I'm trying to get a few things clear on UT instrument calibration certification....If ASTM E317 is performed to NIST traceable blocks by a Level III, and a report complete as defined in ASTM E317, can this constitute as the "industry" yearly certification of calibration.
Or.....does the yearly certification of calibration require the UT instrument to be sent to the manufacture. I ask this because I have been told that the manufacturer specifications are performed in accordance with ASTM E317.
18:49 Jun-05-2009 Roger Duwe NDT Inspector, API-510, 570, 653 MISTRAS, USA, Joined Jan 2009 148
Re: UT Instruments - Certification of CalibrationIn Reply to S.V.Swamy at 17:21 Jun-05-2009 .
Mr. Swamy is somewhat more stringent than what we do, and our calibrations have been audited by most [if not all] of the major end-users. Our calibrations are signed [certified] by the cognizant Level II that performed the calibration checks. We also use the 1-year maximum interval allowed by ASME Sect V. Works well, saves quite a bit of money and loss of use of our instruments that sending them out for calibration testing requires.
There was quite a bit of discussion on this Forum about 3-4 months ago on digital UT instrument 'calibration'. The consesus seemed to me to be that: "Since the instruments are not adjustable to achieve true recalibration, in-house testing seems to be the best option unless you have a specific client that has more stringent requirements. In-house calibration testing using the Code specified test blocks satisfies all major Codes and Standards."