White Diamond Hazard Sign

Blue red yellow and white.

White diamond hazard sign.

The half white half red sign indicates that a material could spontaneously combust. This class includes two divisions. Standard system for the identification of the hazards of materials. For example in the reactivity area.

Each of health flammability and reactivity is rated on a scale from 0 no hazard to 4 severe hazard. This information is conveyed by use of symbols that represent the special. The blue red and yellow fields which represent health hazard flammability and reactivity respectively use a numbering scale ranging from 0 to 4. The nfpa diamond consists of four color coded fields.

Before 2002 the fire diamond and the color bar both had sections colored blue red white and yellow. The white diamond appearing at the bottom of the label conveys special hazard information. The hazardous materials diamond is a hazard communication system used to help emergency personnel quickly identify the risks posed by hazardous materials within a given worksite. A dangerous when wet sign which is blue indicates that a material could suddenly become flammable or emit toxic gas if exposed to water.

The red and white striped sign indicates a flammable solid. The numbers 0 to 4 are also used to rank reactivity hazards as follows. Oxidizer and organic peroxide. After april 2002 with the release of hmis iii yellow in the color bar which stood for reactivity was replaced by orange standing for physical hazard.

White specific hazard the numbers in the first three areas range from 0 to 4 with 0 signifying no hazard and 4 signifying a severe hazard. 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.