Magnetic or penetrant Flawdetection: Requirements of identification w/ letter M or P

J

Juergen Gloeggler

#1
Does anybody know the legal requirements to identifiy letter M or P on components after successful flawdetection depending on either magnetic or penetrant flawdetection is carried out?
 
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CarolX

Super Moderator
Super Moderator
#2
Magnetic Particle and Liquid Penetrant Marking Requirements

Hi Juergen Gloeggler and Welocme to the Cove,

I recall at one time a requirement for marking parts that were found to be acceptable after non-destructive testing (NDT is the term we use in the USA). I really don't remeber any details.

Perhaps this link may be of some help.

http://www.nde-ed.org/index_flash.htm

Good Luck!
 

gard2372

Quite Involved in Discussions
#3
Juergen Gloeggler said:
Does anybody know the legal requirements to identifiy letter M or P on components after successful flawdetection depending on either magnetic or penetrant flawdetection is carried out?

I guess it depends on what standard you are inspecting to? ASNT-TC-1A, ASME, EN473 etc...

For the U.S., the standard is to have a report with the testing method indicated (MT) Magnetic Particle Testing, or (PT) Penetrant Testing description of the part, pass/fail, accept/reject, serial number, tested in accordance with etc...

But, as far as I know it is general and accepted practice to include the testing method in which the inspection was done to indicate a general compliance of either design, repair or customer requirements or a combination of thereof.

Just for general purpose, you should indicate what the testing method is on the parts you are inspecting.

Another thing is are they a customer requirement?
Your "Certified" NDT inspectors should also know this standard practice.
Does your company employ a NDT Level III, or consult with one as this would be the first point of contact in regard to your questions?
 
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