written practice (sample)

WRITTEN PRACTICE

IN ACCORDANCE WITHISO 9712 : 2005 3RD EDITION

BS EN 473 : 2008SNT-TC-1A : 2006

BEN BUYSASNT LEVEL III MT/PT/RT/UTSAQCC LEVEL III MT/PTNON-DESTRUCTIVE ACADEMY OF SOUTH AFRICACAPE TOWN23 JOHN X MERRIMAN STREET, OAKDALE, BELVILLE, 7530TEL : 021 948 3088FAX : 021 948 3088CELL : 072 433 7691E-MAIL: [email protected]

NISH KANAYESAQCC LEVEL III MT/UT/PENDING PTSAQCC/SNT-TC-1A LEVEL II PT/MTNON-DESTRUCTIVE ACADEMY OF SOUTH AFRICADURBAN3 PASTOLL ROAD, SARNIA, 3610TEL : 031 7083433FAX : 086 500 7979CELL : 083 321 0618EMAIL : [email protected]

mailto:[email protected]

mailto:[email protected]

NON DESTRUCTIVE ACADEMY OF SOUTH AFRICA DOCUMENT TITLE : WRITTEN PRACTICE

COMPILED BY : N.KANAYE : SAQCC III ; SNT-TC-1A II DOCUMENT NUMBER : NASACC-075 REV 3

AUTHORIZED BY: B.BUYS : SAQCC III ; ASNT III 178523 DOCUMENT DATE : 01 JANUARY 2011

REVIEWED BY : B.BUYS : SAQCC III ; ASNT III 178523 NUMBER OF PAGES: 21 INCLUDING COVER

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INDEX PAGE

1 Scope 3

2 References 3

3 Terminology and Definitions 3

4 Symbols and Abbreviated Terms 6

5 Responsibilities 7

6 Levels of Qualification 9

7 Eligibility for Examination 10

8 Qualification Examination – Content and Grading 12

9 Qualification Examination – Conduct 15

10 Certification 16

11 Files 18

12 Categories 18

13 Code of Ethics 19

14 Specimen master reports 19

15 Grading: Level I and II practical examinations 20





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1 SCOPE

The objective of the Non-Destructive Academy of South Africa (NASA) is to establish procedures for thequalification and certification of personnel involved in Non-Destructive Testing (NDT).The Certification is applicable to proficiency and competence in one or more of the following methods:

Magnetic Particle Inspection Liquid Penetrant Inspection Ultrasonic Testing Radiographic Testing Ultrasonic Wall thickness Limited

The Certification can be acknowledged by NDT authorities, NDT companies, Inspection agencies, NDT Industryusers etc., to be in conformance with the requirements of the International Standard: ISO 9712 of 2005 3rd Edition;BS EN 473 of 2008; and SNT-TC-1A of 2006.

This Written practice is formulated to accommodate all the requirements of the above mentioned Standards,codes or recommended practices, with consideration taken to establish the most stringent of the combination.

The qualification certificate issued by NASA indicates that the holders were independently examined and foundcompetent to carry out the specific type of NDT discipline and category indicated on the certificate.It does not represent an authorization to operate or certification in accordance with a company’s written practiceand standard operating procedures, since this ultimately remains the responsibility of the employer.

Wherever the gender-specific word “His” or “He” appears in this NASA written instruction, the feminine form“Her” or “She” is equally applicable.

2 REFERENCES

ISO/IEC 17024 General requirements for bodies operating Certification of persons

ISO 9712: 2005 Non –destructive testing – Qualification and Certification of Personnel.

BS EN 473: 2008 Non –destructive testing – Qualification and Certification of NDT Personnel – GeneralPrinciples.

SNT-TC-1A: 2006 Recommended Practice No. SNT-TC-1A

3 TERMINOLOGY AND DEFINITIONS

3.1Authorized qualifying bodyBody independent of the employer, authorized by the NASACC to prepare and administer qualificationexaminations.

3.2CandidateIndividual seeking qualification and certification and who gains experience under the supervision of suitablyqualified personnel.





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3.3CertificateDocument issued by NASA under the provisions of this standard indicating that the named person hasdemonstrated the competence defined on the certificate.

3.4Certification bodyBody that administers procedures for certification according to the requirements of this written practice incompliance with ISO 9712 : 2005.

3.5CertificationProcedure, used by the certification body or company to confirm that the qualification requirements for a method,level and category have been fulfilled, leading to the issuing of a certificate.The issuing of a certificate does not authorize the holder to operate; this authority can only be given in writingby the Employer of the candidate.

