National Board of Fire Underwriters

National Board of Fire Underwriters, Chem. Eng. Nem25, 1594 (1947). 

According to the National Board of Fire Underwriters, activated carbons normally used for water treatment pose no dust explosion ha2ard and are not subject to spontaneous combustion when confined to bags, dmms, or storage bins (64). However, activated carbon bums when sufficient heat is appbed the ignition point varies between about 300 and 600°C (65). 

Define plant areas handling hazardous and lethal materials and set rules for design considerations, such as ventilation, explosion walls, etc. Flammable storage materials may require enclosed dikes, foam systems and the like. Refer to National Board of Fire Underwriters or specific insurance company to coordinate recommended protection. Attaway has details on many points to consider. 

Refs 1) Anon, The Rose burg, Oregon, Fire, Explosion and Conflagration , Report by the National Board of Fire Underwriters, NY (1959) 2) Anon, C EN 38 (15), 35-6 (1960) 3) S. 

A designer of relief systems must be familiar with governmental codes, industrial standards, and insurance requirements. This is particularly important because local government standards may vary. Codes of particular interest are published by the American Society of Mechanical Engineers, the American Petroleum Institute, and the National Board of Fire Underwriters. Specific references have already been cited. It is recommended that relief designers carefully consider all codes and, where feasible, select the one that is most suited to the particular installation. 

Bureau of Explosives of the Amer Assoc Railroads and the National Board of Fire Underwriters. Detailed accounts of these investigations are given in a number of reports (Refs 54, 55, 56, 59, 62, 66). It has been accepted generally that the fire on... 

Unmodified polyethylenes are flammable and are classified in the slow-burning category by the National Board of Fire Underwriters. Burning rate is approximately 1—1,5 inches (2.5—3.8 centimeters) per minute. The flammability of polyethylene may be retarded significantly by the addition of flame retardant compounds, such as antimony tnoxide along with halogenated compounds. 

The National Board of Fire Underwriters defines the ignition temperature of any solid material as the lowest temperature to which any part of it must be raised to cause the material to ignite (3). The ignition temperature of wood varies from 380 to 870 F. depending on the kind of wood and the size, shape and condition of the sample the method, rate, and conditions of heating the method of measuring the... 

Underwriters Laboratories The Underwriters Laboratories (UL) is a nonprofit organization, sponsored by the National Board of Fire Underwriters, to which manufacturers voluntarily submit their devices, systems, and materials for examination and test with reference to fire, accident, and crime hazards. Products that are... 

Underwriters Laboratories, Inc. A laboratory estabhshed by the National Board of Fire Underwriters which tests equipment, materials, and systems that may affect insurance risks, with special attention to fire dangers and other hazards to hfe. 

In line with this approach, the CWS, at the request of representatives of the National Board of Fire Underwriters, conducted a demonstration at Edgewood Arsenal on 9 October 1940, at which magnesium and oil incendiary bombs were ignited and extinguished. This demonstration was the first of hundreds staged by the CWS during the war to inform civilians about the character of incendiary bombs and the methods of handling them. 

Gas, Specifications and Test Methods, and Standard Factors for Volume Correction and Specific Gravity Conversion of LPG Gases and Volatile Gasolines. The hazards of handling volatile liquids are emphasized by Pamphlet 58 of the National Board of Fire Underwriters. ... 

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