1. The dropper on the drip bottle is compatible with the drip bottle.
2. Do not rinse the dropper on the drip bottle with water.
3. Do not hold the strong alkali (glass stopper) for a long time, not long to place the powerful oxidizing agent.
4. The remaining drug must not be poured back.
5. The dropper should not be inverted and placed horizontally to prevent the reagent from corroding the dropper.
6. Drip, the dropper can not be placed in the container, so as not to contaminate the dropper, damage the container.
7. The dropper can not be placed flat or inverted, in case the liquid flow of human glue head. 8. Use cork or rubber stopper for alkaline solution.