3.6EmployerOrganization for which the individual works on a regular basis

3.7Examination centreCentre approved by NASA where qualification examinations will be carried out.

3.8Examination invigilatorPerson authorized by NASA to supervise examinations.

3.9Basic ExaminationWritten examination, at level III, which demonstrates the candidate’s knowledge of:The materials science and processes technologyThis qualification and certification systemThe basic principles of NDT methods as required for level II.

3.10General ExaminationA written level I and level II examination concerned with the principles of an NDT method

3.11Main method ExaminationWritten examination at level III, which demonstrates the candidates general and specific knowledge, and theability to write procedures for NDT method as applied in the industrial or product sector(s) for which certificationis sort.

3.12Practical ExaminationAssessment of practical skills, in which the candidate demonstrates familiarity with, and the ability to perform thetest.





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3.13Qualification ExaminationExamination administered by the authorized qualifying body, which assesses the general, specific and practical andthe skill of the candidate.

3.14Specific ExaminationWritten examination concerned with testing techniques applied in a particular category(s), including knowledge ofthe product(s) tested, and of codes, standards, specification and acceptance criteria.

3.15ExaminerA person certified to level III in the method and product or category for which he or she is to conduct, superviseand grade examinations and who is authorized to do so by NASA.

3.16Industrial ExperienceExperience, gained under qualified supervision, in the application of the NDT category(s) concerned, needed toacquire the skill and knowledge to fulfil the provisions of qualification and certification by the employer.

3.17Multiple-choice Examination questionWording of a question giving rise to four potential answers replies, only one of which is correct, the remainingthree being incorrect or incomplete.

3.18NDT instructionA written description of the precise steps to be followed in testing to an established standard, code, specificationor NDT procedure.

3.19NDT methodDiscipline applying a physical principle in non-destructive testing (e.g. ultrasonic testing)

3.20NDT procedureWritten description of all essential parameters and precautions to be observed when applying an NDT technique toa specific test, following an established standard, code or specification. An NDT procedure can involve theapplication of more than one NDT method or technique.

3.21NDT techniqueA specific way of utilizing an NDT method (e.g. post emulsified fluorescent liquid penetrant testing)

3.22NDT trainingA process of instruction in theory and practice in the NDT method in which certification is sought, which takes theform of training courses to a syllabus approved by NASA, but which does not include the use of the specimensused in qualification exams.





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3.23Operating authorizationWritten statement issued by the employer, based upon the scope of certification, authorizing the individual tocarry out defined tasks in NDT.

3.24QualificationDemonstration of physical attributes, knowledge, skill, training and experience required to properly perform NDTtasks.

3.25Significant interruptionAbsence or change of activity, which prevents the certified individual from practicing the duties corresponding tothe level in the method and the category(s) within the certified scope, for:A continuous period of One year or Two or more periods for a total time exceeding two years.NOTE: Legal holidays, periods of sickness or courses of less than thirty days are not taken into account whencalculating the interruption.

3.26SpecificationDocument stating requirements

3.27SpecimenA sample used in practical examinations. Specimens should be representative of products typically tested in theapplicable category(s) and can include more than one area or volume to be tested.

3.28Specimen master reportModel answer, indicating the optimum result for a practical examination given a defined set of conditions(equipment type, settings, technique, specimen, etc.), against which the candidates test report will be graded.

3.29Qualified SupervisionSupervision of candidates gaining experience by NDT personnel certified to the NASA standard or by non-certifiedpersonnel who, in the opinion of NASA, possess the knowledge, skill, training and experience required to properlyperform such supervision.

3.30SupervisionAct of directing the application of NDT performed by other NDT personnel, which includes the control of actionsinvolved in the preparation of the test, performance of the test and reporting of the results.

4 SYMBOLS AND ABBREVIATED TERMS

RT Radiographic testingUT Ultrasonic testingMT Magnetic particle testingPT Liquid penetrant testingNASA Non-Destructive Academy of South AfricaNDT Non-Destructive testingWT Ultrasonic wall thickness





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5 RESPONSIBILITIES

5.1 General

The certification system, which shall be controlled and administered by NASA (with the assistance of theauthorized qualifying body), includes all procedures necessary to demonstrate the qualification of an individual tocarry out tasks in a specific NDT method and product or category, which leads to certification of competence.

5.2 The Non-Destructive Academy of South Africa (NASA)

Shall initiate, promote maintain and administer the certification scheme accordingto ISO 9712 : 2005 , SNT-TC-1A and BS EN 473.

