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 does the number inside the boxes on a hazmat diamond represent?
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).
How do you read a diamond label?
The label is a diamond, and inside, four smaller diamonds.
- 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 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.
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 is a hazard code?
Hazard statements are assigned a unique numerical code which can be used as a handy reference when translating labels and Safety Data Sheets written in other languages.
What do the numbers on hazard signs mean?
Symbols. 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. The number ratings range from 0-4. Blue/Health. The Health section conveys the health hazards of the material …
What does a health rating of 3 mean?
Level 3 – Materials that can affect health or cause serious injury, during periods of short exposure, even though prompt medical treatment is give. ◆ Level 2 – Materials that can cause incapacitation or residual injury, during intense or continued exposure, unless prompt medical treatment is provided. ◆
What does the color white within a diamond indicates?
The white indicates special precautions, usually used for oxy, or oxidizing agent. Sometimes fire diamonds can be misleading about the chemical hazards actually at a facility.
How do you check a diamond serial number?
Diamonds graded by the GIA have serial numbers to prove their authenticity. The serial number on the diamond corresponds with the number on the certificate, so you know it’s a match. The number is engraved on the girdle of the diamond, which is the area of the stone that separates the top from the bottom.
What does red in the risk diamond represent?
The red diamond, appearing at the top of the label, conveys Flammability Hazard information. Again, the numbers 0 to 4 are used to rate the flammability hazard, as follows: 0-No hazard.
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.
What does a hazard identification label with a red diamond and the number 1 indicate?
Answer: A – A red diamond with a number 1 is part of the hazard identification system and indicates a mild flammability hazard.
What is the signal word found on this label?
What is a signal word? A signal word is a prompt that alerts you about the degree or level of hazard of the product. There are only two signal words used: “Danger” or “Warning”. “Danger” is used for high risk hazards, while “Warning” is used for less severe hazards.
What 2 signal words can appear on a label?
There are only two words used as signal words, “Danger” and “Warning.” Within a specific hazard class, “Danger” is used for the more severe hazards and “Warning” is used for the less severe hazards. There will only be one signal word on the label no matter how many hazards a chemical may have.
What number is used for the least serious hazard on a label?
A number rating system of 0-4 is provided to rate each of the four hazards and is placed on a placard. 0 represents the least hazardous while 4 represent the most hazardous.