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| IARC |
International Agency for Research on Cancer |
| IAQ |
Indoor Air Quality - a general term combining a multitude of issues
related to complaints by the occupants of buildings about illnesses or discomfort
resulting from being in the building. Typically, no single agent or easily recognized
group of agents is present in excess of a PEL or TLV. |
| ICS |
Incident Command System Procedure for emergency management used by fire
departments and other emergency response teams |
| IDLH |
Immediately Dangerous to Life and Health |
| IR |
Infra Red
Infrared spectrophotometer, operates in the region of EMR of lower energy than visible,
also known as heat waves, used primarily for identifying organic compounds |
| IH |
Industrial Hygiene |
| IIPP |
Injury and Illness Prevention Program (California) |
| ISO |
International Standards Organization |
J
| JCAHO |
Joint Commission on Accreditation of Healthcare Organizations
Accreditation by this body is necessary for US federal research grants, medicare
reimbursement, etc. |
L
| LC-50 |
The concentration in air that is lethal to 50% of the test animals in a
study. A convenient point of comparison between toxic materials with similar effects or
target organs. Variants sometimes used include LC-25 or LC-75, as well as LC-Low (lowest
detected lethal concentration) |
| LD-50 |
The experimental dose that is lethal to 50% of the test animals in a
study. A convenient point of comparison between toxic materials with similar effects or
target organs. |
| LEL |
Lower Explosive Limit - The minimum percent by volume of a gas or vapor,
which when mixed with air, will form a flammable mixture. |
| LEPC |
Local Emergency Planning Committee |
| LIMS |
Laboratory Information Management System |
| LUST |
Leaking underground storage tanks |
M
| MIS |
Management Information Systems, also Master of Industrial Safety, the
degree granted by the University of Minnesota (Duluth) to those who successfully complete
the Master's program |
| MS |
Mass Spectroscopy
Identifies compounds by breaking them up into all combinations of ions and measuring
mass-to-charge ratios at detector |
| MSDS |
Material Safety Data Sheet
Provided by chemical manufacturers, required by OSHA to be available to workers |
| MTB |
Materials Transportation bureau of the US Department of Transportation |
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