Shall issue all certificates. The issuing of a certificate does not authorize the holder to operate, this authoritycan only be given by the employer. The ultimate responsibility for authorizing an individual to perform NDTremains with the employer.

Shall be responsible for ensuring the security of all examination materials, specimens, master reports,question banks, examination papers etc.

Shall ensure that examination specimens are not in use for training purposes.

Shall be responsible for the definition of sectors.

Shall approve properly staffed and equipped examination centers which it shall monitor.

Shall conform to the requirements of ISO/IEC 17024.

Shall be supported by a technical committee composed of representatives of interested parties, for exampleNDT societies, committees, users, suppliers and government departments as appropriate. NASA shall beresponsible for setting and maintaining the technical standards of examination. Its members shall bequalified for the tasks by an appropriate combination of NDT certification and/or experience.

Shall authorize the current collection of examination questions related to the NDT disciplines concerned.

Shall authorize the specimens used for practical assessment ensuring that each specimen is uniquelyidentified and has master reports compiled by at least two independent tests and that is validated by anexaminer.

Shall ensure that practical specimens are sector specific.

Shall be responsible for maintaining an updated list of all certified individuals classified according to level,NDT method and sector.

Shall be responsible for maintaining a separate file for each certified individual containing application forms,examination documents, description of practical examination specimens, records and results includingevidence of visual acuity and continuous activity. Files shall be kept under suitable conditions of safety andconfidentiality for as long as certification remains valid.





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5.3 EXAMINATION CENTER

The Examination Center shall

Work under the control of the NASA.

Apply a documented quality management system approved by the NASA.

Have the resources needed to administer examinations, including the calibration and control of equipment.

Prepare and conduct examinations under the responsibility of an examiner authorised by NASA.

Have adequately qualified staff, premises and equipment to ensure satisfactory qualification examinationsfor the levels, methods and categories concerned.

Use only those documents and examination questionnaires established or approved by NASA.

Use only specimens prepared or approved by NASA for the practical examinations conducted at that center.When more than one examination center exists, each shall have specimens of comparable test difficultycontaining similar discontinuities maintain appropriate records to the requirements of NASA.

An examination centre may be situated at an employers premise. However, in this case the NASA shallrequire additional controls to preserve impartiality and examinations shall be conducted in the presence of,and under the control of, an authorised representative of NASA.

5.5 EMPLOYER

5.5.1 The employer shall confirm the validity of the personal information provided by the candidate to theNASA. The documentation shall include the declaration of the education, training and experience needed toestablish the eligibility of the candidate. If the candidate is unemployed or self-employed, the declaration ofeducation, training and experience shall be attested to by one or more independent parties.

5.5.2 Neither the employer nor his staff shall be directly involved in the qualification examination.

5.5.3 In respect of certified personnel under their control, the employer shall:

Be fully responsible for all that concerns the authorisation to operate. Be responsible for the results of NDT operations. Ensure that the annual visual acuity requirements are met. Verify continuity in the application of the NDT method without significant interruption.

5.5.4 A self-employed individual shall assume all responsibilities described for the employer.





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6 LEVELS OF QUALIFICATION

6.1 OPERATORS

An individual certified in accordance with this NASA Standard shall be classified in one or more of the followingthree levels.

6.2. LEVEL I

6.2.1. An individual certified to level I, shall have demonstrated competence to carry out NDT according to writtenNDT instructions, working under the supervision of a Level II or Level III operator(s).Within the scope of the competence defined on the NASA certificate level I operators shall havedemonstrated their competence to, and may be authorized by the employer to perform the following inaccordance with written NDT instructions:

Set up and calibrate NDT equipment Perform practical tests under workshop and field conditions Record and classify the results in terms of written criteria Safe handling of radio-isotopes and x-ray equipment, in compliance with statutory regulations Report the results

6.2.2. Level I operators shall not be responsible for the choice of test method or technique to be used, nor for theassessment of the test results.

6.3. LEVEL II

6.3.1. An individual certified to level II, shall have demonstrated competence to carry out NDT according toestablished procedures, codes, standards and specifications.Within the scope of the competence defined on the NASA certificate level II operators shall havedemonstrated their competence to, and may be authorized by the employer to perform the following inaccordance with written NDT procedures, codes, standards and specifications:

Select the NDT technique for the test method to be used Define the limitations of application of the testing method Translate NDT codes, standards, specifications and procedures into practical testing instructions adapted to

the actual working conditions Set up and verify equipment settings Perform and supervise tests Interpret and evaluate results according to applicable codes, standards or specifications Prepare written NDT instructions Carry out and supervise all tasks at or below level II Provide guidance for personnel at or below level II Organize and report the results of non-destructive tests.





