifizierung und Zertifizierung von Personal fest, das industrielle zerstörungsfreie Prüfungen (ZfP) durchführt. Der Begriff „industriell“ bedeutet den Ausschluss der Anwendung in der Medizin.
Das in dieser Europäischen Norm beschriebene System darf auch für andere ZfP-Verfahren, oder neue Techniken innerhalb bestehender ZfP-Verfahren angewendet werden, vorausgesetzt, es besteht ein anerkanntes Zertifizierungsprogramm und das Verfahren oder die Technik wird in Europäischen, internationalen oder nationalen Normen behandelt, oder das neue ZfP-Verfahren oder die Technik hat sich durch formale Qualifizierung nach CEN/TR 14748 als effektiv erwiesen.
ANMERKUNG 1 Immer wenn geschlechtsspezifische Wörter wie „seine“, „ihre“, „er“ oder „sie“ in dieser Norm erscheinen, gilt dies auch für das andere Geschlecht.
Ist die Zertifizierung von ZfP-Personal in Produktnormen, Gesetzen, Regelwerken oder Spezifikationen festgelegt, wird empfohlen, Personal in Übereinstimmung mit dieser Europäischen Norm zu zertifizieren.
ANMERKUNG 2 Die Verfahrensweise für die „Zulassung“ von ZfP-Personal ist nicht in der Richtlinie 97/23/EG [4] festgelegt und es besteht die Übereinkunft, dass Leitlinien erforderlich sind, um eine gleich bleibende Herangehensweise bei der Anwendung dieser Richtlinie sowie der Umsetzung der Druck-Leitlinie 6/13 [5] der Arbeitsgruppe der Zugelassenen Drittstellenorganisationen (RTPO) sicherzustellen. Daher wurde ein praktisches Regelwerk als CEN/TR 15589 [6] erarbeitet.
Die Zertifizierung schließt die Vertrautheit mit der Anwendung eines oder mehrerer der folgenden Verfahren ein:
a) Schallemissionsprüfung;
b) Wirbelstromprüfung;
c) Dichtheitsprüfung (ausgenommen Wasserdruckprüfungen);
d) Magnetpulverprüfung;
e) Eindringprüfung;
f) Durchstrahlungsprüfung;
g) Ultraschallprüfung;
Essais non destructifs - Qualification et certification du personnel END - Principes généraux
La présente Norme européenne établit des principes pour la qualification et la certification du personnel chargé
d'effectuer des essais non destructifs (END) industriels. Le terme « industriel » implique l'exclusion d'applications
dans le domaine médical.
Le système décrit dans la présente Norme européenne peut également s’appliquer à d’autres méthodes d’essais
non destructifs, ou à de nouvelles techniques employées dans une méthode d’essai non destructif établie, à
condition qu’un programme de certification complet existe et que la méthode ou technique soit couverte par des
normes européennes, internationales ou nationales, ou que l’efficacité de la nouvelle méthode ou technique
d’essais non destructifs ait été démontrée par une qualification formelle réalisée conformément au CEN/TR 14748.
NOTE 1 Partout où sont utilisés dans la présente norme les mots spécifiques à un genre, tels que « son », « sa », « il » ou
« elle », l’autre genre s’applique également.
Lorsque du personnel END certifié est prescrit dans les normes de produit, les règlements, les codes ou les
spécifications, il est recommandé que le personnel soit certifié conformément à la présente Norme européenne.
NOTE 2 La méthodologie « d’approbation » du personnel END n’est pas spécifiée dans la Directive 97/23/CE [4] et il a été
convenu qu’un guide serait nécessaire pour garantir une approche cohérente dans l’application de la Directive et la mise en
oeuvre de l’orientation 6/13 [5] du Groupe de Travail « Pression » par des Entités Tierces Parties Reconnues (ETPR). Un Code
de bonne pratique a donc été élaboré en tant que Rapport Technique CEN/TR 15589 [3].
