He 1. Gently squeeze the rubber stopper to remove air from the dropper
Oh 2. Dip in solution to absorb
Oh 3. Gradually release the rubber stopper to suck the solution into the eye dropper. By appealing to the liquid quantity close to the volume required oh
Oh 5.Gently squeeze the rubber stopper to release the solution, drop by drop. Don't let the dropper touch the container and don't make higher container mouth too.
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