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Moderate Health Hazard ( 2 ): These are chemicals that upon prolonged or continuous exposure could cause temporary incapacitation or possible injury unless action is taken and/or medical treatment is given.

The Hazardous Materials Identification System (HMIS) is a hazard rating system that uses color bar labels to identify and provide information about chemical hazards. It was developed by, and is proprietary to the National Paint Coatings Association (NPCA), now known as the American Coatings Association (ACA).

Hazardous Materials Identification System (HMIS) is a voluntary hazard rating scheme developed by American Coatings Association (ACA) to help employers comply with workplace labeling requirements of the U.S. Occupational Safety and Health Administration's (OSHA) revised Hazard Communication Standard (HCS).

A 0 4 numerical rating system is used with 4 representing a severe hazard and 0 representing a minimal hazard for health hazards and no hazard for flammability and reactivity. The rating for health is a relative index of toxicity and does not normally take into account how a chemical is being used or handled.

GHS describes the nature and severity of a chemical hazard by hazard class and hazard category: ... For example, hazard class flammable liquids can be divided into 4 categories among which flammable liquids category 1 represents the most severe hazard.

The familiar NFPA "hazard diamond" indicates health, flammability, and instability. ... Numbers in the three colored sections range from 0 (least severe hazard) to 4 (most severe hazard). The fourth (white) section is left blank and is used only to denote special fire fighting measures/hazards.

The blue, red, and yellow fields which represent health hazard, flammability, and reactivity, respectively use a numbering scale ranging from 0 to 4. A value of 0 means that the material poses essentially no hazard, whereas a rating of 4 indicates extreme danger. The white field is used to convey special hazards.

The category tells you about how hazardous the product is (that is, the severity of hazard). Category 1 is always the greatest level of hazard (that is, it is the most hazardous within that class). If Category 1 is further divided, Category 1A within the same hazard class is a greater hazard than category 1B.