What are the five NFPA hazard categories?
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) RATING SYSTEM Chemical substances are rated for degree of HEALTH RISK (blue diamond), FLAMMABILITY (red diamond), REACTIVITY (yellow diamond), on a scale of 0 to 4.
What are hazard diamonds?
The NFPA 704 Diamond, commonly referred to as the NFPA Hazard Diamond, provides a system for identifying the specific hazards of a material and the severity of the hazard that would occur during an emergency response.
What do each of the NFPA 704 Fire diamond’s flammability ratings 0-4 mean?
1-Ignites after considerable preheating. 2-Ignites if moderately heated. 3-Can be ignited at all normal temperatures. 4-Very flammable gases or very volatile flammable liquids.
What does a 3 in the red diamond of the NFPA hazard warning label indicate?
Unstable at high temperature and pressure. Reacts with water. 2-Normally unstable but will not detonate. 3-Can detonate or explode but requires strong initiating force or heating under confinement.
How do you read hazard diamonds?
The number corresponds to the level of danger a chemical poses. The lower the number, the lower the hazard. The numbers range from zero to four, with zero representing no hazard at all, and four representing an extreme hazard. Each number also has a specific meaning based on which diamond it is in.
What is NFPA diamond code?
The National Fire Association (NFPA) has developed a color-coded number system called NFPA 704. The system uses a color-coded diamond with four quadrants in which numbers are used in the upper three quadrants to signal the degree of health hazard (blue), flammability hazard (red), and reactivity hazard (yellow).
What is the most severe NFPA hazard rating?
Number System: NFPA Rating and OSHA’s Classification System 0-4 0-least hazardous 4-most hazardous 1-4 1-most severe hazard 4-least severe hazard • The Hazard category numbers are NOT required to be on labels but are required on SDSs in Section 2.
What number represents the highest level of danger an NFPA 704 hazard?
What do the 4 Diamonds in the NFPA represent?
The system uses a color-coded diamond with four quadrants in which numbers are used in the upper three quadrants to signal the degree of health hazard (blue), flammability hazard (red), and reactivity hazard (yellow). The bottom quadrant is used to indicate special hazards.
What is NFPA hazard identification for?
The hazard identification signal is a color-coded array of four numbers or letters arranged in a diamond shape. The National Fire Protection Association (NFPA) specifies a system for identifying the hazards associated with materials.
What is NFPA 704 or the fire diamond?
The “Fire Diamond” or “NFPA 704” refers to signs posted at locations that contain hazardous materials. The purpose of the signs are to alert emergency personnel to the risks posed by the materials. The term, “NFPA 704,” refers to the specific “Standard System for the Identification of the Hazards of Materials for Emergency Response,” which is a standard maintained by the National Fire Protection Association (U.S.A).
What is the hazard warning Diamond?
What is the hazard warning diamond? The hazard warning diamond has more universal recognisability than Tom Cruise – it is one of the most common health and safety symbols out there. Hazard warning diamonds are stickered to the sides of Bulk Liquid Storage tanks on high hazard sites world-wide.
What is diamond hazard label?
– Top diamond is red to tell you about flammability. – Left diamond – blue, to indicate health hazards. – Right diamond – yellow, on chemical reactivity – Bottom diamond – white, telegraphs special information on radioactivity, acidity, poisons or other things.
What do the colors represent on the NFPA diamond?
– Red Section: Flammability. The red-colored section of the NFPA Diamond is located at the top or twelve o’clock position of the symbol and denotes a material’s flammability and susceptibility to – Yellow Section: Instability. – Blue Section: Health Hazards. – White Section: Special Precautions.