What does white mean on a hazard diamond?
Special Hazard information
The numbers 0 to 4 are also used to rank reactivity hazards, as follows: The white diamond, appearing at the bottom of the label, conveys Special Hazard information. This information is conveyed by use of symbols that represent the special hazard.
What hazard does the white color symbolizes in the NFPA Fire Diamond?
special hazards
White NFPA Diamond At the bottom of the NFPA diamond you will find a white area, which is used for special hazards. Rather than using numbers in this section you will see a letter or symbol. The most common of these is a W, which is used to indicate that the chemical has an unusual reaction when exposed to water.
What do the colors on the fire diamond mean?
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 does the color white indicate on an NFPA 704 marker?
The four divisions are typically color-coded with red on top indicating flammability, blue on the left indicating level of health hazard, yellow on the right for chemical reactivity, and white containing codes for special hazards.
How do you read fire diamonds?
The blue section of an NFPA Fire Diamond is used to assess a material’s health hazard.
- 0 = Normal material.
- 1 = Slightly hazardous.
- 2 = Hazardous.
- 3 = Extreme danger.
- 4 = Deadly.
What is the purpose of 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.
What does 4 in the risk diamond indicate?
4-Very flammable gases or very volatile flammable liquids. The yellow diamond, appearing at the right side of the label, conveys Reactivity (or Stability) information.
How do you read a fire diamond?
What do the numbers on a fire 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.
Are NFPA diamonds required?
When am I required to use the NFPA 704 rating system? NFPA 704 labels are required when another Federal, state or local regulation or code requires their use. NFPA 704 does not specify when a container, tank or facility must label with the 704 diamond.
What are the four colors of a NFPA safety diamond?
The NFPA 704 diamond sign used to display this information has four colored sections: blue, red, yellow, and white. Each section is used to identify a different category of potential hazards.
What are fire diamonds?
A diamond’s “fire” is the effect produced when white light disperses into rainbow colors when it hits the diamond’s facets (the angled cuts in the stone). There are two main kinds of facets: Physical facets and virtual facets. A physical facet is an actual cut in a diamond.