How many hazard groups are there in GHS? - Creative Safety Supply The hazards are identified using nine different pictograms, each of which are associated with a different type of risk. A chemical will be labeled with one or more of these pictograms to make it easy for those who work with them understand the risks. These nine pictograms make up the most recognized part of GHS, but there is more. In addition to the pictograms, GHS also breaks up the hazards into different groups that have things in common.