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1、asme无损检测人员资格鉴定和认证Written Practice for Qualification and Certification of NDE Personnel1. Scope1.1 This written practice provides guideline for the qualification and certification of NDE personnel who are engaged in ASME Code products manufacturing.1.2 This practice shall be in compliance with the re
2、quirements of SNT-TC-1A (current Code accepted edition).2. Definitions2.1 Terms included in this practice are defined as follows:1) Qualification: Demonstrated skill, demonstrated knowledge, documented training and documented experience required for personnel to properly perform the duties of a spec
3、ific job.2) Certification:Written testimony of qualification.3) Training: The organized program developed to impart the knowledge and skills necessary for qualification.4) Experience: Work activities accomplished in a specific NDE method under the direction of qualified supervision including the per
4、formance of the NDE method and corresponding working scope but not including time spent in organized training programs.5) Certificate: Certified document.3. Nondestructive Testing MethodsQualification and certification of NDE personnel in accordance with this practice is applicable to the following
5、methods:1) Radiographic Testing (RT)2) Ultrasonic Testing (UT)3) Liquid Penetration Testing (PT)4) Magnetic Particle Testing (MT)4. Levels of Qualification4.1 There are three (3) basic Levels of qualification for NDE individuals in accordance with SNT-TC- 1 A(current Code accepted edition).While in
6、the process of being qualified and certified, an individual shall be considered a trainee. A trainee shall work with a certified individual and shall not independently conduct, interpret, evaluate, or report the results of any NDE.4.3 The three basic Levels of qualification are as follows:(1) NDE Le
7、vel I: An NDE Level I individual shall be qualified to properly perform specific calibrations and evaluations for acceptanceor rejection determinations according to written instructions and to record results. The NDE Level I individual shall follow the necessary in structi on or supervisi on of a ce
8、rtified NDE Level n or level Jl| in dividual.(2) NDE Level II: An NDE Level II individual shall be qualified to set up and calibrate equipment and to interpret and evaluate results with respect to applicable codes, standards, and specifications. The NDE Level II shall be thoroughly familiar with the
9、scope and limitations of the methods for which qualified and shall exercise assigned responsibility for on-the-job training and guidance of trainees and NDE Level I personnel. The NDE Level II shall be able to prepare the instructions, organize NDEexamination and report the results of NDE.(3) NDE Le
10、vel III: An NDE Level III individual shall be capable of establishing techniques and procedures, interpreting Code, standards, specifications and procedures and designating the particular NDE methods, techniques and procedures to be used. The NDE Level III individual shall be responsible for the NDE
11、 operations for which qualified and assigned and be capable of interpreting and evaluating results in terms of existing Code, standards and specifications. The NDE Level III shall have sufficient practical background in applicable materials, fabrication, and product tech no logy to establish tech ni
12、q ues and to assist in establish ing accepts nee criteria in case of other criteria available. The NDE Level III shall have gen eral familiarity with other appropriate NDE methods as dem on strated by the ASNT Level III Basic exam in ati on or other means. The NDE Level III, in the methods in which
13、certified, shall be capable of training and examining NDE Level I and II personnel for certification in those methods.5. Education, Training and Experience Requirements for Initial Qualification5.1 Personnel applying for certification in NDE shall have sufficient education, training and experience t
14、o ensure to understand the principle and operation methods of the certification for which they are appl ying.5.2 Prior to the establishment of this written practice those whose training term and experience are equivale nt to that of level, I, II, III pers onnel and are of verified may be con sidered
15、 of satisfying the criteria of Par.5.3 .In con siderati on for certificatio n, a can didate shall satisfy one of the followi ng criteria for the applicable NDE Level:5.3.1 NDE Level I and IITable 1 lists the training and experience factors required for initial qualification of Level I and Level II i
16、n dividuals.Required Educati on, Experie nee and In itial Training time (hours) for NDE Level I and IIExam in ati on Method GradeRTMTUTPTIIIIIIIIIIIICompleti on with a pass ing grade of at least 2years of engin eeri ngof scie nee study in auni versity,college or tech ni cal school293584304044High sc
