NFPA 30: Flammable and Combustible Liquids Code

Current Edition: 2012, Next Edition: 2015

NFPA 30 is the standard used worldwide for flammable combustible liquids. It is typically adopted by reference within the codes.

For example, many states that have adopted the International Fire Code will need NFPA 30, since Chapter 34 of the International Fire Code references NFPA 30 in a variety of topics including

Chapter 34 of the International Fire Code references NFPA 30 thirty two times. In addition to sections of NFPA 30 that are adopted by references in codes, NFPA 30 can also be used as alternative methods to specific code requirements. For example there are specific sprinkler design densities and protection systems in Chapter 34 of the International Fire Code. Applicable protection design in NFPA 30 can be used as an alternative to the requirements in the International Fire Code.

New testing using specific heads such as low pressure ESFR's have been included in NFPA 30, allowing additional options of protection in storage warehouses or big box retail stores.

Keeping abreast of alternative designs found in standards such as NFPA 30 is part of what Klausbruckner & Associates does to provide the best service and options possible for our clients.

Our licensed experts will solve your fire and building code compliance issues fast and cost effectively! Call us at 1-619.677.2004.

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Definition of Flammable and Combustible Liquids

Flammable Liquids - Those liquids having a flash point below 100 °F are classified as Class I liquids and are subdivided as follows:

Combustible Liquids - Those liquids having a flash point at or above 100 °F are classified as either Class II or Class III liquids and are subdivided as follows:

Unstable Liquids - Those liquids that will vigorously polymerize, decompose, undergo condensation reaction, or become self-reactive under conditions of shock, pressure, or temperature. Examples of unstable liquids are Nitroglycerin, Styrene, Isoamyl Nitrite, and Cyclohexane.

DOT classifications are different in that the combustible liquids flashpoint range is only between 140 °F to 200 °F, while fire code flammable combustible definition is any liquid with flash points greater than 100 °F. Therefore liquids with flashpoints exceeding 200 °F are not considered combustible under DOT regulations, but they are under fire code.

Additionally, chemicals having a flashpoint between 100 °F and 140 °F are considered Flammable Liquids under DOT regulations, but when based on the fire code definitions they are Class II liquids.



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