Flammable liquid codes

National Fire Protection /kssociation. Flammable Liquid Code, No. 30, Boston, Mass. 

In a general sense any material than can bum. This implies a lower degree of flammability, although there is no precise distinction between a material that is flammable and one that is combustible (NFPA 30, Combustible and Flammable Liquids Code, defines differences between the classification of combustible liquids and flammable liquids based on flash point and vapor pressure). 

Cast iron is undesirable (and prohibited by certain flammable liquid codes) because a brittle fracture can lead to a massive leak. Some months after this mistake, the unit received a loss prevention audit and as a result the pump bowls were replaced with ductile iron units. This same audit prompted the installation of remotely operated emergency shut-off valves around these pumps. 

Volume 1 of National Fire Codes (National Fire Protection Association, Quincy, Massachusetts) contains recommendations (Code 30) for venting, drainage, and dike construction of tanks for flammable liquids. 

Safety Considerations Design and location of storage tanks, vents, piping, and connections are specified by state fire marshals, underwriters codes, and local ordinances. In NFPA 30, Flammable and Combustible Liquids Code, 1993 (published by the National Fire Protection Association, Quincy, Mass.), liquid petroleum fuels are classified as follows for safety in handhng ... 

NFPA 30 Flammable and Combustible Liquids Code. National Fire Protection Association, Quincy, MA. 

Flammable and Combustible Liquids Code Standard for the Installation and Use of Stationary Combustion Engines and Turbines National Electrical Code Recommended Practice on Static Electricity Lightning Protection Code... 

CFR 1910.106. 1969. Flammable and Combustible Liquids. Code of Federal Regulations. Washington, DC. 

Mixers and agitators designed for flammable liquids or dusts should be constructed to minimize fire and explosive possibilities. Electrical equipment should follow the requirements of Uie National Electrical Code. Equipment should be bonded and grounded to prevent Uie accumulation of staUc electricity. 

Outdoor equipment of the type covered in Flammable and Combustible Liquids Code, NFPA, 30-1993 (ANSI), Section 5-3.3.2, where flammable vapor-air mixtures may exist under normal operation... 

The other numbers are 0 (absence of secondary danger), 2 (gas), 3 (flammable liquid already seen), 6 (toxic material), 7 (radioactive material), 8 (corrosive materials). When different figures are put together it leads to more or less complicated risk clauses. Thus 265 refers to oxidising toxic gases. The code is a stability as well as a reactivity one, as can be seen. 

Several industry standards, codes, and company internal standards were used in developing the information in Table 1.2. These include internal company standards NFPA 30, Flammable and Combustible Liquids Code (Ref. 22) NFPA 59A. Liquefied Natural Gas (Ref. 23) API 2510, Design and Construction of Liquefied Petroleum Gas(LPG) Installations (Ref. 24) iRlnformation IM.2.5.2, Plant Layout and Spacing for Oil and Chemical Plants (Ref. 25), and Factory Mutual 7-44, Spacing of Facilities In Outdoor Chemical Plants (Ref. 26). 

National Fire Protection Association. Flammable and Combustible Liquids Code. ANSI/NFPA 30 An American National Standard. Prepared in conjunction with the American National Standards Institute. Quincy, MA. 

If the area under the vessel is provided with adequate drainage capability credit may also be taken for a reduced heat input due to the runoff of any flammable liquids producing the fire exposure. Usually drainage requirements to NFPA 30 (Flammable and Combustible Liquids Code), would have to be met, namely 1 percent to a 15.2 meter (50 ft.) radius. Published literature suggests that an uninsulated vessel rupture time could be increased 100% for a highly effective drainage system. 

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