GHS hazard pictograms
A Globally Harmonized System of Classification and Labeling of Chemicals (GHS) hazard pictogram means a graphical composition that may include a symbol plus other graphic elements, such as a border, background pattern or color that is intended to convey specific information.
GHS pictograms for sectors other than transport are assigned a unique alphanumerical code (there are a total of nine from GHS01 to GHS09). The pictogram code is intended to be used for reference purposes. It is not part of the pictogram and should not appear on labels or in section 2 of the safety data sheet (SDS). The table below lists the correspondence among GHS pictograms, codes, and symbols.
About GHS
The GHS is a technical guidance published in 2003 by the United Nations (UN), also referred to as the UN GHS/purple book, which is used to address the classification of chemicals by types of hazard and harmonized hazard communication elements, including labels and safety data sheets. The lastest version is the tenth revised edition of UN GHS. It aims to provide a basis for harmonization of rules and regulations on chemicals at national, regional, and global level.
Among the above symbols, with the exception of the new symbol which will be used for certain health hazards and the exclamation mark, the remaining seven symbols are part of the standard symbol set used in the UN Model Regulations. In addition to these seven symbols, the UN Model Regulations also include transport pictograms that are not under GHS pictograms. Pictograms prescribed by the GHS but not the UN Model Regulations, should have a black symbol on a white background with a red frame sufficiently wide to be clearly visible.
However, when such a pictogram appears on a label for a package that will not be exported, the competent authority can choose to give suppliers and employers discretion to use a black border. For example, the latest official GB 30000.1-2024 in China provides relevant exemptions: "For domestic use, the border can be black.”
Related Links
China Officially Updates GHS General Rules (GB 30000.1-2024) in Line with GHS 8
It should be noted that, where a UN Model Regulations pictogram appears on a label, a GHS pictogram for the same hazard should not appear. The GHS pictograms not required for the transport of dangerous goods should not be displayed on freight containers, road vehicles, or railway wagons/tanks.
For more details on the transport pictograms in the UN Model Regulations, please follow our Chemradar.
Understanding the relationship between GHS hazard pictograms and hazard statements is equally important as they are components of the label elements. The following table lists the correspondence between H codes and GHS pictograms:
Physical hazards
Health hazards
Environmental hazards
The hazard categories listed in the above table are under the latest 10th revised edition of the UN GHS. To specifically comply with the GHS regulations of a certain country, it is necessary to correspond according to the requirements of their national regulations.
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Further Information
Singapore to Implement UN GHS Rev.7
Japan Updates GHS Classifications for 160 Chemicals
U.S. OSHA Amends Hazard Communication Standard to Align with GHS Rev. 7
China Taiwan OSHA Revising GHS Classification Standards and Introducing 8th Revision of GHS