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6.4. LEVEL III

6.4.1. An individual certified to level III, shall have demonstrated competence to perform and direct non-destructive testing operations for which he is certified.Within the scope of the competence defined on the NASA certificate level III operators shall havedemonstrated their competence to, and may be authorized by the employer to:

Assume full responsibility for a test facility or examination center and staff Establish and validate NDT instructions and procedures Interpret codes, standards, specifications and procedures Designate the particular test methods, procedures and NDT instructions to be used Carry out and supervise all NDT tasks at all levels Guide personnel at all levels

6.4.2. Level III personnel shall have demonstrated:

The competence to evaluate and interpret results in terms of the existing codes, standards andspecifications

Sufficient practical knowledge of applicable materials, fabrication, and product technology to select NDTmethods, establish NDT techniques, and assist in establishing acceptance criteria where none are otherwiseavailable

A general familiarity with other NDT methods.

6.4.3. Level III certified personnel may be authorized to carry out, manage and supervise NASA qualificationexaminations on behalf of NASA.

7 ELIGIBILITY FOR EXAMINATION

7.1 GeneralThe candidate shall fulfil the minimum requirements of vision and training prior to the qualificationexamination and shall fulfil the minimum requirements for industrial experience prior to certification.The candidate shall be fluent in the English language.

7.2 Vision requirements – All levelsThe candidate shall provide documented evidence of satisfactory vision in accordance with the followingrequirements:

a) near vision acuity shall permit reading, a minimum of Jaeger No.1 , Jaeger No.2 or Times Roman N4.5 orequivalent letters(Letter height of 1.5876mm) at not less than 300mm with one eye or both eyes, either corrected oruncorrected.

b) colour vision shall be sufficient that the candidate can distinguish contrast between the colours used in theNDT method concerned as specified by the employer.

Vision requirements shall be provided utilizing the NASA eye test Document number NASACC-078 Rev 1.

7.2.1 Subsequent to certification, the tests of visual acuity shall be carried out annually and be verified by theemployer or the responsible agency.





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7.3 TRAINING

7.3.1 The candidate for level I and level II shall provide documentary evidence, in a form acceptable to NASA,that training in the method and level for which certification is being sought has been satisfactorilycompleted, in accordance with NASA’s requirements.

7.3.2 Taking into account the scientific and technical potential of candidates for level III certification, preparationfor qualification may be done in different ways: by attending training courses, conferences or seminars,studying books, periodicals and other specialised printed or electronic materials. Regardless of the mannerof preparation, the level III applicant shall submit documentary evidence of appropriate training in a formacceptable to NASA.

7.3.3 The minimum duration of training undertaken by the candidate for certification shall be in accordance withTable 1. for the applicable method.

Table 1- Minimum training requirements

NDT METHOD LEVEL I hours LEVEL II hours(Inclusive of level I hours)

LEVEL III hours(Inclusive of level II hours)

MT 16 40 60

PT 16 40 60

UT 40 120 160

RT 40 120 160

Training hours are based upon candidates possessing basic mathematical skills and prior knowledge of materialsand processes. If this is not the case, additional training hours may be required by NASA.NOTE: training includes both practical and theory courses direct access to level II examinations requires the total hours shown for level I and II

7.4 INDUSTRIAL EXPERIENCE

7.4.1 Industrial experience may be acquired either prior to or following success in the qualification examination.Documentary evidence of experience shall be confirmed by the employer and submitted to the NASA. In theevent that the experience is sought following successful examination, the results shall remain valid for up tofive years.

The duration of experience for each NDT method shall be in accordance with Table 2.

Table 2 – Industrial Experience

NDT METHODEXPERIENCE IN MONTHS

LEVEL I LEVEL II (inclusive of level I) LEVEL III (inclusive of level II)

RT , UT 3 12 30

MT , PT 1 4 16

Industrial experience in months is based on a 40 hour week or the legal week of work. When an individual isworking in excess of 40 hours per week, he may be credited on the total hours, but he shall be required to produceevidence of this experience.





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8 QUALIFICATION EXAMINATION – CONTENT AND GRADING

8.1 GENERAL

General and Specific Levels I and II, all disciplines.

