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Vacuum Box is classified by ASME as an NDE Methode.
You may refer to ASME BPVC - Section V - Article 10, Mandatory Appendix II
- best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
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API 510 Inspector
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS HELLAS
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"Kale, Bhaskar M" ---16/12/2013 08:44:22---Vacuum box leak testing is to locate leaks in a pressure boundary that cannot be directly pressurizeFrom: "Kale, Bhaskar M" <bmkale@gmail.com>
To: materials-welding@googlegroups.com
Date: 16/12/2013 08:44
Subject: Re: [MW:19624] Vacuum box test- API 650
Sent by: materials-welding@googlegroups.com
Vacuum box leak testing is to locate leaks in a pressure boundary that cannot be directly pressurized. Very minute leakage throughout the body (one side of wall to other side of wall) can check with vacuum box leak test.
LPT is locating the surface opening discontinuities only. And not giving the any idea if the discontinuity is throughout the body.
Both the methods have distinct benefits and can't say which one is superior. It's purely depends what type of discontinuity you are looking for; accordingly you may apply the method.
Regards,
Bhaskar
On Mon, Dec 16, 2013 at 1:57 PM, Kumar <sk7920541@gmail.com> wrote:
- Dear members,
Does the surface cracks/ sub-surface cracks cant be detected by vacuum
box tests in API 650 tanks? in that wat LPT is superior to vacuum box.
kindly share your feedbacks.
Thanks in advance,
Kumar
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धन्यवाद,
भास्कर मनोहर काळे
+60149129098
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