Final answer:
Pictograms and Signal Words are essential in communicating chemical hazards to workers.
Explanation:
In the context of chemical hazard classification, Pictograms are images used to immediately alert workers to the type of hazard represented by a specific chemical. These symbols are standardized under the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) and are depicted in red-bordered diamond shapes. Along with Signal Words like 'DANGER' or 'WARNING', these pictograms help communicate the severity of the hazards associated with a particular chemical.
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