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3 Food beverages chewing gum cosmetics and smoking are NEVER allowed in the lab4 NEVER taste chemicals or touch them with your bare hands Also keep your hands away from your face and mouth while working even if you are wearing gloves5 Use a sparkler to light a Bunsen burnerDo not use matches Be sure that all gas valves are turned off and that all hot plates are turned off and unplugged when you leave the lab6 Be careful with hot plates Bunsen burners and other heat sourcesKeep your body and clothing away from flames Do not touch a hot plate after it has just been turned off It is probably hotter than you think The same is true of glassware crucibles and other things after you remove them from a hot plate drying oven or the flame of a Bunsen burner7 Do not use electrical equipment with frayed or twisted cords or wires8 Do not let electrical cords dangle from work stations dangling cords can cause tripping or electrical shocksThe area under and around electrical equipment should be dry cords should not lie in puddles of spilled liquid8 For all chemicals take only what you needIf you happen to take too much DO NOT put it back in the bottle If somebody accidentally puts a chemical into the wrong bottle the next person to use it will have a contaminated sample9 Horseplay and fooling around in the lab are very dangerous
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