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Terms for College & University Lab

Chemical laboratory safety has plenty of terminology to learn and know.

Educators should be familiar with the following:

Students should be able to define, explain, and understand the following terms and concepts at a basic level. These terms support understanding of the recommended Learning Objectives.

  • Acute toxicity
  • Asphyxiant
  • Autoignition temperature
  • Biological hazards (infectious agents, blood-borne pathogens)
  • Boiling liquid expanding vapor explosion (BLEVE)
  • Carcinogen
  • Chemical Abstracts Service (CAS)
  • Chronic toxicity
  • Compressed gas
  • Corrosive
  • Cryogen
  • Electrical hazard
  • Environmental Protection Agency (EPA)
  • Explosives
  • Fetotoxicant
  • Flammability
  • Flash point
  • Globally Harmonized System (GHS)
  • Halogen
  • Hazard
  • High- and low-pressure systems
  • Immediate danger to life or health (IDLH)
  • Incompatible chemicals
  • Lachrymator
  • Lethal concentration, 50% (LC50)
  • Lethal dose, 50% (LD50)
  • Long-term exposure limit (LTEL)
  • Mutagen
  • National Fire Protection Association (NFPA)
  • Organ toxicant
  • Occupational Safety and Health Administration (OSHA)
  • Occupational exposure limit (OEL)
  • Permissible exposure limit (PEL)
  • Peroxide
  • Personal protective equipment (PPE)
  • Pyrophoric
  • Radioactive and radiological hazards
  • RAMP system
  • Reactive/unstable chemicals
  • Risk
  • Runaway reaction
  • Safety Data Sheet (SDS)
  • Sensitizers (allergens)
  • Short-term exposure limit (STEL)
  • Sublimation
  • Teratogen
  • Threshold limit value (TLV)
  • Time-weighted average (TWA)
  • Toxicity
  • Ultraviolet radiation

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