High hazard Level 3 contents include materials that readily support combustion or present a physical hazard including, but not limited to, the following: (1) Level 2 and Level 3 aerosols (2) Class I, Class II, or Class III-A flammable or combustible liquids that are used or stored in normally closed containers or systems at gauge pressures of less than 15 psi (103. 4 kPa) (3) Classification 1. 4G consumer fireworks (4) Flammable solids, other than dusts classified as high hazard Level 2, stored, used, or generated in a manner creating a high fire hazard (5) Class II and Class III organic peroxides (6) Class 2 solid or liquid oxidizers (7) Class 3 solid or liquid oxidizers that are used or stored in normally closed containers or systems at gauge pressures of less than 15 psi (103. 4 kPa) (8) Oxidizing gases and oxidizing cryogenic liquids (9) Class 2 unstable (reactive) materials (10) Class 2 water-reactive materials.