a dispensing tip or cap
The bottle has to be cleaned on the inside to an extreme
standard
The bottle, without the tip or cap, has to have an opening around
*0 mm or larger
The dispensing tip is a check-ball arrangement or something similar
THAT WILL NOT ALLOW ATMOSPHERE TO ENTER THE BOTTLE AS THE CONTENTS
ARE DISPENSED A FEW DROPS AT A TIME OVER A PERIOD OF DAYS OR
WEEKS.
The bottle will probably also require some sort of collapsing
feature to accommodate this function.
The contents will be H2O, highly purified to less than *0 ppb
contaminant.