In the Globally Harmonized System of Classification (GHS) a GHS pictogram is defined as a graphic representation that contains a symbol, border, background and colour that is aims to convey specific information. While A GHS symbol is a graphical element that succinctly conveys information.
Pictograms containing symbol, background and border.
Example of only the GHS Symbol.
Under the GHS, a pictogram is necessary on both labels and MSDSs.
Labels: When chemicals fit under a certain criteria in the hazard classes identified by the GHS, there must be the corresponding pictogram on the label. The pictograms on a label must contain the corresponding black symbol, plain white background and a red border.
MSDS: Pictograms or Symbols may also be found on MSDSs.