Flammable liquid storage cabinets do not need to be vented and any vents should be sealed with the bung provided by the manufacturer (4.3.4).  All cabinets must be marked with “FLAMMABLE – KEEP FIRE AWAY” in “conspicuous” lettering (4.3.5).  At Penn, we do not require free-standing cabinets to be vented, but under-hood cabinets may be vented into the hood using vent kits provided by the manufacturer.

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All Class I, Class II and Class IIIA flammable liquids in containers 1 gallon and greater must be stored in a flammable liquids storage cabinet (NFPA 30 4.3.1).  Flammable liquids storage cabinets that meet the construction requirements of NFPA 30-4.3.3, or are custom built and tested in accordance with section NFPA 30-4.3.3(a), or meet the requirements of UL 1275 are acceptable.

There are buildings on campus which have cabinets that do not meet the above requirements but are currently being used as flammable liquid storage cabinets.  These cabinets are often located under the sinks or under fume hoods.  Some examples are shown below:

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NFPA 30 states a flammable liquid storage cabinet must be “constructed to limit the internal temperature at the center of the cabinet and 1 inch from the top of the cabinet to 325 degrees F, when subjected to a 10-minute fire test” (30 4.3.3(a)). Therefore, there are specific construction requirements.

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Where to buyBitrex

Are you familiar with denatured alcohol? How about Bitrex? Denatured alcohol, also referred to as alcohol denat, is ethyl alcohol (ethanol) that has been treated with additives such as Bitrex to make it unsuitable for consumption. The primary purpose of denaturing ethanol is to avoid taxes levied on alcoholic beverages, as well as to regulate its use in various industries and applications. Bitrex is one of three denaturants commonly used in completely denatured, also called Euro denatured, alcohol.

Alcohol denatured with Bitrex finds application across diverse industries, making it an indispensable substance for several purposes:

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Are you interested in the benefits of denatured alcohol? Nedstar can supply you with denatured alcohol with Bitrex in various forms, tailored to suit your specific needs. Discover the versatility and power of denatured alcohol today!

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Less than 5 gallons (approximately 20 L) of flammable liquids can be stored in these cabinets.  Larger quantities will require the purchase of a flammable liquid storage cabinet.  For purchasing questions, contact us at ehrs@ehrs.upenn.edu.

Bitrex, scientifically known as denatonium benzoate, is a very bitter substance. This intensely bitter compound is added to denatured alcohol to act as a powerful deterrent against human consumption. By incorporating Bitrex into denatured alcohol, manufacturers ensure that it remains unpalatable and prevents accidental ingestion or misuse.

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