I just want you to clarify something, are you planning on dosing the gh via weight of powder? Maybe theres a legit reason to want to know the weight but generally, they whole vial needs to be reconstituted at once, and you dose it via the volume of water you add.
EDITED: If you have 10IU in 1ml, then you have 1IU/0.1cc which is "10" on a U100 slin pin.