WHMIS: What You Need to Know
11. The Material Safety Data Sheets (MSDSs)The material safety data sheet or "MSDS" is an important source of information for the worker at the worksite. It is one of the three basic elements of the WHMIS right-to-know-system.
The MSDS includes the following: relevant technical information on the substance; a list of its hazardous ingredients, (if it's a mixture); chemical hazard data, control measures such as proper engineering controls and personal protective equipment; instructions in accident prevention while using the substance, specific handling, storage and disposal procedures; and emergency procedures to follow in the event of an accident.
The information provided is expected to be comprehensive and must include what can reasonably be expected to be known about the material and the hazards it may present. MSDS's from different companies may not look the same but they should contain the same basic information.
The following pages include the various sections of a MSDS for acetone as well as explanantion of the corresponding relevant technical information. The order in which sections appear on a MSDS may vary from one supplier to another, but the content of each section is specified by the legislation.
Each section of a MSDS must be filled in, even if it only states: "not determined" or "not applicable".
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