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Hazard

The inherent adverse effect of a substance.

Hazard Communication Standard

An OSHA standard established in 1983 requiring all employers to inform employees of the hazard of chemicals in the workplace and the steps necessary to avoid harm. This standard, defined in the Code of Federal Regulations (29CFR Part 1910.1200), requires that

Health Hazard

Health hazard means a chemical for which there is statistically significant evidence based on at least one study conducted in accordance with established scientific principles that acute or chronic health effects may occur in persons exposed. The term "health hazard" includes chemicals which are carcinogens, toxic or highly toxic agents, reproductive toxins, irritants, corrosives, sensitizers, hepatotoxins, nephrotoxins, neurotoxins, agents which act on the hematopoietic system, and agents which damage the lungs, skin, eyes, or mucous membranes.

Hepatitis

Inflammation of the liver.

Hepatotoxicity

Toxicity of the liver and associated bile duct and gall bladder.

Hepatotoxin

A substance that is toxic to the liver.

HMIS

HMIS is the Hazardous Materials Identification System developed by the American Coatings Association and indicates the levels (“1” to “4”) of Health Hazard, Flammability Hazard and Physical Hazard associated with a specific product.

Hypersensitivity

A state of altered immune reactivity in which the body reacts with an exaggerated response to a foreign agent.

Hypoxia

A partial reduction in the oxygen concentration supplied to cells or tissues.

Hazard Symbols

Hazard Symbols are used to classify dangerous substances.

Hazard Codes

Hazard Codes and their associated descriptions are an essential part of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). There are 4 categories of Hazard Codes:

  • Physical Hazard Codes (H200 series)
  • Health Hazard Codes (H300 series)
  • Environmental Hazard Codes (H400 series)
  • Supplementary Hazard Codes (EUH series)

Hazard Codes may be found in the "Advanced" version of Chemical Composition / Ingredients tables.