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  1. ETI1

    UCS-66(c)(4) vs UCS-66.3 governing thickness question

    Hello: I'm looking for some clarification as to rating a LWN with SA-105 to -20F. Per UCS-66(c)(4) it appears that if the nozzle (LWN) is produced per B16.5 and the meets the ID requirements then the nozzle is exempt from impact testing. However, in my case I have a 20" CL600 LWN (nozzle wall...

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