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Two sets of pictograms are included within the GHS: one for the labelling of containers and for workplace hazard warnings, and a second for use during the transport of dangerous goods. Either one or the other is chosen, depending on the target audience, but the two are not used together for the same hazard. [ 1 ]
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A chemical hazard symbol is a pictogram applied to containers and storage areas of dangerous chemical compounds to indicate the specific hazard, and thus the required precautions. There are several systems of labels, depending on the purpose, such as on the container for transportation, containers for end-use, or on a vehicle during transportation.
The pictogram for harmful substances of the Globally Harmonized System of Classification and Labelling of Chemicals.. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around ...
Class 2.3, Toxic Gases, bears a black skull and crossbones symbol on a white background. When anhydrous ammonia is transported, the container must display (in addition to the existing Class 2.3 placard and UN number) a special placard with the product name and the words "inhalation hazard" (French: dangereux par inhalation).
Pressurized container: may burst if heated H230: May react explosively even in the absence of air H231: May react explosively even in the absence of air at elevated pressure and/or temperature H232 May ignite spontaneously if exposed to air H240: Heating may cause an explosion H241: Heating may cause a fire or explosion H242: Heating may cause ...
ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .
The white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard. OX: Oxidizer, allows chemicals to burn without an air supply (e.g., potassium perchlorate, ammonium nitrate, hydrogen peroxide). W: Reacts with water in an unusual or dangerous manner (e.g., caesium, sodium, diborane ...