Toxic Materials

UNB Reference Number: 7825
Authorized by: J. M. Anderson, President,
Effective Date: December 1, 1978
Revised: September 2001
PDF version


To outline procedures relating to toxic materials.


All University personnel using toxic materials.


In general, a material is considered toxic if its release may be harmful to the environment or if it constitutes a danger to human health as a result of exposure by inhalation, skin contact, skin absorption or oral ingestion. Substances assessed to be toxic are specifically identified under the Canadian Environmental Protection Act (CEPA) as well as by Health Canada and are subject to controlled use, release and disposal.


  • In all areas where toxic material is in use, a written guideline shall be developed which addresses: personal hygiene; the use of personal protective equipment; engineering controls including fume hoods or biological safety cabinets; and appropriate disposal.
  • When toxic gases are in use, a written Code of Practice shall be developed for the use of air purifying respirators or self-contained breathing apparatus. Protective equipment shall be periodically checked and maintained in working order.
  • Special care shall be taken when handling liquids which generate toxic vapors. These liquids shall be stored in as small a container as is practicable and shall only be used in a fume hood, biological safety cabinet or enclosed glove box. Whenever possible these liquids shall be stored separate from work areas.
  • Toxic materials shall be stored separately from flammable liquids.
  • Containers shall be provided in laboratories for the collection of waste toxic materials.
  • W.H.M.I.S. labels shall be placed on containers of materials which are toxic. A "biohazard" label shall also be applied to the container where appropriate.
  • If contaminated, employees shall not remove their clothing where there is a possibility of increased exposure to the hazard.
  • Toxic materials shall not be transported on passenger elevators without adequate safeguards.
  • Toxic materials shall be disposed of by a N.B. Department of Environment approved method; or rendered harmless by chemical or heat treatment prior to release to the environment.
  • Refer further to Policy No. 7835 for approvals and procedures on the use of biohazardous materials, as regulated by Health Canada.