The qualification examination shall cover a given NDT method as applied in one or more category or one ormore product. NASA shall define and publish the maximum amount of time allowed for the candidate tocomplete each examination, as a guide the average time allowed should be no longer than 3 minutes permultiple-choice question. The average time allowable for questions requiring essay or narrative answersshall be determined by NASA.

8.2 Examination content – Level I and Level II general examination

8.2.1 The general examination shall include only questions selected in an unpredictable way from the authorisedNASA’s collection of general examination questions valid at the date of examination. The candidate shall berequired, as a minimum, to give answers to the number of multiple-choice questions in accordance withTable 3.

8.2.2 Where not otherwise addressed by nation regulations, there shall be an additional examination on radiationsafety for the radiographic test method.

8.2.3 Examinations on the radiographic test method may include either X- or gamma-radiation, or both,depending upon the procedure of the certification body.

Table 3 – Required minimum number of questions – levels I and II general examinations

NDT METHOD NUMBER OF QUESTIONS

RT , UT 40

MT , PT 40

8.3 Examination content – Level I and Level II specific examination

8.3.1 The specific examination shall include only questions selected in an unpredictable way from the authorisedNASA’s current collection of specific examination questions related to the categories concerned.The specific examination may include questions involving calculations, and questions on codes, standards,specifications and procedures. The candidate shall be required, as a minimum to give answers to 25 multiplechoice questions, but additional essay or narrative answer questions may also be included.

8.3.2 If the specific examination covers two or more categories, the minimum number of questions shall be atleast 30, evenly spread between the categories.

8.4 Examination content – Level I and Level II practical examination

8.4.1 The practical examination shall involve applying the NDT method to prescribed specimens, recording (andfor Level II candidates, interpreting) the resulting information to the degree required, and reporting theresults in the required NASA report format.





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8.4.2 NASA shall ensure that each specimen shall be uniquely identified and have a master report whichincludes all the equipment settings used to detect specified discontinuities contained within the specimen.

8.4.3 The master report shall be compiled based upon at least two independent tests, and shall be validated by anexaminer.

8.4.4 Specimens shall contain discontinuities characteristic of those that occur during manufacturing or in service.(Inherent, processing and in-service discontinuities)Discontinuities may be natural, artificial or implanted. For RT, the specimens need not containdiscontinuities since these will be exhibited in the radiographs for Level II interpretation.

8.4.5 The number of areas or volumes to be tested shall be adequate to the level and NDT method, and to thecategory concerned, and that those areas or volumes contain reportable discontinuities.

8.4.6 The Level I candidate shall follow the NDT instruction(s) provided by the examiner.

8.4.7 The Level II candidate shall select the applicable NDT technique and determine the operating conditionsrelated to a given code, standard, or specification.

8.4.8 The time allowed for the examination depends on the number of specimens and of their complexity.The maximum time allowable for each area or volume tested is 2 hours for level I 3 hours for level II

8.4.9 Level II candidates shall draft at least one NDT instruction suitable for Level I personnel for each testspecimen tested. The recommended maximum time allowed for this part of the examination is 2 hours.

8.4.10 The minimum number and type of level I and II specimens for practical examination for each category andmethod of NDT shall be in accordance with Annex C of ISO 9712 : 2005 3rd Edition.The NASA practical examination requirements are two specimens per category per method forMT and PT levels I or II. These requirements shall be listed on the NASA examination application form.(Document number NASACC-086 Rev 1)

8.5 Examination grading – Level I and Level II qualification examinations

8.5.1 An examiner shall be responsible for the grading of the examinations. The general, specific and practicalexaminations shall be graded separately.

8.5.2 In order to be successful in the written examination, the candidate shall achieve a minimum grade of 70% ineach of the examination parts.

8.5.3 In order to be successful in the practical examination, the candidate shall achieve a minimum grade of 70%in each specimen tested.

NOTE: A composite grade shall be determined by simple averaging of the results of the General, Specificand Practical examinations. Examinations administered for qualification in accordance to SNT-TC-1A, shallresult in a composite grade of 80%.





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8.6 Examination grading – Level III

The grading of the basic and main method examinations shall be done separately. To be eligible forcertification, a candidate shall pass both the basic and main method examinations.

8.7 Examination content – Level III basic examination

8.7.1 The basic examination shall include only questions selected in an unpredictable way from NASA’s authorisedcurrent collection of basic examination questions. The candidate shall be required as a minimum to give answersto a number of multiple-choice questions in accordance with Table 4.

