Fig UCS-66.2 Fig UCS-66.2 david339933 (Industrial) (OP) 15 Mar 17 19:19 Folks, Is tr in Fig UCS-66.2, the UG-27/UG-28 calculation (ta in UG-45) or final tUG-45? If it is UG-27/UG-28, can it be below UG-16 Minimum value? Thanks. RE: Fig UCS-66.2 gr2vessels (Mechanical) 16 Mar 17 01:58 tr (UCS-66.2) = t (UG-27/28). ta (UG-45) = t (UG-27/28) + CA Cheers, gr2vessels RE: Fig UCS-66.2 david339933 (Industrial) (OP) 16 Mar 17 11:04 Thanks, Jurisdictional Authority was telling me otherwise, and started questioning my own sanity.