17、hool graduati on or equivale nt3940128404048Work Time Experie nee (mon ths/hours)3/2109/6301/703/2103/2109/6301/702/140Notes:(1) . For Level II certificati on, the experie nee shall c on sist of time at Level I or equivale nt. If a pers on is being qualified directly to Level II with no time at Leve
18、l I, the required experience shall consist of the sum of the times required for Level I and Level II and the required training shall con sist of the sum of the hours required for Level I and Level II.(2) . I nitial experie nee may be gained simulta neously in two or more methods if the can didate sp
19、ends a minimum of 25% of his work time on each method for which certification is sought, and the rema in der of the work time claimed as experie nee is spe nt in NDE-related activities defined in the ABC S written practice.5.3.2 NDE Level III(1) Have graduated from a minimum four-year college or uni
20、versity curriculum with a degreein engineering or science, plus one year1 s experience in NDE in an assignment comparable tothat of an NDE Level II in the applicable test methods, or;(2) Have completed with passing grades at least two years of engineering or science study at a university, college, o
21、r technical school, plus two year s experience in NDE in an assignmeleast comparable to that of NDE Level II in the applicable NDE methods, or;Have four year1 s experience in NDE in an assignment at least comparable to that of an NDE Level II in the applicable NDE methods.6. Trai ning Programs6.1 Pe
22、rsonnel applying for initial certification shall receive sufficient organized training to become thoroughly familiar with the principles and practices of the specified NDE method related to the level of certification desired and applicable to the processes to be used and the products to be exam in e
23、d.6.2 The trai ning program shall i nclude sufficie nt exam in ati ons to assure that the n ecessary in formatio n has bee n comprehe nded.6.3 ASNT recommended training course outlines for NDE Level I and II personnel are used as ref ere nee materials for this writte n practice.7. Exami natio ns7.1
24、Adm ini strati on and Grad ingNDE Level III or his desig nated represe ntative shall be resp on sible for the adm ini strati on and grad ing of exam in ati ons.7.2 Visio n Exam in ati ons1) The exam in ati on shall assure n atural or corrected n ear-dista nee acuity in at least one eye such that the
25、 applies nt is capable of read ing a minimum of Jaeger 2, or equivale nt type and size letter at a dista nee of not less tha n 305 mm on a sta ndard Jaeger test chart.2) The exam in atio n shall dem on strate the capability of disti nguish ing and differe ntiat ing con trast among colors or shades o
26、f gray used in the method.3) The visi on exam in ati ons shall be con ducted annu ally.4) Exam in ati on results shall be kept on file duri ng the period of certificatio n.For Level I and II pers onn el, a composite grade shall be determ ined by simpleaveragi ng of the results of the gen eral, speci
27、fic and practical exam in ati ons described below.7.3.1 Ge neral Exami nation (Writte n)1) The gen oral exam in ati ons shall address the basic prin ciples of the applicable method.2) In prepari ng the exam in ati ons, the Chief Exam iner (Level III) or his desig nated represe ntative shall select o
28、r devise appropriate questi ons accord ing to the applicable method and the degree required by this written practice.The minimum number of questions are as follows:Test methodNumber of Level I Questi onsNumber of Level II Questi onsRT4040MT3030UT4040PT30307.3.2 Specific Exam in ati ons (Writte n)1)
29、The specific exam in ati on shall address the equipme nt, operati ng procedures and NDE tech niq ues that the in dividual may encoun ter duri ng specific assig nments to the degree required by this writte n practice.2) The specific exam in atio n shall also cover the specificati ons or codes and acc
30、epts nee criteria used in NDE procedures.The minimum number of questions are as follows:Test methodNumber of Level I Questi onsNumber of Level II Questi onsRT2020MT2015UT2020PT20157.3.3 Practical Examination1) Proficie ncy shall be dem on strated in perform ing (for level n select ing and perform in
31、g) the applicable NDE on one or more samples approved by the NDE Level III and in evaluating the results to the degree of responsibility as described in this written practice.2) Prior to examination, the Chief Examiner (Level III) or his designated representative shall prepare a checklist of at leas
32、t ten (10) different checkpoints requiring an understanding of NDE parameters and the companyprocedural requirements shall be included in this practical examination.3) The candidate shall demonstrate skillful operation of the necessary NDE equipment, record, and analyze the resultant information to
