Re: [MW:23410] ASME Part II C- Difference between Lot and Batch Testing of welding conumables

No, far and away in excess of any Code requirement.  

This is strictly a customer requirement.  Except for a very few extreme conditions, this is unnecessary and all costs should be born by the customer.

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From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> on behalf of Anban <gane2478@hotmail.sg>
Sent: Sunday, September 06, 2015 1:52 PM
To: Materials & Welding
Subject: [MW:23408] ASME Part II C- Difference between Lot and Batch Testing of welding conumables

 

Dear Experts

 Pls breakdown the difference and limitation of its applicability.

 I was told Lot No used in PQR Qualification need to be the same used for Production Welding.
 I mean it is neither essential or supplementary essential variable

Does Design/Construction Codes such as  ASME B31.3 or AWS D1.1/ AWS D1.16  have any restrictions?

Pls advise

Thanks

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