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www.processoperations.com/HazChemProc/CP_Chp04b.htm

Flammable Materials. Liquids. Liquids are often classified as "flammable" or "combustible" (OSHA, DOT, NFPA), as defined below. In addition, EPA defines "ignitable" as a liquid with a flash point of less than 140 oF.

en.wikipedia.org/wiki/Flammability

Antonyms of "flammable/inflammable" include: non-flammable, non-inflammable, incombustible, non-combustible, not flammable, and fireproof. Flammable applies to combustible materials that ignite easily and thus are more dangerous and more highly regulated.

www.osha.gov/dte/library/TrngandMatlsLib_FlammableLiquids.pdf

FlammableLiquids 29 CFR 1910.106 ... Federal Regulations (regulations issued by the Hazardous Materials Regulations Board, Department of Transportation), shall be deemed to be acceptable. ... class of flammable liquid they contain. Design,Construction and Capacity of Storage Cabinets.

www.thetankshop.ca/download/NFPA-Classifications of Flammable & Combustible liquids UL...

NFPA Classifications of Flammable and Combustible Liquids The classification system is based primarily on the flash point of the liquid; that is, the minimum temperature at which sufficient vapor is given off the liquid to form an ignitable mixture with air. NFPA 30, Flammable and Combustible Liquids Code, published by the National

www.freightquote.com/how-to-ship-freight/shipping-hazardous-materials-classes

Hazardous materials are defined by the U. S. Department of Transportation in accordance with the Federal Hazardous Material Law regulations. A DOT hazardous material classification is applied if a material, in a particular amount and form, poses an unreasonable risk to health, safety or property. Below is the list of DOT hazard classes.

www.engineeringtoolbox.com/hazardous-areas-classification-d_345.html

Class Nature of Hazardous Material; Class I: Hazardous because flammable gases or vapors are present (or may be present) in quantities sufficient to produce explosive or ignitable mixtures. Class II: Hazardous because combustible or conductive dusts are present (or may be present) in quantities sufficient to produce explosive or ignitable ...

en.wikipedia.org/wiki/HAZMAT_Class_2_Gases

A non-flammable, nonpoisonous compressed gas (Division 2.2) means any material (or mixture) which: Exerts in the packaging an absolute pressure of 280 kPa (40.6 psia) or greater at 20 °C (68 °F), and

ehs.ncsu.edu/shipping/hazardous-materials-classification

A Packing Group may be listed next to the hazard class which denotes the relative danger of the material. The lower the group number the higher the hazard and the stricter the packing requirements. Not all classes are broken into packing groups.

blink.ucsd.edu/safety/research-lab/chemical/liquids/index.html

Flammable and combustible liquids ignite easily and burn with extreme rapidity. Flammability is determined by the flash point of a material. Flash point is the minimum temperature at which a liquid forms a vapor above its surface in sufficient concentration that it can be ignited.

www.osha.gov/pls/oshaweb/owadisp.show_document?p_id=9752&p_table=standards

"Exceptions." Materials other than steel, nodular iron, or malleable iron may be used underground, or if required by the properties of the flammable liquid handled. Material other than steel, nodular iron, or malleable iron shall be designed to specifications embodying principles recognized as good engineering practices for the material used.