33、the degree required.4) At least one selected specimen shall be tested and the results of the NDE shall be analyzed by the candidate.5) The description of the specimen, the NDE procedure, including check points, and the results of the examination shall be documented.7.4For Level III personnel, the co
34、mposite grade shall be determined by simple averaging of the results of the basic, method and specific examinations described below.7.4.1 Basic Examination (required only once when more than one method examination is taken).The minimum number of questionsis as follows:1) Fifteen (15) questions relat
35、ing to understanding the SNT-TC-1A document.2) Twenty (20) questions relative to applicable materials, fabrication, and product technology. Twenty (20) questions which are similar to or selected from other NDE Level II questions.7.4.2 Method Examination (for each method)1) Thirty (30) questions rela
36、ting to fundamentals and principles, which are similar to or selected from published ASNT Level III questions for each method, and2) Fifteen (15) questions relating to application and establishment of techniques and procedures which are similar to or selected from published ASNT Level III questions
37、for each method, and Twenty (20) questions relating to capability for interpreting Code, standards, and technical specifications for the method.7.4.3Specific Examination (for each method)1) Twenty (20) questions relating to technical specifications, equipments, techniques, and procedures applicable
38、to the ABC fs products and methods employed and to the administration of the ABC S written practice.2) The QAD Manager may delete the specific examination described in Par 7.4.3 1) if the candidate has a valid ASNT NDE Level III or ACCP Professional Level III certificate in the method and if documen
39、ted evidence of experience exists including the preparation of NDE procedures according to code, standards, or specifications and the evaluation of test results.7.4.4 A valid endorsement on an ASNT NDE Level III or ACCP Professional Level III certificate fulfills the examination criteria described i
40、n par 7.4.1 and 7.4.2 for each applicable NDE method.1.5 All Level 1,11 and 川 writte n exam in ati ons shall be closed-book except that n ecessary data, such as graphs, tables, specifications, procedures, Code, etc. may be provided with or in the examination. All questions used for Level I and II ex
41、aminations shall be approved by the responsible Level III.1.6 Grading1)The NDE Level III shall be responsible for the examination and actual grading of NDE LevelI , II and other level III .For all Levels, the examinations administered for qualification shall result in a passing composite grade of at
42、 least 80%, with no individual examination having a passing grade less than 70%.1.7 Re-examinationThose failing to attain the required grades must wait at least 30 days or show the evidence of recei ving suitable additi onal trai ning as determ ined by the NDE chief Exam iner (NDE Level Jl|) before
43、reexamination.8 . Certification8.1 The QAD Manager shall be responsible for certify the certificate of all Levels of NDE personnel.8.2 The examination records and evaluation reference shall be archived by QAD.8.3 The qualification records of the certified individuals shall include the following:(1)
44、Name of certified individual.(2) Level of certification and NDE method.(3) Educational background and experience of certified individuals.(4) Statement indicating satisfactory completion of training in accordance with this written practice.(5) Results of the vision examination described in paragraph
45、 7.2 for the current certification period.(6) Current examination copy(ies) or evidence of successful completion of the examinations.(7) Other suitable evidence of satisfactory qualifications when such qualifications are used in lieu of the specific examinations described in paragraph 7.4.3 2).(8) C
46、omposite grade(s) or suitable evidence of grades.(9) Dates of certification or re-certification and the dates of assignments to NDE.8.4 Re-certification8.4.1 All Levels of NDE personnel shall be re-certified periodically in accordance with one of the following criteria:(1) Evidence of continuing sat
47、isfactory performance.(2) Re-examination in those portions of the examinations in paragraph 7 deemed necessary by the NDE Level III.8.4.2 NDE personnel may be re-examined at any time by the QAD Manager, NDE Level III or Authorized Inspector and have their certifications extended or revoked.8.4.3 All
48、 Levels of NDE personnel must be re-examined and re-certified if they do not work in the method in which they are certified for 6 months or more.8.4.4 Maximum re-certification intervals are:(1) Level I and II: 3 years(2) Level lll:5 years9 Termination9.1 The certificate shall be deemed revoked when he is not engaged in NDE job.9.2 The certificate of NDE individual of any Level shall be deemed revoked when the employment is terminated.10 10.1