What does the color red indicate on the NFPA label?

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 does the color red on the NFPA diamond represent?

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. The Health section conveys the health hazards of the material.

What does the red area on the following labels represent?

The code includes both solid and striped colors, which are used to designate specific hazards as follows: Red: Flammability hazard: Store in a flammable chemical storage area.

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What does a 3 in the Red Diamond of the NFPA hazard warning label indicate?

3-Can be ignited at all normal temperatures. 4-Very flammable gases or very volatile flammable liquids.

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 the white color on the NFPA diamond stand for?

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.

What do the colors mean in the ERG?

The ERG is organized into easily recognized colors. WHITE – Introduction, instruction, guidance, placards, and more. YELLOW – Materials ordered by 4-Digit UN/NA Number. BLUE – Materials ordered by dangerous goods material name.

What is marking and labeling?

Marking and labeling are important steps when preparing a dangerous good package for transportation. Labels often communicate the hazards associated with the package, and markings ensure the shipment is handled so that spills, accidents and exposure are prevented.

Which NFPA label should you affix to a chemical that is unstable at warm temperatures?

Which NFPA label should you affix to a chemical that is unstable at warm temperatures? An NFPA label with the number ‘1’ in the yellow quadrant indicates reactivity at a warm temperature.

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Which of the following is the most efficient method of preventing the spread of infection in a laboratory group of answer choices?

The most effective means of preventing infection is frequent and thorough hand washing or sanitization of the hands.

What does a red diamond with a 4 mean?

A four in the red indicates an extremely high ability to ignite and combust. The Yellow concerns Reactivity, or the chemical’s ability to react with other chemicals in the environment. The white indicates special precautions, usually used for oxy, or oxidizing agent.

Which color diamond of the National Fire Protection Association label represents reactivity?


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 type of warning does each diamond indicate?

The diamond is divided into four color-coded squares, each which conveys information about specific hazards present in the area. The top square is red and describes flammability hazards, the leftmost square is blue and describes health hazards, and the rightmost square is yellow and describes reactivity hazards.

What does red mean in safety?

These colors usually indicate the following: Red – indicates (1) danger, (2) stop or (3) presence of fire protection equipment. Orange – marks the dangerous parts of machines or energized equipment which may cut, crush, shock or injure employees.

What color is safety red?

Safety Color Coding Labels and Tape

Red Danger
Fluorescent Orange, Orange-Red Biosafety
Yellow Caution

What do red orange and yellow safety colors mean?

OSHA and Safety Colors

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Red must be used for fire-related hazards, as well as emergency switches, bars, and buttons on hazardous machines. … Yellow indicates caution and is used for physical hazards, including striking against, stumbling, falling, tripping, and “caught in between.”