Table 4 – Minimum required number of basic examination questions.

PART SUBJECT NUMBER OF QUESTIONS

A Technical knowledge in materials science , process technology, and types ofdiscontinuities. 25

B Knowledge of the certification body’s qualification and certification system based onthe ISO 9712:2005 Standard. This may be an open book examination 10

CGeneral knowledge of at least four NDT methods as required for level II and chosen bythe candidate from methods within the scope of ISO 9712:2005. These four methodsshall include at least one volumetric method (UT or RT).

15for each test method

total 60

8.7.2 The basic examination should be passed first and remains valid, providing that the first main methodexamination is passed within five years after passing the basic examination.

8.7.3 In order to be successful in this examination, the candidate shall achieve a minimum of 70% in each of thethree parts A, B and C as listed in Table 4.

8.8 EXAMINATION CONTENT – Level III Main Method Examination

8.8.1 The main method examination shall include only questions selected in an unpredictable way from theNASA’s authorised current collection of examination questions. The candidate shall be required as aminimum, to give answers to the number of multiple-choice questions shown in Table 5.

8.8.2 All candidates for the level III main method examination shall have successfully completed the practicalexamination for level II, graded in accordance with 8.5.3, in the appropriate sector and method, includingthe drafting of practical instructions for level I.

8.8.3 In order to successfully pass the main method examination, the candidate shall obtain a minimum grade of70% in each part D, E or F as listed in Table 5.

Table 5 continued on Page 15





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Table 5 – Minimum number of main method examination questions

PART SUBJECT NUMBER OF QUESTIONS

D Level III knowledge relating to the test method 30

EApplication of the NDT method in the category concerned, including the applicablecodes, Standards, specifications and procedures. This may be an open book examinationin relation to Codes, standards, specifications and procedures.

20

F

Drafting of one or more NDT procedures in the relevant category. The applicable codesStandards, specifications and procedures shall be available to the candidate.For a candidate who has already drafted a NDT procedure in a Level III examinationNASA may replace the drafting of a procedure with critical analysis of an existingNDT procedure covering the relevant method and category.

N/A

9 QUALIFICATION EXAMINATION – CONDUCT

9.1 GENERAL

9.1.1 All examinations shall be conducted in examination centers established, approved and monitored by theNASA.

9.1.2 Before commencement of the examination, the candidate shall present to the examiner or invigilator validproof of identification.

9.1.3 Any candidate who during the course of the examination does not abide by the examination rules or whoperpetrates, or is an accessory to fraudulent conduct shall be excluded from further examinations for aperiod of one year.

9.1.4 Examinations shall be approved by a NASA authorised examiner. The examinations shall be invigilatedand evaluated by an examiner, or by one or more NASA authorized invigilators placed under the examinersresponsibility.

9.1.5 An examiner shall be responsible for grading the examination in accordance with procedures established orapproved by the NASA. An examiner shall not be permitted to examine any candidate that he has trainedfor the examination, or who has the same employer as the examiner.

9.1.6 With the approval of the NASA , a candidate for a practical examination may use his own NDTequipment.

9.2 RE-EXAMINATION

9.2.1 A candidate failing for reasons of unethical behaviour shall wait at least one year before re-applying.

9.2.2 A candidate who fails to obtain the pass grade required for certification may be re-examined in any of theexamination parts twice, provided that the examination takes place not sooner than 30 days after aprevious examination and not later than five years after the original examination. NASA may use itsdiscretion in allowing an earlier entry in the event that further training acceptable to NASA is undertaken.





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9.2.2 In the event that a candidate has failed the second re-examination, the candidate shall take the examinationin accordance with the procedure for new candidates pending acceptance from NASA.

9.3 EXAMINATION EXEMPTIONS

9.9.1 A certified level I and level II individual changing from one category to another in the same NDT methodshall be required to take only the specific examination and the practical examination, for that method,concerning the new category.

9.9.2 A certified level III individual changing from one category to another in the same NDT method does not needto retake the basic examination nor retake the level 3 knowledge part of the main method examination.

10. CERTIFICATION

10.1 A candidate fulfilling all the conditions for Qualification shall be issued with a certificate by the Non-Destructive Academy of South Africa (NASA).

10.2 CERTIFICATES

Certificates shall include the following:

The full name and surname of the certified individual The date of certification The date upon which the certification expires The level of certification The name of the certification body The NDT method The applicable category of the method A unique personal certificate number The signature of the certified individual The signature on the certificate of a designated representative of NASA.

