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).
How many colors are there on a hazard diamond?
The label is diamond-shaped, made up of four smaller diamonds, one each blue, red, yellow, and white. A number or special symbol is placed on the four diamonds.
What does the 4 in the blue diamond mean?
The numbers superimposed over the colors rank the severity or danger, ranging from one to four, with four being the highest rating. The blue indicates potential health effects. A four in the blue means severe and immediate health effects, including death, and a one time exposure can cause lasting health problems.
How do you read danger diamonds?
Within the diamond is a number (with the exception of the white diamond). 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.
What is the hazard diamond called?
NFPA 704, also known as a fire diamond, is a diamond-shaped sign or picture that tells people about the hazards of a chemical compound. It was designed in 1960 by the National Fire Protection Association, as a way of quickly telling firefighters and other emergency workers what kind of dangers might be nearby.
What are the hazard colors?
Some common colors and their meaning include:
- Red: Fire protection equipment. Danger, high risk of injury or death. …
- Orange: Moderate risk of injury. …
- Yellow: Caution statements. …
- Green: Safety equipment or information. …
- Blue: No immediate hazard.
- Red – combustible materials.
- Yellow – oxidizers.
- White – poison or toxic.
What does 4 represent in the NFPA 704 Diamond?
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. … Acute hazards are more typical for emergency response applications.
What does Level 4 flammability hazards indicate?
Risk level 4: Very flammable gases or very volatile flammable liquids. Shut off flow and keep cooling water streams on exposed tanks or containers. Risk level 3: Materials that can be ignited under almost all normal temperature conditions. Water may be ineffective because of the low flash point.
What are the 4 quadrants of the hazardous materials Diamond?
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).
When should you look up a chemical’s MSDS?
A manufacturer, importer, supplier, or employer shall check the accuracy of a Safety Data Sheet (SDS) based on the actual circumstances and update it as needed. A Safety Data Sheet shall be reviewed at least every 3 years. Records of SDS updates such as content, date, and version revision, shall be kept for 3 years.
How do you read a hazard label?
Hazard ratings range from 0 to 4, with 4 being the most hazardous. These are used for 3 categories: health (blue), flammability (red), and instability (yellow). For example, if the substance has a low risk for flammability, a “1” may appear in the Flammability section.
What do the colors red blue yellow and white represent on the NFPA 704 Diamond?
The four bars are color coded, using the modern color bar symbols with blue indicating the level of health hazard, red for flammability, orange for a physical hazard, and white for Personal Protection.
What does the R stand for in ERG?
Response. Emergency Response Guide. What does the R stand for in ERG? Safety of responders.
What does it mean when the number 4 is written in the Blue diamond on the National Fire Protection Association NFPA label?
4-Very flammable gases or very volatile flammable liquids.
What does the HMIS rating mean?
The Hazardous Materials Identification System (HMIS) is a hazard rating system that uses color bar labels to identify and provide information about chemical hazards. It was developed by, and is proprietary to the National Paint Coatings Association (NPCA), now known as the American Coatings Association (ACA).