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Teletest
Teletest Focus+ was the first system to use long-range guided wave ultrasonic testing to detect corrosion in pipelines.
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Technical Discussions
AM Anang
NDT Inspector,
-, Indonesia, Joined Oct 2001, 4

AM Anang

NDT Inspector,
-,
Indonesia,
Joined Oct 2001
4
17:06 Dec-02-2013
API 620 & ASME VIII Div.1

Dear All,

Application of ultrasonic test method for welding inspection of storage tank constructed based on API 620 2012 edition limited to a plate thickness of 10 mm minimum. In case the API 620 does not cover, can I refer to ASME VIII Div.1 2013 (newest edition) which specifies the minimum thickness of 6 mm to be inspected by ultrasonic?

Are there any hierarchy between API Standard 620 and ASME VIII Div.1?

Appreciate you comment.

Regards,
AM. Anang

 
 Reply 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
19:42 Dec-02-2013
Re: API 620 & ASME VIII Div.1
In Reply to AM Anang at 17:06 Dec-02-2013 (Opening).

Unless you are owner or class society why would you want to do this?
Possibly not to do x-ray?

I feel that you should follow specification that item is being built to and customer request whichever is more stringent.

 
 Reply 
 
collin maloney
NDT Inspector, - Plant Inspector
Applus RTD, Australia, Joined Nov 2000, 147

collin maloney

NDT Inspector, - Plant Inspector
Applus RTD,
Australia,
Joined Nov 2000
147
05:58 Dec-04-2013
Re: API 620 & ASME VIII Div.1
In Reply to AM Anang at 17:06 Dec-02-2013 (Opening).

Hi
Very simple, API is the superintendant code, so if they say 10mm is the limit then thats what it is.
API 650 and 620 both refer to ASME VIII, but if you read the API code carefully, they use ASME when they dont want to reinvent the wheel!

 
 Reply 
 

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