Comparison Between Snt-Tc-1a and CP 189

December 2, 2022 | Author: Anonymous | Category: N/A
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SOUTHERN INSPECTION SERVICES

COMPARISON BETWEEN SNT-TC-1A AND CP 189 1)

SNT-TC-1A is

a Recommended Practice while CP 189 is a Standard.

2)

SNT-TC-1A is

a Guideline for the Qualification and Certification of NDT Personnel while

CP

Minimum requirements. 3) In SNT-TC-1A the employer may modify the guide to suit his need (Refer Note 1) while

CP

189 is

189 Employer

4)

can incorporate only unique or additional requirements.

SNT-TC-1A  does

Section 1.4) while

not give any specific about Education (Refer SNT-TC-1A, 2016 Edition, CP 189  gives

the minimum requirements of Education (Refer CP 189,

2016 Edition, Section 1.2). 5) Both require Employer to establish Procedure for Certification Certificat ion of of NDT Personnel. 6) In both

SNT-TC-1A and CP 189,

percentage of flawed/unflawed grading units required shall

be approved by NDT Level III. SNT-TC-1A

CP 189

7)  calls outside agency while  calls outside organization. 8) Defining the Qualification SNT-TC-1A  does not talk about any Education while

CP 189 

Education is a requirement. 9) In

SNT-TC-1A,

Level III is designated by the Employer and he need not be the ASNT Level

III while CP 189 whenever the Level III is mentioned represents the ASNT Level III. 10) In

SNT-TC-1A

(Refer SNT-TC-1A, 2016 Edition, Section 18.7), Predictive Maintenance

(PdM) is mentioned only in Level III while

CP 189 

Predictive Maintenance (PdM) is

mentioned in Level I, Level II and Level III. 11) In

SNT-TC-1A,

NDT methods like Microwave Technology, Ground Penetrating Radar, and

Guided Wave Testing etc are included while they are not in 12) In

SNT-TC-1A,

there are Three basic Levels of qualification but Employer may sub-divide

this into further levels while 13) In

SNT-TC-1A,

CP 189.

CP 189 has

Six Levels of qualification.

a person in the process of being trained is called a Trainee while

CP 189 a

person who is not certified in any level is called Trainee (Refer Note 2). 14) The classification NDT instructor is specific to

CP 189  only.

In

SNT-TC-1A,

NDT instructor

can take the class, give Job instruction, Training and Education Program approved by Level III. 15) In

SNT-TC-1A,

training requirements is given in the written practice and the written practice

shall be approved by NDT Level III. In

CP 189  also

codes outline approved by NDT Level III. 1

training shall be conducted as per the

 

 

SOUTHERN INSPECTION SERVICES

16) The term “Credit Credit”” is specifically mentioned in

CP 189 while

there is no such term in the

SNT-

TC-1A. SNT-TC-1A  training

17) As per

practice while in

can be given by anybody approved in the Employer’s written

CP 189  training

shall be given by NDT instructor or any expertise in a

specific subject. 18) In

SNT-TC-1A,

training course etc given in the written practice shall be approved by Level

III. In CP 189 NDT Level III is responsible for the content of the course. 19) In

SNT-TC-1A,

NDT Level III should be either Engineering Graduate + One year Experience

beyond Level II requirements or Two years of Engineering College (i.e.) Diploma + Two years beyond NDT Level II requirements or Person having Four years beyond Level II requirements. But in

CP 189 NDT

Level III should be ASNT Level III.

20) The term NDT Instructor I nstructor is not in

SNT-TC-1A 

but in

CP 189 

NDT Instructor shall be

designated by NDT Level III. 21) In SNT-TC-1A, Training hours can be adjusted in the Employer’s written practice based bas ed on the candidate’s education level. In CP 189, training hours are fixed as per the Appendix A. 22) As per

SNT-TC-1A,

in Eddy Current Testing, if you are qualified in one technique, training

hours for the other techniques of ET may be reduced to 40%, Experience required can be reduced to 50%. As per

CP 189  training

hours are fixed but experience required can be

reduced to 50%. 23) In both

SNT-TC-1A 

and

CP 189,

trainee should receive Radiation Safety training as

required by jurisdiction. 24) In

SNT-TC-1A,

in Infrared Thermography, if a person trained in one technique, Experience

required for the other technique to the same level can be reduced to 50% while

CP 189 

fixed as per the Appendix A. 25) In

SNT-TC-1A,

for passing the Level I and Level II examination Composite grade of 80% is

mentioned while CP 189 is Average grade is 80%. 26) As per

SNT-TC-1A,

CP 189 Color

Color Vision examination shall be conducted at 5 years interval while

differentiation examination shall be conducted at each recertification of Level I

and Level II. 27) There is no practical exam for NDT Level III as per

SNT-TC-1A  while CP 189  practical

examination involves preparing the NDT procedures appropriate to t o the Employer’s needs.  needs.  28) Technical performance evaluation for Level I is given in the

CP 189. 2

SNT-TC-1A while

no details given in

 

 

SOUTHERN INSPECTION SERVICES

29) “Expiration” is the term used in 30) In

SNT-TC-1A,

CP 189 which

is not in SNT-TC-1A.

New Technique can be added employer’s written practice and NDT Level III

should receive applicable training but as per CP 189 New techniques cannot be added. 31) “Suspension” is specified in CP 189 while SNT-TC-1A is silent about it. 32) “Termination” is the term used in the 33) For reinstatement SNT-TC-1A deals

34) As per

CP 189 differentiates

“Revocation” is used in the

CP 189.

between Suspended, Expired and Termination while

only with the Termination.

SNT-TC-1A,

Level III while

SNT-TC-1A while

maximum recertification intervals is 5 years for Level I, Level II and

CP 189 Recertification

is for every 5 years (for Level I and Level II) if he has

at least 350 hours of documented experiences. 35) As per

SNT-TC-1A,

employer while

NDT Personnel can be Re-Examined anytime at the discretion of the

CP 189 

once in every 10 years he has to repeat all the examination

(General, Specific, and Practical).

NOTE 1:

Bit it shall not eliminate the basic provisions like Training experience and testing and recertification. The employer should also provide technical rationale for such modification in the written practice. NOTE 2:

If a Level III is not certified by his employer even though he is ASNT Level III will be considered only as a Trainee.

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