Will never understand this question. Basically just asking other people to do math for you.
If you put 1ml in, then you have 5000iu per ml
So if you draw 10% of that (0.1ml) then you get 10% of the dose (500iu)
If you change the volume of water, adjust math accordingly
Just as a courtesy because I really believe you just don't know..
I'd be very careful what you post. Coming on here and soliciting your lab without being verified and having your own thread is probably going to get you booted pretty quick. To my understanding if you want to source here, there's...