Laboratory Safety Rules.

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Presentation transcript:

Laboratory Safety Rules

Science is a hands-on laboratory class. Safety in the science classroom is the first priority for students, teachers, and parents. To ensure a safe science classroom, a list of rules has been developed and provided to you in this student safety contract. These rules must be followed at all times.

When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you are instructed to do so. Safety goggles and aprons must be worn whenever you work in lab. Gloves should be worn whenever you use chemicals that cause skin irritations.

Have an emergency plan. Posting safety rules on the wall is necessary. But not enough, they should be instructed oftenly. Do not eat food, drink beverages, or chew gum in the laboratory.

Clothing Dress properly during a laboratory activity. Long hair and jewelries are a hazard in the laboratory. Long hair must be tied back. Shoes must completely cover the foot. No sandals are allowed. Contact lenses should be taken off.

Accidents If a chemical should splash in your eye(s), immediately flush with running water from the eyewash station for at least 20 minutes. Notify the instructor immediately. If you spill acid or any other corrosive chemical on your skin or clothes, immediately wash area with large amounts of water. After this get the teacher’s attention.

Never leave a lit burner unattended. Should the Bunsen Burner go out, immediately turn off the gas at the outlet valve. Never leave a lit burner unattended. Acids must be handled with extreme care. ALWAYS ADD ACID SLOWLY TO WATER, with slow stirring and swirling, being careful of the heat produced, particularly with sulfuric acid. flammable

All chemicals in the laboratory are to be considered dangerous. Do not touch, taste, or smell any chemical unless specifically instructed to do so. toxic

Never return unused chemicals to their original containers. Dispose of all chemical waste properly. (Never mix chemicals in sink drains. Sinks are to be used only for water and those solutions. Solid chemicals, metals, and all other insoluble materials are to be disposed of in the proper waste containers, not in the sink.)

Be familiar with your lab assignment before you come to lab. At the end of the laboratory session see that: a) main gas outlet valve is shut off b) the water is turned off c) desk top, floor area, and sink are clean d) all equipment is cool, clean, and arranged.