Don't know the answer to that Herod but, before the "Gear Up" order is given by PF, we require a positive climb indicated on the Radio Altimeter, VSI and Baro altimeter. One or two out of the three isn't good enough. It is the task of PM to observe those criteria and make that call. I also brief that we may receive a Config Warning if the aircraft temporarily touches down on the runway during the go around, this is a normal temporary consequence due to the landing flap and gear configuration. That Config Warning can be mistaken for a Fire Warning though, rather distracting if you're not expecting it.