I understand, do you think that removing the testosterone from the vial and transferring it to a multidose vial and using the vial for a couple of weeks even though the test does not have a bacteriostatic preservative should not cause any problems?Usually the temperature it is cooked in oil at and the 0.22um filters that are typically used are sterilizing-grade membranes, are most commonly used for solution sterilization (bacteria removal). Some even further heat the product after production. I seriously would not worry about bacteria in a pharmaceutical product. Just make sure with multi-dose vials that you sterilize the rubber top and the needle before using it.
It would be a solution at least here that the test is not marketed in vials.