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 are the four colors of a NFPA safety diamond and what does each color represent?
The NFPA diamond is made up of four smaller diamonds that each have a different meaning and rating. The four smaller diamonds are red,blue,white and yellow. Each color stands for a different category they are health,flammability,reactivity and special.
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.
What color in the NFPA Fire diamond indicates a health hazard?
Codes. 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 does a number 4 in the red colored section of a hazard class sticker mean?
CLASS 4 – Flammable Solids, Substances liable to spontaneous combustion; Substances that on contact with water emit flammable gases (water-reactive substances)
What does yellow in the risk diamond represent?
The yellow diamond, appearing at the right side of the label, conveys Reactivity (or Stability) information. The numbers 0 to 4 are also used to rank reactivity hazards, as follows: … This information is conveyed by use of symbols that represent the special hazard.
What are the colors on a chemical hazard label?
Many container labels will have diamond or a box that is divided into color coded sections: Health (blue), Flammability (Red), Reactivity (Yellow) and Other or Corrosive (white).
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 NFPA mean?
The National Fire Protection Association (NFPA) is a global self-funded nonprofit organization, established in 1896, devoted to eliminating death, injury, property and economic loss due to fire, electrical and related hazards.
What does yellow diamond says about this chemical?
The yellow diamond tells about reactivity: how quickly the compound reacts with other materials. (For example, some chemicals, like ammonium nitrate, explode when they touch water; this is an example of reactivity.)
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 does the blue diamond represent on an NFPA container label?
The blue diamond, appearing on the left side of the label, conveys Health Hazard information for persons exposed to the material.
What is a Class 4 Division 4.1 hazardous material?
Class 4 dangerous goods include flammable solids, substances liable to spontaneous combustion and substances which, in contact with water, emit flammable gases. There are three sub-divisions: Division 4.1: Flammable solids. Division 4.2: Substances liable to spontaneous combustion.
What are the four sections of a DOT placard?
The square is divided into four sections, color coded: Red – flammability; blue – health hazard; yellow – reactivity/instability; White – special hazard, such as oxidizers, water reactive or Asphyxiating gas. The red, yellow and blue sections are labeled on scale of 0 to 4; 0 ‘minimal hazard’ to 4, ‘severe hazard’.
How many divisions are there in Class 4?
344.1 Definition. Hazard Class 4 consists of three divisions: Division 4.1, Flammable Solids.