1.6.: A pictogram is not required for the following physical hazard classes and hazard categories:

Section 2.1: Explosives of Division 1.5
Section 2.1: Explosives of Division 1.6
Section 2.2: Flammable gases, hazard Category 2
Section 2.3: Aerosols, hazard Category 3
Section 2.8: Self-reactive substances and mixtures, Type G
Section 2.15: Organic peroxides, Type G