Mastertronic tests results are off after vial refill?

Mastertronic tests results are off after vial refill?

Refilling the vials with regent there are a number of do's and don'ts.

1. When refilling vials with the same batch of regent please shake the regents before toping up the vials.
2. After you have toped up to the neck of the vial (NOT INCLUDING THE NECK) Put the cap on the vial and shake the vial to mix the bottom regent that was
   left with the new regent added.
3. If you are down to 7ml and you have to replace the regent with a new batch discard the old regent (and remember there is a stirrer in there)wash vial and dry
   and refill to the neck.
4. Remember to also turn the vial on the Carousel to a new position for the needles to enter with a new puncher site.