Workplace Hazardous Materials Information System
The Workplace Hazardous Materials Information System (WHMIS; French Système d'information sur les matières dangereuses utilisées au travail SIMDUT ) is a system for the classification of dangerous goods since October 31, 1988 and is administered by the Canadian Ministry of Health . The core elements of the system are warning labeling of containers ("controlled products"), the provision of material safety data sheets (MSDSs ) and training programs.
The Canadian reference manual for the requirements of the Dangerous Goods Act (HPA) and the Controlled Product Regulation (CPR) provides, according to federal legislation, that Canadian suppliers and Canadian importers must classify dangerous goods transports in the respective required hazard class. In addition, the WHMIS stipulates that safety data sheets must be completed in accordance with the Hazard Communication Standard.
- Dangerous goods classification
Class A
compressed gas
Class B
Extremely flammable and combustible materials
Class C
oxidizing materials
Class D-1
Toxic and Infectious Material (highlighting immediate and serious effects)
Class D-2
Toxic and infectious materials (causes other toxic effects)
Class D-3
Toxic and infectious materials (infectious biological dangerous goods)
Class E
corrosive materials
Class F
Hazardously reactive materials
