ISO 9712, International Standard for Nondestructive Testing Personnel Certification

ISO 9712, International Standard for Nondestructive Testing Personnel Certification

EN ISO 9712 is a compulsory EU personal certification system for NDT operators. Having EN ISO 9712 certificated NDT operators in factory are one of the pre-conditions to acquire some EU compulsory certifications such as CE marking on pressure equipment, construction products (PED/TPED/CPD) etc or rail welding system EN15085 certification. This standard evaluates and documents the competence of personnel whose tasks require knowledge of non-destructive tests. It was published in 1992 as an international standard that would be mutually recognized by participating nations. This document is similar to SNT-TC-1A in that personnel qualifications are based on education, training, experience and qualification examinations.

ISO 9712 uses the Level I, II and III certification designations. A key issue is that employer-based certification is not acceptable. NDT personnel certification must be obtained from third party “Recognized Certification Body”. Certification bodies operating according to the EN ISO 9712 scheme must be accredited according to EN ISO/IEC 17024. The certification body shall provide a certificate to all certified persons. The certification body shall maintain sole ownership of the certificates. Normally the certification bodies are also examination centres, which perform the examinations. It may be relevant to establish further examination centres controlled by the certification bodies to accommodate particular industrial sectors and applications as well as regional requirements.

The candidate shall fulfil the following minimum requirements before to access to the certification exam:

1.      Training: For all levels, the candidate shall satisfactorily complete a course of theoretical and practical training. Minim duration of training is specified by the standard

2.      provide a proof of good eyesight

3.      fulfil the required practical industrial experience in non-destructive testing

The certification examination for level II consists of written general and specific parts, and a specific practical examination covering a given NDT method applied to specimen representative of products in one or more industrial sectors. The general and specific written examinations are comprised mainly of multi-choice answer questions. The practical examination is of sufficient duration, complexity and scope adequately to verify the candidate’s ability to apply the NDT method to real test situations. The qualification examination for level II consists of written examination covering an overall knowledge of materials, standard and NDT methods plus written general and specific parts dedicate to the method under examination.

After the exam has been successfully passed and the full industry experience can be proved, the certificate itself can be applied for. The certification stays valid for five years and has to be renewed. While this only includes a new application form, recertification after ten years consists of a further examination.

The last edition of ISO 9712:2012 was introduced in January 2013 replacing EN 473, as well as the former version of ISO 9712 9712:2005. Despite many similarities, the new version of ISO 9712:2012 contains numerous alterations:

·      For example, the updated standard consists of new testing methods, such as infrared thermography or testing with strain gauges.

·      The required practical experience in non-destructive testing before certification has also been introduced with the new ISO 9712.

·      Furthermore, written electronic tests can be taken online now

The main benefits of this certification are:

·      provides qualified market operators with the ability to operate professionally according to internationally recognised rules and techniques

·      contributes to raising the quality standards of the entire process chain (constructors, diagnostic instruments, operators, designers, testers, contractors, users)

·      gives objective evidence of the correct management of personnel and production processes

·      provides objective technical credentials of the staff’s mandatory capacity under the EU directives

·      provides a legal guardian to protect the responsibility of the manufacturer or service company who performs the controls.

EN ISO 9712 is a compulsory EU personal certification system for NDT operators. Having EN ISO 9712 certificated NDT operators in factory are one of the pre-conditions to acquire some EU compulsory certifications such as CE marking on pressure equipment, construction products (PED/TPED/CPD) etc or rail welding system EN15085 certification. This standard evaluates and documents the competence of personnel whose tasks require knowledge of non-destructive tests. It was published in 1992 as an international standard that would be mutually recognized by participating nations. This document is similar to SNT-TC-1A in that personnel qualifications are based on education, training, experience and qualification examinations.

ISO 9712 uses the Level I, II and III certification designations. A key issue is that employer-based certification is not acceptable. NDT personnel certification must be obtained from third party “Recognized Certification Body”. Certification bodies operating according to the EN ISO 9712 scheme must be accredited according to EN ISO/IEC 17024. The certification body shall provide a certificate to all certified persons. The certification body shall maintain sole ownership of the certificates. Normally the certification bodies are also examination centres, which perform the examinations. It may be relevant to establish further examination centres controlled by the certification bodies to accommodate particular industrial sectors and applications as well as regional requirements.

The candidate shall fulfil the following minimum requirements before to access to the certification exam:

1.      Training: For all levels, the candidate shall satisfactorily complete a course of theoretical and practical training. Minim duration of training is specified by the standard

2.      provide a proof of good eyesight

3.      fulfil the required practical industrial experience in non-destructive testing

The certification examination for level II consists of written general and specific parts, and a specific practical examination covering a given NDT method applied to specimen representative of products in one or more industrial sectors. The general and specific written examinations are comprised mainly of multi-choice answer questions. The practical examination is of sufficient duration, complexity and scope adequately to verify the candidate’s ability to apply the NDT method to real test situations. The qualification examination for level II consists of written examination covering an overall knowledge of materials, standard and NDT methods plus written general and specific parts dedicate to the method under examination.

After the exam has been successfully passed and the full industry experience can be proved, the certificate itself can be applied for. The certification stays valid for five years and has to be renewed. While this only includes a new application form, recertification after ten years consists of a further examination.

The last edition of ISO 9712:2012 was introduced in January 2013 replacing EN 473, as well as the former version of ISO 9712 9712:2005. Despite many similarities, the new version of ISO 9712:2012 contains numerous alterations:

·      For example, the updated standard consists of new testing methods, such as infrared thermography or testing with strain gauges.

·      The required practical experience in non-destructive testing before certification has also been introduced with the new ISO 9712.

·      Furthermore, written electronic tests can be taken online now

The main benefits of this certification are:

·      provides qualified market operators with the ability to operate professionally according to internationally recognised rules and techniques

·      contributes to raising the quality standards of the entire process chain (constructors, diagnostic instruments, operators, designers, testers, contractors, users)

·      gives objective evidence of the correct management of personnel and production processes

·      provides objective technical credentials of the staff’s mandatory capacity under the EU directives

·      provides a legal guardian to protect the responsibility of the manufacturer or service company who performs the controls.

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