La certification couvre la compétence dans l'une ou plusieurs des méthodes suivantes :
a) émission acoustique ;
b) courants de Foucault ;
c) étanchéité (les essais de pression hydrauliques étant exclus) ;
d) magnétoscopie ;
e) ressuage ;
f) radiographie ;
g) ultrasons ;
h) examen visuel (à l'exclusion des examens visuels directs
Neporušitveno preskušanje - Kvalificiranje in certificiranje osebja za neporušitvene preiskave - Splošna načela
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Zerstörungsfreie Prüfung - Qualifizierung und Zertifizierung von Personal der zerstörungsfreien Prüfung - Allgemeine GrundlagenEssais non destructifs - Qualification et certification du personnel END - Principes générauxNon destructive testing - Qualification and certification of NDT personnel - General principles19.100Neporušitveno preskušanjeNon-destructive testing03.100.30Vodenje ljudiManagement of human resourcesICS:Ta slovenski standard je istoveten z:EN 473:2008SIST EN 473:2008en,fr,de01-oktober-2008SIST EN 473:2008SLOVENSKI
STANDARDSIST EN 473:2001/A1:2006SIST EN 473:20011DGRPHãþD
SIST EN 473:2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 473June 2008ICS 19.100Supersedes EN 473:2000
English VersionNon-destructive testing - Qualification and certification of NDTpersonnel - General principlesEssais non destructifs - Qualification et certification dupersonnel END - Principes générauxZerstörungsfreie Prüfung - Qualifizierung und Zertifizierungvon Personal der zerstörungsfreien Prüfung - AllgemeineGrundlagenThis European Standard was approved by CEN on 8 May 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 473:2008: ESIST EN 473:2008
EN 473:2008 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 Methods and symbols.8 5 General principles.8 5.1 General.8 5.2 Duties and responsibilities.9 5.3 Levels of qualification.11 6 Eligibility.12 6.1 General.12 6.2 Training.12 6.3 Industrial NDT experience.13 6.4 Vision requirements - all levels.15 7 Qualification examination.15 7.1 General.15 7.2 Examination content and grading for level 1 and level 2.15 7.3 Examination content and grading for level 3.18 7.4 Conduct of examinations.19 7.5 Re-examination.20 7.6 Examination exemptions.20 8 Certification.20 8.1 Administration.20 8.2 Certificates and/or wallet cards.20 8.3 Validity.21 9 Renewal.21 10 Recertification.22 10.1 General.22 10.2 Level 1 and 2.22 10.3 Level 3.22 10.4 Recertification for more than 12 months after expiry of the period of validity.22 11 Files.23 12 Transition period.23 Annex A (normative)
Sectors.24 Annex B (normative)
Minimum number and type of test specimens for the levels 1 and 2 practical examination.25 Annex C (normative)
Structured credit system for level 3 recertification.27 Annex D (normative)
Grading Practical examination.29 D.1 Grading of level 1 and 2 practical examination - guidance on the percentile weighting.29 D.2 Grading of level 3 practical examination - guidance on percentile weighting.31 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.32 Bibliography.33
SIST EN 473:2008
EN 473:2008 (E) 3 Foreword This document (EN 473:2008) has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing”, the secretariat of which is held by AFNOR. 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 December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. 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 will supersede EN 473:2000. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this standard.
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, 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.
SIST EN 473:2008
EN 473:2008 (E) 4 1 Scope This European Standard establishes principles for the qualification and certification of personnel who perform industrial non-destructive testing (NDT). The term ‘industrial’ implies the exclusion of applications in the field of medicine. The system described in this European Standard can also apply to other NDT methods, or to new techniques within an established NDT method, provided a comprehensive scheme of certification exists and the method or technique is covered by European, international or national standards, or the new NDT method or technique has been demonstrated as effective through a formal qualification carried out in accordance with CEN/TR 14748. NOTE 1 Wherever gender specific words such as "his", "her", "he" or "she" appear in this standard, the other gender is also applicable. When certification of NDT personnel is defined in product standards, regulations, codes or specifications, it is recommended to certify the personnel in accordance with this European Standard. NOTE 2 The methodology for “Approval” of NDT personnel is not specified in Directive 97/23/EC [4] and it was agreed that guidance was required in order to ensure a consistent approach to the application of the Directive and the implementation of Working Group Pressure guideline 6/13 [5] by Recognised Third Party Organisations (RTPO). As a result a Code of Practice was developed as Technical Report CEN/TR 15589 [3]. The certification covers proficiency in one or more of the following methods: a) acoustic emission testing; b) eddy current testing; c) leak testing (hydraulic pressure tests excluded); d) magnetic particle testing; e) penetrant testing; f) radiographic testing; g) ultrasonic testing; h) visual testing (direct unaided visual tests and visual tests carried out during the application of another NDT method are excluded).
