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444 views
02:03 Sep-27-2004
Raúl Ortiz
hidrostatic testing

Hello,Which ASME specification talk about the maximum chloride contents in water used for pressure hidrostatic testing of a pressure vessel constructed of stainless steel according to the ASME sect. VIII?
thank you.



 
03:17 Sep-27-2004

John O'Brien

Consultant, -
Chevron ETC ,
USA,
Joined Jan 2000
278
Re: hidrostatic testing ASME design Codes do not clearly deal with this. They send you to reference litreature from NACE.

You may want to look at guidance in NACE RP 0170.API in Piping codes recommends Potable Water defined in US as less than 250 ppm chloride. Others would consider this high and may set limits at 100 ppm. Alternatives of course are inhibitors and maintaining pH above 10 follwed by proper drying.


 


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