It is critical to recognize that when you vent a flammable storage cabinet, unless you provide a fire actuated damper on the inlet and outlet you lose all the fire resistance of the cabinet. No flammable storage cabinet vendor I have ever contacted was willing to provide any data to support that a ventilated cabinet passes the required fire testing. All were very clear that they felt the cabinet would fail quickly. Fire rated dampers are available (although h not cheap) but flitting them on under hood cabinets is problematical at best although easily done on standalone cabinets. An example of one can be found at http://www.safetyemporium.com/j-25777.

For more information on this area you may want to look at" Should You Vent a Flammable Storage Cabinet? At https://www.linkedin.com/pulse/should-you-vent-flammable-storage-cabinet-richard-palluzi/.

Note that NFPA 30 The Flammable and Combustible Liquids code, NFPA 45 Fire Protection for Laboratories, and most fire codes prohibit this practice unless adequate mitigative measures are in place.

And certainly you cannot use an acid storage cabinet for a flammable liquid storage cabinet. While they may, in some cases, be made almost identical, the acid storage cabinet is not approved by the manufacturer, not marked properly, and not allowed by any code.

Richard Palluzi

PE, CSP

Pilot plant and laboratory consulting, safety, design,reviews, and training

www.linkedin.com/in/richardppalluzillc/

Richard P Palluzi LLC

72 Summit Drive

Basking Ridge, NJ 07920

rpalluzi**At_Symbol_Here**verizon.net

908-285-3782

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