2 Normative references The following 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. CEN/TR 14748:2004, Non-destructive testing – Methodology for qualification of non-destructive tests
CEN/TS 15053:2005, Non-destructive testing – Recommendations for discontinuities-types in test specimens for examination EN ISO/IEC 17024:2003, Conformity assessment – General requirements for bodies operating certification of persons (ISO/IEC 17024:2003)
SIST EN 473:2008
EN 473:2008 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 authorized qualifying body body, independent of the employer, authorized by the certification body to prepare and administer qualification examinations
3.2 basic examination written examination, at level 3, which demonstrates the candidate’s knowledge of the materials science and process technology and types of discontinuities, the qualification and certification system according to this European Standard, and the basic principles of NDT methods as required for level 2
NOTE For an explanation of the three levels of qualification, see Subclause 5.3.
3.3 candidate individual seeking qualification and certification who gains experience under the supervision of suitably qualified personnel
3.4 certificate document issued by the certification body under the provisions of this European Standard, indicating that the named person has demonstrated the competence(s) defined on the certificate
3.5 certification procedure used by the certification body to confirm that the qualification requirements for a method, level and sector have been fulfilled, leading to the issuing of a certificate
3.6 certification body body that administers procedures for certification according to the requirements of this European Standard and which fulfils the requirements of EN ISO/IEC 17024
3.7 employer organization for which the candidate works on a regular basis; an employer can also be a candidate at the same time
3.8 examination centre centre approved by the certification body where qualification examinations will be carried out
3.9 examiner person certified to level 3 in the method and product or industrial sector for which he is authorized by the certification body to conduct, supervise and grade the qualification examination
3.10 general examination written examination, at level 1 or 2, concerned with the principles of an NDT method
SIST EN 473:2008
EN 473:2008 (E) 6 3.11 industrial experience experience, acceptable to the certification body, gained under qualified supervision, in the application of the NDT method in the sector concerned, needed to acquire the skill and knowledge to fulfil the provisions of qualification
3.12 invigilator person authorized by the certification body to supervise examinations
3.13 job-specific training training, provided by the employer (or his agent) to the certificate holder in those aspects of non-destructive testing specific to the employer’s products, NDT equipment, NDT procedures, and applicable codes, standards, specifications and procedures, leading to the award of operating authorizations
3.14 main-method examination written examination, at level 3, which demonstrates the candidate’s general and specific knowledge, and the ability to write NDT procedures for the NDT method as applied in the industrial or product sector(s) for which certification is sought
3.15 multiple-choice examination question wording of a question giving rise to four potential replies, only one of which is correct, the remaining three being incorrect or incomplete
3.16 NDT instruction written description of the precise steps to be followed in testing to an established standard, code, specification or NDT procedure
3.17 NDT method discipline applying a physical principle in non-destructive testing
EXAMPLE Ultrasonic testing.
3.18 NDT procedure written description of all essential parameters and precautions to be applied when non-destructively testing products in accordance with standard(s), code(s) or specification(s)
3.19 NDT technique specific way of utilizing an NDT method
EXAMPLE Immersion ultrasonic testing.
3.20 NDT training process of instruction in theory and practice in the NDT method in which certification is sought, which takes the form of training courses to a syllabus approved by the certification body
3.21 operating authorization written statement issued by the employer, based upon the scope of certification, authorizing the individual to carry out defined tasks
NOTE Such authorization can be dependent on the provision of job-specific training.
3.22 practical examination assessment of practical skills, in which the candidate demonstrates familiarity with, and the ability to perform, SIST EN 473:2008
EN 473:2008 (E) 7 the test
3.23 qualification demonstration of physical attributes, knowledge, skill, training and experience required to properly perform NDT tasks
3.24 qualification examination 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
3.25 qualified supervision supervision of candidates gaining experience by NDT personnel certified to this European Standard or by non-certified personnel who, in the opinion of the certification body, possess the knowledge, skill, training and experience required to properly perform such supervision
3.26 sector particular section of industry or technology where specialized NDT practices are used, requiring specific product-related knowledge, skill, equipment or training
NOTE A sector can be interpreted to mean a product (welded products, castings) or an industry (aerospace, in-service testing). See Annex A.
