Canadian Centre for Occupational Health and Safety
Symbol of the Government of Canada

Understand and properly apply the information on MSDSs.

Understanding an MSDS (bundle of 50)
Format: Print
Language: English | French

Currently out of stock.

Product Description


An inexpensive and complete teaching tool for WHMIS and hazardous materials trainers.

This 4-page leaflet is designed to help employers, trainers and consultants involved in hazardous materials training. Understanding a MSDS is densely packed with explanations of each category of information found on an MSDS.


The document is organized under the headings of the 16-section international format MSDS, which is now used by more and more suppliers and employers and is acceptable under WHMIS and OSHA.

The document clarifies terminology such as TLVs, CAS numbers, LD50, synergism, and many other expressions commonly employed in chemical data sheets. It answers questions such as:

  • What constitutes short- or long-term exposure to a chemical?
  • What does the term "engineering controls" mean?
  • Why should one be aware of possible polymerization of a chemical?
  • What exactly is sensitization to a product?

Target Audience

This publication is ideal for :

  • WHMIS trainees
  • OSHA Hazard Communication trainees
  • people using MSDSs written in other formats

To obtain a free copy of this leaflet contact CCOHS Client Services.

To order a bundle of 50 leaflets use the order box above or contact CCOHS Client Services.


Note: CCOHS also provides access to an extensive MSDS database on a subscription basis.

Want more information?