What are the requirements for NDT qualification? Qualification level of testing personnel

Date：2022-05-25 14:33:03Views：2044

Due to the particularity of their profession, nondestructive testing personnel have a qualification access mechanism to control their quality. In short, they need to work with certificates. Personnel engaged in nondestructive testing shall undergo strict training and assessment according to the provisions of relevant regulations or technical conditions, hold the grade qualification certificate issued by relevant examination organizations, engage in the inspection of corresponding assessment items, and the signature on the test report will have legal effect.

China's NDT training system and international NDT standard iso9712 were prepared by the international technical committee. China nondestructive testing society is related to 8 government agencies or industrial departments. These non-destructive testing qualification certification institutions have formulated their own assessment rules for non-destructive testing personnel. Students need to obtain corresponding qualification certification according to their industry before they can engage in non-destructive testing in this field.

The qualification level of NDT personnel is divided into three levels

The qualification of NDT personnel is divided into level 1 (primary), level 2 (intermediate) and level 3 (Senior). Each level of NDT personnel has its corresponding responsibilities.

Responsibilities of level 1 (Junior) personnel:

Level 1 certified personnel shall have demonstrated the ability to perform NDT according to NDT operation instructions under the supervision of level 2 or 3 personnel.

Within the competence specified in the certificate and authorized by the employer, level 1 personnel can perform the following tasks according to NDT operation instructions:

a) Adjust NDT equipment;

b) Perform testing;

c) Record and classify test results;

d) Report the test results.

Level 1 certified personnel shall not be responsible for selecting test methods or technologies, nor shall they evaluate the test results.

Responsibilities of level 2 (intermediate) personnel:

Level 2 certified personnel shall have demonstrated the ability to perform NDT according to the established process procedures.

Within the competence specified in the certificate and authorized by the employer, level 2 personnel can:

a) NDT technology for selecting the detection method used;

b) Limit the application scope of the detection method;

c) Convert NDT specifications, standards, technical conditions and process procedures into NDT operation instructions according to actual working conditions;

d) Adjust and verify equipment settings;

e) Implement and supervise the inspection;

f) Interpret and evaluate the test results according to applicable specifications, standards, technical conditions or process procedures;

g) Implement and supervise all work belonging to level 2 or lower;

h) Provide guidance to level 2 or lower inspectors;

i) Report NDT results

Responsibilities of level 3 (Senior) personnel:

Level 3 certified personnel shall have demonstrated the ability to perform and command NDT operations according to their certification contents.

Within the competence specified in the certificate and authorized by the employer, level 3 personnel can:

a) Explain specifications, standards, technical conditions and process procedures;

b) Rich practical knowledge of raw materials, finished products and processing technology required in the selection of NDT methods, determination of NDT technology and assistance in the formulation of acceptance criteria (in case of no ready availability);

c) Familiar with other NDT methods

Within the competence defined in the certificate, level 3 personnel shall

a) Take full responsibility for testing facilities or examination centers and employees;

b) Formulate, edit and review the correctness of the process, and confirm the instructions and procedure documents of NDT;

c) Explain standards, procedures, regulations and procedure documents;

d) Determine the specific testing methods, process procedures and NDT operation instructions adopted;

e) Implement and supervise all work at all levels;

f) Provide guidance to NDT personnel at all levels.

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