3.27 significant interruption absence or change of activity which prevents the certified individual from practising the duties corresponding to the level in the method and the sector(s) within the certified scope, for either a continuous period in excess of one year or two or more periods for a total time exceeding two years
NOTE Legal holidays or periods of sickness or courses of less than thirty days are not taken into account when calculating the interruption.
3.28 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 and acceptance criteria
3.29 specification document stating requirements 3.30 specimen sample used in practical examinations, possibly including radiographs and data sets, which is representative of products typically tested in the applicable sector
NOTE It can include more than one area or volume to be tested.
3.31 specimen master report model answer, indicating the optimum result for a practical examination given a defined set of conditions (equipment type, settings, technique, specimen, etc.) against which the candidate’s test report will be graded SIST EN 473:2008
EN 473:2008 (E) 8
3.32 supervision act of directing the application of NDT performed by other NDT personnel, which includes the control of actions involved in the preparation of the test, performance of the test and reporting of the results
3.33 validation act of demonstrating that a verified procedure will work in practice and fulfil its intended function, normally achieved by actual witnessing, demonstration, field or laboratory tests or selected trials 4 Methods and symbols
For the purposes of this European Standard, the following symbols are used to identify the NDT methods.
Table 1 – Methods and symbols NDT Method Symbol Acoustic emission testing AT Eddy current testing ET Leak testing LT Magnetic particle testing MT Penetrant testing PT Radiographic testing RT Ultrasonic testing UT Visual testing VT 5 General principles 5.1 General The certification system, which shall be controlled and administered by a certification body (with the assistance, where necessary, of authorized qualifying bodies), includes all procedures necessary to demonstrate the qualification of an individual to carry out tasks in a specific NDT method and product or industrial sector, leading to certification of competence. 5.1.1 The certification body shall fulfil the requirements of EN ISO/IEC 17024. 5.1.2 Where established, the authorised qualifying body shall: a) work under the control of the certification body; b) have the resources needed to administer examinations at examination centres, including the calibration and control of equipment; c) prepare and supervise examinations under the responsibility of an examiner authorised by the certification body; d) be independent of any single predominant interest; e) apply a documented quality management system approved by the certification body; f) have the resources and expertise necessary to establish examination centres; g) ensure that test specimens are not in use for training purposes. SIST EN 473:2008
EN 473:2008 (E) 9 When an authorised qualifying body covers a sector, the authorised qualifying body shall be comprised of more than one company active in the sector concerned. If there are no authorised qualifying bodies, the certification body shall fulfil the requirements of the qualifying body.
5.1.3 The examination centre shall: a) work under the control of the certification body or authorised qualifying body; b) apply a documented quality procedure approved by the certification body; c) have the resources needed to administer examinations, including the calibration and control of equipment; d) prepare and conduct examinations under responsibility of an examiner authorised by the certification body; e) ensure that test specimens are not in use for training purposes. 5.2 Duties and responsibilities 5.2.1 Certification body The certification body: a) shall initiate, promote, maintain and administer the certification scheme according to EN ISO/IEC 17024 and this European Standard; b) may delegate, under its direct responsibility, the detailed administration of qualification to authorised qualifying bodies, to which it should issue specifications and/or quality procedures covering facilities, personnel, calibration and control of NDT equipment, examination materials, specimens, conduct of examinations, examination grading, records, etc; c) shall approve properly staffed and equipped examination centres which it shall monitor on a periodic basis; d) shall establish an appropriate system for the maintenance of records, which shall be retained for at least one certification cycle (10 years); e) shall be responsible for the issue of all certificates; f) shall be responsible for the definition of sectors (see Annex A); g) shall ensure that test specimens are not in use for training purposes; h) shall monitor, in accordance with a documented procedure, all delegated functions; i) shall require all candidates and certificate holders to give a signed undertaking to abide by a code of ethics which it shall develop for the purpose and publish. 5.2.2 Authorised qualifying bodies 5.2.2.1 Where established, authorised qualifying bodies shall: a) work under the control of and, where applicable, apply the specifications issued by the certification body; b) work within a documented quality management system approved by the certification body; c) have the resources needed to prepare, supervise and administer examinations under the responsibility of an examiner authorised by the certification body at examination centres established for the purpose; d) maintain appropriate qualification and examination records according to the requirements of the certification body.
