40. If you do not understand how Always turn the burner or hot 48. When bending glass, allow to use a piece of equipment, ask plate off when not in use. time for the glass to cool before the instructor for help. further handling. Hot and cold 44. You will be instructed in the glass have the same visual 41. Do not immerse hot proper method of heating and appearance. Determine if an glassware in cold water; it may boiling liquids in test tubes. Do object is hot by bringing the back shatter. not point the open end of a test of your hand close to it prior to tube being heated at yourself or grasping it. HEATING SUBSTANCES anyone else. QUESTIONS 42. Exercise extreme caution 45. Heated metals and glass when a gas burner. Take remain very hot for a long time. 49. Do you wear contact lenses? care that hair, clothing and They should be set aside to cool hands are a safe distance from ___ YES ____ NO and picked up with caution. Use the flame at all times. Do not put tongs or heat-protective gloves if 57. Are you color blind? any substance into the flame necessary. unless specifically instructed to ___YES ____ NO do so. Never reach over an 46. Never look into a container exposed flame. Light gas (or that is being heated. 58. Do you have allergies? alcohol) burners only as 47. Do not place hot apparatus ___YES ____NO instructed by the teacher. directly on the laboratory desk. If so, list specific allergies 43. Never leave a lit burner Always use an insulating pad. __________________________ unattended. Never leave Allow plenty of time for hot anything that is being heated or apparatus to cool before is visibly reacting unattended. touching it.
40. If you do not understand how to use a piece of equipment, ask the instructor for help. 41. Do not immerse hot glassware in cold water; it may shatter. HEATING SUBSTANCES 42. Exercise extreme caution when a gas burner. Take care that hair, clothing and hands are a safe distance from the flame at all times. Do not put any substance into the flame unless specifically instructed to do so. Never reach over an exposed flame. Light gas (or alcohol) burners only as instructed by the teacher. 43. Never leave a lit burner unattended. Never leave anything that is being heated or is visibly reacting unattended. Always turn the burner or hot plate off when not in use. 44. You will be instructed in the proper method of heating and boiling liquids in test tubes. Do not point the open end of a test tube being heated at yourself or anyone else. 45. Heated metals and glass remain very hot for a long time. They should be set aside to cool and picked up with caution. Use tongs or heat-protective gloves if necessary. 46. Never look into a container that is being heated. 47. Do not place hot apparatus directly on the laboratory desk. Always use an insulating pad. Allow plenty of time for hot apparatus to cool before touching it. 48. When bending glass, allow time for the glass to cool before further handling. Hot and cold glass have the same visual appearance. Determine if an object is hot by bringing the back of your hand close to it prior to grasping it. QUESTIONS 49. Do you wear contact lenses? ___ YES ____ NO 57. Are you color blind? ___YES ____ NO 58. Do you have allergies? ___YES ____NO If so, list specific allergies __________________________
earthscience_safetycontract.docx