AS ISO 20807 pdf download
AS ISO 20807 pdf download.Non-destructive testing — Qualifcation of personnel for limited application of non-destructive testing
1 Scope
1.1 This International Standard establishes a system for the qualification of personnel who perform NDT applications of a limited, repetitive or automated nature, such as: a) eddy current and electromagnetic sorting of materials; b) eddy current and electromagnetic testing of tubular products during manufacture; c) normal beam ultrasonic testing of plate materials during manufacture; d) ultrasonic thickness testing. These examples are not intended to restrict the range of qualifications which could be covered by this International Standard. 1.2 This standard therefore does not provide for magnetic particle testing (MT) or liquid penetrant testing (PT). NOTE The arrangements described in ISO 9712 provide sufficient flexibility to allow limited applications of these methods. 1.3 When the need for qualified non-destructive testing (NDT) personnel is defined in product standards, regulations, codes or specifications, and the nature of the testing to be carried out is limited in scope or automated such that the qualification requirements specified in ISO 9712 are considered inappropriate or excessive, it may be satisfied by qualification in accordance with this International Standard. 1.4 This International Standard is not intended to supplant the qualification and certification requirements detailed in sector-specific standards, such as ISO 11484:1994 Steel tubes for pressure purposes — Qualification and certification of non-destructive testing (NDT) personnel. 1.5 The requirements detailed herein apply only to NDT personnel qualified for specific applications, and no direct attempt should be made to equate this to the NDT levels defined in ISO 9712. However, it is recommended that qualified personnel defined in this International Standard be supervised by an appropriately certified NDT level 2 or 3 person as defined in ISO 9712:1999.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.3.1 candidate individual seeking qualification and who gains experience under the supervision of suitably qualified personnel 3.2 certificate document issued by the certification body under the provisions of this International Standard indicating that the named person has demonstrated the competence(s) defined on the certificate 3.3 certification body body that administers procedures for qualification to the requirements of this International Standard 3.4 employer organization for which the candidate works on a regular basis 3.5 examination centre centre approved by the certification body, where qualification examinations are carried out Note 1 to entry: An examination centre may be situated at an employer’s premises 3.6 examination invigilator person authorized by the certification body to supervise examinations 3.7 examination, practical examination of practical skills, in which the candidate demonstrates familiarity with, and the ability to operate the test equipment3.8 examination question, multiple choice wording of a question giving rise to four potential replies, only one of which is correct, the remaining three being incorrect or incomplete 3.9 examination question, short answer written question that requires the candidate to respond using one or more sentences, or to provide a mathematical solution showing all calculations Note 1 to entry: A short answer examination question may provide some guidance on the matters to be included in the candidate’s response. 3.10 examination, written examination concerned with the principles of an NDT method and with the candidate’s knowledge of procedures, codes, standards and specifications 3.11 examiner person certified at level 3 in accordance with the provisions of ISO 9712 for the method and sector he is to examine, and authorized by the certification body to conduct, supervise and grade NDT qualification examinations 3.12 experience period during which the candidate carried out, under supervision, the NDT application for which qualification is sought3.13 NDT application specific non-destructive test applied to a defined product or range of products Note 1 to entry: An NDT application will normally be restricted to the use of only one NDT method but may involve the use of more than one NDT technique. 3.14 NDT instruction written description of the precise steps to be followed in testing to an established standard, code, specification or NDT procedure 3.15 NDT method discipline applying a physical principle in non-destructive testing (e.g., ultrasonic testing) 3.16 NDT operator individual qualified in accordance with this International Standard