SIST EN 473:2008
EN 473:2008 (E) 10 5.2.2.2 If there are no authorised qualifying bodies, the certification body shall fulfil the requirements of the qualifying body. 5.2.3 Examination centre 5.2.3.1 An examination centre can be situated at an employer’s premises. In this case, examinations shall be conducted only in the presence of, and under the control of, an authorised representative of the certification body. 5.2.3.2 When more than one examination centre exists, each shall have test specimens of comparable test difficulty containing similar discontinuities. Under no circumstances shall test specimens be used for training purposes. 5.2.3.3 Examination centres shall apply a documented quality procedure approved by the certification body, and: a) work under the control of the certification body or authorised qualifying body, and have adequate qualified staff, premises and equipment to ensure satisfactory qualification examinations for the levels, methods, and sectors concerned; b) prepare and conduct examinations under responsibility of an examiner authorised by the certification body, using only those examination questionnaires and specimens established or approved by the certification body for that purpose; c) have the resources needed to administer examinations, including the calibration and control of equipment;
d) maintain appropriate qualification and examination records according to the requirements of the certification body. 5.2.4 Employer 5.2.4.1 The employer shall introduce the candidate to the certification body or the authorised qualifying body and document the validity of the personal information provided, including the declaration of education, training and experience required for the eligibility of the candidate, but shall not be directly involved in the qualification examination. 5.2.4.2 With regard to certificated persons, the employer shall be responsible for: a) providing job-specific training, if necessary; b) issuing the written operating authorisation; c) verifying annually the NDT employee’s visual acuity in accordance with 6.4, and d) verifying continuity in the application of the NDT method without significant interruption. It is recommended that these responsibilities be described in a documented procedure.
5.2.4.3 A self employed individual shall assume all responsibilities ascribed to the employer. 5.2.5 Candidate Candidates, either employed or unemployed shall: a) provide documentary evidence of satisfactory completion of a course of training approved by the Certification Body; b) provide verifiable documentary evidence that the required experience has been gained under qualified supervision; c) provide documentary evidence of vision satisfying the requirements of 6.4; d) undertake to abide by a code of ethics published by the certification body for candidates and certificates holders. SIST EN 473:2008
EN 473:2008 (E) 11 5.2.6 Certificate holders Certificate holders shall: a) abide by a code of ethics published by the certification body; b) submit to an annual test of visual acuity, and submit the results of tests to the employer; c) notify the certification body and the employer in the event that the conditions for validity of certification are not fulfilled. 5.3 Levels of qualification An individual certificated in accordance with this European Standard shall be classified in one or more of the three following levels, depending upon his respective qualification. 5.3.1 Level 1 5.3.1.1 An individual certificated to level 1 has demonstrated competence to carry out NDT according to written instructions and under the supervision of level 2 or level 3 personnel. Within the scope of the competence defined on the certificate, level 1 personnel may be authorised by the employer to: a) set up NDT equipment; b) perform the tests; c) record and classify the results of the tests in terms of written criteria; d) report the results.
5.3.1.2 Level 1 certificated personnel shall not be responsible for the choice of test method or technique to be used, nor for the assessment of test results.
5.3.2 Level 2 An individual certificated to level 2 has demonstrated competence to perform non-destructive testing according to established or recognised procedures. Within the scope of the competence defined on the certificate, level 2 personnel may be authorised by the employer to: a) select the NDT technique for the testing method to be used; b) define the limitations of application of the testing method; c) translate NDT standards and specifications into NDT instructions; d) set up and verify equipment settings; e) perform and supervise tests; f) interpret and evaluate results according to applicable standards, codes or specifications; g) prepare written NDT instructions; h) carry out and supervise all tasks at or below level 2; i) provide guidance for personnel at or below level 2, and j) organise and report the results of non-destructive tests. SIST EN 473:2008
EN 473:2008 (E) 12 5.3.3 Level 3 5.3.3.1 An individual certificated to level 3 has demonstrated competence to perform and direct non-destructive testing operations for which he is certificated. Within the scope of the competence defined on certificate, level 3, personnel may be authorised to: a) assume full responsibility for a test facility or examination centre and staff; b) establish and validate NDT instructions and procedures; c) interpret standards, codes, specifications and procedures; d) designate the particular test methods, procedures and NDT instructions to be used; e) carry out and supervise all level 1 and level 2 duties, and
f) provide guidance for NDT personnel a
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