Chemical Storage Guidelines-Environmental Health & Safety - Carnegie Mellon University

Thursday, July 1, 2010

Chemical Storage Guidelines

Chemicals should be stored according to hazard classification.  They can be stored alphabetically, provided they are segregated by the hazard class first!  This requires forethought, planning and even a bit of research on the hazards of each chemical.  Making storage even more difficult is the fact that most chemicals have multiple hazards.
The U.S. Dept. of Transportation recommends the following hazard class hierarchy;
1.    Radioactive Materials
2.    Reactives – segregated further into subgroups of Pyrophoric, Explosive, Organic Peroxides
3.    Flammables – segregated further into subgroups of Flammable/Combustible Liquids and Flammable Solids
4.    Corrosives – segregated further into subgroups of Organic Acids, Inorganic Acids and Bases
5.    Oxidizers
6.    Acutely Toxic
7.    Toxic
NOTE: for the purpose of storing chemicals, the term segregation means that the materials are stored in separate lockers, fume hood cabinets or on separate shelves.  For example: For assistance in understanding proper storage and segregation, contact Chemical Safety at x8-7501 (or

By: Jeffrey Harris