2703.9.8 Separation of incompatible materials.
Incompatible materials in storage and storage of materials that are
incompatible with materials in use shall be separated when
the stored materials are in containers having a capacity of
more than 5 pounds (2 kg) or 0.5 gallon (2 L). Separation
shall be accomplished by:
1. Segregating incompatible materials in storage by a
distance of not less than 20 feet (6096 mm).
2. Isolating incompatible materials in storage by a
noncombustible partition extending not less than 18
inches (457 mm) above and to the sides of the stored
3. Storing liquid and solid materials in hazardous material storage cabinets.
4. Storing compressed gases in gas cabinets or
exhausted enclosures in accordance with Sections
2703.8.5 and 2703.8.6. Materials that are incompatible shall not be stored within the same cabinet or