In laboratories, the most serious issue is the restriction of access to hazardous chemicals to appropriate personnel. Keep the door to the storeroom locked and only allow authorized people to get at these materials.
The space provided for chemical storage should be sufficient to permit containers to be no more than two deep on a shelf. There should be enough room between containers to permit a hand to reach in and remove a bottle without knocking something off the shelf.
Put a supply of colored, adhesive dots in the storeroom. Have everyone mark the cap of everything used for the next year. At the end of the year, make up a list of the unmarked containers. Send the list to waste disposers for a bid in removal.
The use of lips on shelves is recommended in locations where earthquakes, hurricanes, or tornadoes are likely. In this case, a removable wire insert type is suggested.
Dr. James A. Kaufman is the founder and president of The Laboratory Safety Institute (LSI) www.labsafety.org - an international, non-profit center for safety in science and science education. LSI provides workshops, seminars, onsite training programs, lab safety program development consultations, facilities inspections and regulatory compliance assistance. Contact LSI with all your lab safety questions: 800-647-1977 or firstname.lastname@example.org.