The Core Test Wrapper Handbook formatIsbn:Softcover 9781489987693 tr (retention time) and RIA O.P tr (retention time) and RIA (radioimmunoassay) are usually defined in the article concerned experimental autoimmune MG (EAMG) I ran into first hand the problem of trying to deliver what used to be a whole chip with something on the order of over 400 interconnect signals to a design team that was going to stuff it into a package with less than 220 signal pins and surround it with other logic 1) boundary scan ring that was around my core when it was a chip was going to be woefully inadequate since it did not support speed signal application and capture and independent use separate from my core