Health Hazard Rating Chart

Ghs classification criteria are used to determine the nature and the relative severity of the hazard of a chemical substance or mixture in this article we have summarized ghs classification criteria in ghs rev.

Health hazard rating chart. Hazard category means the division of criteria within each hazard class e g acute toxicity and flammable liquids each include four hazard categories numbered from category 1 through category 4. The risk level ratings ranging from four highest risk to zero minimum risk are based upon protective equipment normally used by firefighters. Hmis health hazard rating chart chronic hazard chronic long term health effects may result repeated overexposure.

Little pro on 2016 05 09 views. 0 minimal hazard no significant risk to health. The ratings range from 0 to 4.

These are chemicals that may cause life threatening permanent or major injury from a single exposure or repeated exposures. A rating of 4 is the highest. 6 for all 29 hazard classes including 17 physical hazards 10 health hazards and 2.

Ghs classification criteria in a single page. They list the chemical name the cas chemical abstracts service number and ratings for health flammability instability and specific hazard symbols. The category is usually a number 1 4 or letter a b c although there are few that are indicated with words.

The hcs defines hazard class as the nature of a physical or health hazard e g flammable solid carcinogen and acute toxicity. Irreversible injury may result from brief contact. The national fire protection association nfpa has developed a system for indicating the health flammability reactivity and special hazards for many common chemicals through use of the nfpa 704 diamond.

Labels rate hazards in the health flammability and reactivity sections on a scale from 0 to 4 0 being the least hazardous and 4 being very hazardous. 3 serious hazard major injury likely unless prompt action is taken and medical treatment is given. Severe health hazard 3.