Compressed gas: This class includes compressed gases, dissolved gases, and gases liquefied by compression or refrigeration. Compresses gas can be very dangerous if the container holding the gas breaks, which could cause and explosion and flying shrapnel. If is important to safely move the container and not to over fill the container. Some PPE that you could us would be safety glasses and gloves to protect you from shrapnel or a blast of high pressure gas. (A news story accident related to the material: http://scubascoop-kirkscubagear.blogspot.ca/2013/11/compressed-gas-tears-skin-penetrates.html)
Flammable and combustible material: This are materials that can catch on fire in the presence of a spark or open flame under normal working conditions. When using such materials don't have and open fires of near things that could cause a spark or static electricity. PPE like glasses gloves and and a flame retardant suit. (News story involving flammable material: http://www.thestar.com/news/crime/2012/06/11/sunrise_propane_trial_fatal_explosion_a_tragic_accident_defence_says_in_closing_
arguments.html)
Flammable and combustible material: This are materials that can catch on fire in the presence of a spark or open flame under normal working conditions. When using such materials don't have and open fires of near things that could cause a spark or static electricity. PPE like glasses gloves and and a flame retardant suit. (News story involving flammable material: http://www.thestar.com/news/crime/2012/06/11/sunrise_propane_trial_fatal_explosion_a_tragic_accident_defence_says_in_closing_
arguments.html)