Physical hazards are based on the physical or chemical properties of the product. Examples of physical hazards include substances that are flammable or corrosive to metal.
Health hazards are based on the ability of the product to cause a negative health effect on humans. Examples of health effects include eye irritation, respiratory issues, or substances that are carcinogenic.
There are various hazards, and WHMIS 2015 has updated and expanded on hazard classifications. Most classifications in WHMIS 2015 are common in the Globally harmonized system; however, some classes are specific to WHMIS 2015.
What are Safety Data Sheets (SDS)
Safety Data Sheets are summary documents that provide information about the hazards of a product, and advise safety precautions. SDSS are generally written by the supplier or manufacturer of the product.
Learning to read a safety data sheet
Safety data sheets have more information about the product than the product label. While the label will have icons and warnings, the safety data sheet will detail the dangers of the hazardous material.