There aren't any tests or exacts requirements for a blue belt in 10th Planet. It varies between instructors and the journey can be pretty ambitious at times. What I would recommend to you is: master the warm ups, have a decent understanding of all of the 10th planet specific techniques (rubber guard, lockdown, the twister series and all of that) along with a strong foundation of basic jiu jitsu, be able to communicate using all of the 10P terminology, and obviously winning some matches in competition using 10P techniques would certainly help.