Chemical Hygiene Plan Chemical Reaction A change in the arrangement of atoms or molecules to yield substances of different composition and properties. Chronic Exposure A series of exposures occurring over a longer period of time. Corrosive Any gas, liquid, or solid that causes destruction of human tissue or a liquid that has a severe corrosion rate on steel. Generally, a substance that has a very low or a very high pH. Cutaneous Pertain to or affecting the skin. The breakdown of a chemical or substance into different parts or simpler compounds.
Decomposition can occur due to heat, chemical reaction, decay, etc.
Dermal Pertaining to or affecting the skin. An inflammation of the skin. A designated area may be the entire laboratory, an area of a laboratory, or a device such as a laboratory hood. A designated area shall be placarded to reflect the designated hazard. The concentration of a substance and the time period during which the exposure occurs.