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The symbol within the pictogram is an exclamation mark. This symbol indicates that hazardous products with this pictogram can cause certain health effects for example,
Hazardous products with this pictogram can be safely worked with if proper storage and handling practices are followed.
This pictogram is used by several hazard classes within the health hazard group. Generally speaking, this pictogram is assigned to the least severe categories within a hazard class. The exception is Skin sensitization where the exclamation mark pictogram is assigned to all categories within the hazard class.
The hazard classes and categories that are assigned this pictogram are:
Note: The exclamation mark is also used for products that are Hazardous to the ozone layer – Category 1. Classification and labelling of the environmental hazard group is not required for WHMIS 2015. However, suppliers may voluntarily choose to disclose these hazards on labels and Safety Data Sheets (SDSs).
This pictogram is used for a number of very different health hazards. The WHMIS 2015 signal words and hazard statements for the hazard classes and categories assigned this pictogram are:
|Hazard Class and Category||Signal Word||Hazard Statement|
|Acute toxicity (Oral) – Category 4||Warning||Harmful if swallowed|
|Acute toxicity (Dermal) – Category 4||Warning||Harmful in contact with skin|
|Acute toxicity (Inhalation) – Category 4||Warning||Harmful if inhaled|
|Skin irritation - Category 2||Warning||Causes skin irritation|
|Eye irritation - Category 2||Warning||Causes serious eye irritation|
|Eye irritation - Category 2A||Warning||Causes eye irritation|
|Skin sensitization - Category 1, Category 1A and Category 1B||Warning||May cause an allergic skin reaction|
|STOT – single - Category 3||Warning||May cause respiratory irritation, or may cause drowsiness or dizziness|
In addition to the specific hazards identified by the exclamation mark pictogram, it is important to remember that a product may have other hazards, for example: