![]() ![]() This NFPA hazard rating system includes three color codes and five intensity levels.Įach color code (blue, red, and yellow) of the hazard rating system corresponds to a hazard: health, fire, and instability (denotation or chemical change). The NFPA 704 standard also defines the necessary signage and information that needs to be displayed to alert personnel of the type of hazardous materials that are present. This standard, NFPA 704, outlines a hazard rating system for emergency personnel. The NFPA hazard rating system refers to, in part, a safety standard put forth by the National Fire Prevention Association (NFPA). Readers with specific questions should refer to the applicable standards or consult with an attorney.NFPA Hazard Rating System What does the NFPA hazard rating system mean? This article is not a substitute for a review of current applicable government regulations, industry standards, or other standards specific to your business and/or activities and should not be construed as legal advice or opinion. No representation is made that the information or references are complete or remain current. The information contained in this article is intended for general information purposes only and is based on information available as of the initial date of publication. “BIOLOGICAL HAZARD” – Fluorescent orange or orange-red, or predominantly so, with lettering or symbols in a contrasting color. “WARNING” – Orange, or predominantly orange, with lettering or symbols in a contrasting color. “CAUTION” – Yellow, or predominantly yellow, with lettering or symbols in a contrasting color. “DANGER” – Red, or predominantly red, with lettering or symbols in a contrasting color. Osha’s recommended color code is given below: Other gases or liquids do not need identification. For longer pipes, the interval may be 50m. The entire length or a portion, more than 30 cm, of a pipeline should be painted so that it should not be mistaken for a color band. The proper color may be applied to the entire length of the pipe or in bands of 20-25 centimeters wide near the valves, pumps, and at repeated intervals along the line.Īnti-resistant colors should be used where acids and other chemicals may affect the paints. So it is most important to identify them. The pipelines in plants or industries carry harmless or hazardous contents. Orange – Dangerous parts of machines or energized equipment such as exposed edges of cutting devices, inside of movable guards, enclosure doors, transmission guards, electric installations.īlack & White – Housekeeping and traffic markings. It indicates a safety color only if used with a circular sign. ![]() Green – Safety equipment not identified elsewhere, safety board, safe condition.īlue – Warning and information signs, bulletin boards, railroad uses. lift trucks, cranes, crane hooks, caution, transport equipment, obstructions, change in floor level, stair nosing, etc. Yellow – Risk, danger or caution, hazards of slipping, falling, striking, etc., flammable liquid storage, yellow band on safety cans, material handling equipment viz. Red – Fire protection, prohibition, danger, emergency stops on machines, red cross on medical facilities. Percentage of reflected light in Medium color Percentage of reflected light in a light color The percentage of reflected light for other colors is given below. Pure white reflects 100% whereas pure black reflects 0% when light falls on them.
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