Re: [MW:26526] Acceptance criteria as per B 31.3

Dear sir,

Sorry , but I repeating my query.

We have the process piping, according to B31.3
According to table 341.3.2, under M category fluid, acceptance for the length of incomplete penetration is given as should be less than or equal to 38mm in any 150mm weld length.

My query is that, M category fluid comes under toxic means product service which makes harms to human being.
Under such category, how asme code says that such long incomplete penetration is allow.

Where as, ASME sec viii div I, completely reject the crack, incomplete Penetration and incomplete fusion.

My point is that, B 31.3 could been also be strict for LP, LF and crack specially for toxic service pipe lines/ process lines.

I have latest code also, and acceptance criteria found same.


Regards
Prasad

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