A B C D E F G H I
J K L M N O P Q
R S T U V W X Y Z

Carcinogen: Regulated by OSHA as a carcinogen, listed under the category “known to be carcinogens” in the Annual Report on Carcinogens by the National Toxicology Program (NTP), listed under Group 1 (“carcinogenic to humans”) in the latest editions by the International Agency for Research on Cancer Monographs (IARC), or listed in either Group 2A or Group 2B by the IARC or under the category “reasonably anticipated to be carcinogens” by the NTP.

CAS: Acronym for “chemical abstract services.” The CAS number is a means by which chemists categorize chemicals.  Each chemical has a unique CAS number by which may be used to look up chemicals and their properties.

Chemical: Strictly speaking a chemical is anything that has a mass and occupies a volume.  Typically, when we speak of a chemical, we mean any substance which is used for a particular purpose.

Chemical Hazard: Any known hazard of a reagent that could cause harm to an individuals health, including but not limited to respiratory ailments, burn hazards, or damage to mucous membranes.

Chemical Hygiene Plan: The plan which is approved by the faculty, staff and administration of the DSU CNS on appropriate procedures and policies concerned with safety in laboratories.

Chemical Hygiene Officer (CHO): This individual is directly responsible for safety and his or her area.  Any concerns of safety should be directed to this immediate person.   This person  is appointed to be primarily responsible for maintaining a safe work environment.

Combustible Liquid: Any liquid having a flashpoint at or above 100^oF (37.8^oC) but below 200^oF (93.3^oC).

Compressed Gas: A gas or mixture of gases having, in a container, pressure exceeding 40 psi at 70^oF (21.1^oC) or exceeding 104 psi at 130^oF (54.4^oF).

Corrosive: Any chemical that causes erosion of skin and/or matter such as containers or surfaces.