10.3 CERTIFICATION VALIDITY

10.3.1 The period of validity shall not exceed five years from the date of certification indicated on the certificate.

10.3.2 Certification shall be invalid

In any category other than that for which it was issued. At the discretion of the NASA after receiving and reviewing evidence of unethical behaviour. If the individual fails to meet the visual acuity requirements. If a significant interruption takes place in the individuals work in the method for which he is certified, until

such a time as the individual meets requirements for re-certification If the individual fails re-certification until such a time as the individual meets the requirements for re-

certification or initial certification.





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10.4 CERTIFICATION RENEWAL

10.4.1 Prior to the completion of the first period of validity, certification may be renewed by NASA for a newperiod of similar duration, provided that the certificate holder supplies documentary evidence of :

satisfactorily fulfilling the vision requirements during the preceding 12 months and continued satisfactory work activity, relevant to the certification without significant interruption.

10.5 RE-CERTIFICATION

10.5.1 General

Prior to completion of each second period of validity, or at least every ten years, the certified individual maybe re-certified by NASA for a similar period, provided the individual meets the criterion for renewal (10.4.1),and meets the following requirements, as applicable:

10.5.2 Levels I and II

The individual shall successfully complete a practical examination that assesses ongoing competence tocarry out work within the scope of the certificate, according to the following:

The individual shall obtain a grade of at least 70% for each specimen tested. A minimum of two specimens per category. If a pass is not achieved, two retests of the re-certification shall be allowed within 12 months of the first

attempt at the re-certification examination. In the event of failure in the two allowable re-tests, the individual shall not be re-certified and, in order to

regain certification for that level, category and method, the individual shall apply for new certification.If the individual holds valid certification in a different category of the same method, an exemption in thegeneral examination will be allowed.

10.5.3 Levels III

10.5.3.1The individual shall provide evidence of continued qualification confirmed by :

a) Satisfying the Level II requirements of 10.5.2 for a practical examination as well as the requirements of10.5.3.2 for a written examination, or

b) Meeting the requirements of 10.5.3.3 for a structured credit system.

The individual may decide between the examination or credit system for re-certification. If the credit systemis chosen and requires submission of employer’s documents or access to an employer’s premises, theindividual shall provide to NASA a written statement of approval from the employer.

10.5.3.2Successful completion of a written examination administered by NASA.

The individual shall successfully complete an examination that includes a minimum of 20 questions on theapplication of the test method in the categories concerned demonstrating an understanding of currentstandards, codes or specifications, and applied technology. If the individual fails to achieve a minimumgrade of 70% in the re-certification examination, two re-tests of the re-certification examination shall beallowed within 12months of the first attempt at re-certification.





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In the event that the individual fails the two allowable re-tests, the individual shall not be re-certified, and tore-gain certification for that category and method shall be required to achieve success in the appropriatemain method examination.

10.5.3.3Successful completion of the requirements of a structured-credit system in accordance with Annex Fof the ISO 9712 : 2005 3rd Edition document. An individual who applies for and does not meet therequirements of the credit system shall re-certify in accordance with 10.5.3.1 a).In the event of failure at thefirst attempt at re-certification by examination, only one re-test of the certification examination shall beallowed within 12 months of the date of the application for re-certification via the structured-credit system.

11. FILES

NASA shall be responsible for maintaining:

An updated list of all individuals certified, classified according to level, test method and category An individual file for each certificate holder and for each person whose certification has lapsed, or has been

cancelled or withdrawn. This file shall be kept for a period at least equal to the total period of validity plusthe renewal period and shall contain:

Application forms Examination documents, descriptions of specimens, records, results of tests, written procedures and / or

applicable instructions, and grade sheets Renewal documents, including evidence of visual acuity and continuous activity Reasons for any withdrawal of certification.

All files shall be kept under suitable conditions of safety and confidentiality.

12. CATEGORIES OR (SECTORS)

A category is a particular section of industry or technology where specialized NDT practices are used, requiringspecific product knowledge, skill, equipment and training.The Non-Destructive academy of South Africa (NASA), when creating categories shall standardise the categories inaccordance with Annex A of ISO 9712 : 2005 3rd Edition.

