aim the diluent at the glass wall, not at

if you cannot read the mark confidently, your volume is too small. redo it at a lower concentration

label the date too. you will not remember which vial is which by week 24

my vial pulled the water in on its own, is that the vacuum or did i do something

thats the vacuum

is it normal for the cake to look slightly collapsed on one side

one unit is 0.01ml. 100 units is 1ml. everything else in this channel follows from that

thats the vacuum

i keep a spare vial of bac water in the fridge purely so i never rush the maths

my 10mg vial weighed 11.4g on the jewellery scale, is that wrong