12.1 CATEGORIES

The following Categories have been authorized by NASA and shall be included as a part of the NASA examinationapplication form (Document number NASACC-086 Rev 1)

12.1.1 Magnetic particle inspection level I

MT 1.0 Multi-Sector (Welds, Castings and Forgings) MT 1.1 Welds MT 1.2 Castings MT 1.3 Forgings





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12.1.2 Magnetic particle inspection level II

MT 2.0 Multi-Sector MT 2.1 Welds MT 2.2 Castings MT 2.3 Forgings

12.1.3 Liquid penetrant inspection level I

PT 1.0 Multi-Sector PT 1.1 Welds PT 1.2 Castings PT 1.3 Forgings

12.1.4 Liquid penetrant inspection level II

PT 2.0 Multi-Sector PT 2.1 Welds PT 2.2 Castings PT 2.3 Forgings

13 CODE OF ETHICS

13.1 Members of NASA shall be required to acknowledge and sign a written code of ethics upon acceptanceto the committee. (Document number NASACC-079 Rev 1)

13.2 All successful candidates that have met all the requirements of the NASA Certification Scheme, shall beRequired, prior to receipt of the NASA Certificate to acknowledge and sign a written code of ethics.(Document number NASACC-076 Rev 1)

14 SPECIMEN MASTER REPORTS

Each specimen master report shall be compiled and validated by an examiner from at least two independentreports from tests carried out by appropriately certified Level II or Level III personnel with at least two yearsexperience in the application of the NDT method for which the specimen is to be used.

The independent test reports from which the master report is compiled shall be retained as records by NASA infiles in accordance with section 11. FILES

It is not necessary for the master report to be signed by the persons carrying out the independent tests, as thereports shall be retained, but the master report shall be signed and dated by the examiner or the authorisedsignatory of NASA.

The master report of the NASA practical examination shall contain at least the following information:

Name and logo of NASA. Specimen identification number hard stamped onto the specimen Type of product Type of material





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Dimensions NDT methods and techniques NDT equipment, calibration settings, operating conditions, serial numbers Discontinuities contained Mandatory reportable discontinuities that shall be recorded by the subsequent candidate Validation by examiner or authorised signatory of NASA.

15 GRADING: LEVEL I AND II PRACTICAL EXAMINATIONS

15.1 Grading of the NASA practical examinations for levels I and II NDT methods shall be in accordance withTable 6 as listed below.

15.2 A candidate failing to report a discontinuity specified on the specimen master report as ‘Mandatory forcandidates to report” when performing the test in the conditions specified in the master report is awardedzero marks for Part 3 as listed in Table 6 of the practical examination related to the specimen tested.

15.3 The Level II candidate is required to produce an NDT instruction, suitable for Level I personnel, for aspecimen selected by the examiner as listed in Part 4 of Table 6 of the practical examination. When thecandidate is testing a specimen for which no NDT instruction is required (exclusion of Part 4 of Table 6 ), thegrade is calculated as a percentage of the 85 remaining marks.

15.4 In order to be successful, the candidate shall achieve not less than 70% in the NDT instruction writing part,ie. 10,5 marks out of the 15 marks allowed.

Table 6 continued on Page 21.





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NASACC GUIDANCE ON PERCENTILE WEIGHTING OF PRACTICAL EXAMINATIONS

SUBJECT LEVEL I LEVEL II

PART 1 : Knowledge of NDT apparatus % %

a) System control and functional checks 10 5

b) Verification of settings 10 5

TOTAL 20 10

PART 2 : Application of NDT method % %

a) Preparation of the specimen (eg. Surface condition ), including visual examination 5 2

b) For level II, the selection of the NDT technique and determination of operating conditions n/a 7

c) Setting up of the NDT equipment 15 5

d) Performance of the test 10 5

e) Post test procedures ( eg. Demagnetization, cleaning, preservation, housekeeping ) 5 1

TOTAL 35 20

PART 3 : Detection of discontinuities and reporting % %

a) Detection of mandatory reportable discontinuities 20 15

b) Characteristics ( type , position , orientation , apparent dimensions , etc ) 15 15

c) Level II evaluation against code , standard , specification or procedure criteria n/a 15

d) Production of the test report 10 10

TOTAL 45 55

PART 4 : Writing of NDT Instruction ( Level II candidates only ) % %

a) Scope n/a 1

b) Personnel n/a 1

c) Equipment to be used, including settings n/a 3

d) Product ( Description or drawing , area of test , purpose of test ) n/a 2

e) Test conditions , including preparation for testing n/a 2

f) Detailed instructions for application of the test n/a 3

g) Recording and classifying the results of the test n/a 2

h) Reporting the results n/a 1

TOTAL n/a 15

OVERALL GRADE FOR PRACTICAL EXAM 100 100

END.

written practice (sample)

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