SAFETY MEASURES IN THE LABORATORY....pptx

lab

1. SAFETY MEASURES IN THE LABORATORY

2. When working in the laboratory, it is very important to follow safety procedures to avoid any incidents. Here are some laboratory safety rules: Eye and Face Safety Always wear safety laboratory googles. Always point a bottle or test tube away from you and others when it is heated. Glassware Safety Never use broken glassware. When heating any glassware, be sure that it is thoroughly dry. In picking up hot glassware, always use heat-resistant gloves. Always clean glassware thoroughly after using it.

3. Sharp Instrument Safety Always handle sharp instruments with extreme care. Always cut material away from you. Avoid using double-edged razors. Inform your teacher immediately if you accidentally cut yourself while doing an experiment. Electrical Safety Never touch an electrical outlet or appliance when your hands are wet. Do not overload the socket by plugging in too many different appliances into one socket. Do not use long extension cords to plug in an electrical devise.

4. Chemical Safety Do not mix chemicals unless told to do so. Do not taste or touch any chemical unless instructed. Do not smell any chemical directly from its container. Close all lids when chemicals are not in use. Always rinse any chemical off your skin and laboratory gown with water. Heat or Fire Safety Wear safety googles whenever you use any source of fire. Never heat any chemicals unless told to do so. Do not heat-seal containers. Never reach across a flame. Use clamps, tongs, or heat-resistant gloves to handle hot objects.

5. SAFETY SIGNS Safety signs are of great importance in all places, particularly in the laboratory to provide protection and caution and to avoid any unforeseen incident. The handling of different chemicals, acids, and other substances is to be done with great care as these have some inherent features that can be harmful to health.

6. SYMBOL MEANING DEFINITION POISONOUS Chemicals are fairly dangerous if ingested or inhaled. Many of these are dangerous even upon contact. FLAMMABLE OR EXTREMELY FLAMMABLE Chemicals are to be stored in a flame-resistant cupboard. Volatile solvents can be a particular problem as they are prone to spreading around from unsealed containers. CORROSIVE Avoid contact with the skin. Bear in mind that these (under some circumstances) can rust chemical cupboards.

7. OXIDIZING CHEMICAL Oxidizing chemicals are materials that spontaneously release oxygen at room temperature with slight heating or promote combustion. They are to be kept away from flammable chemicals at all costs. KEEP AWAY FROM FOODSTUFF Harmful materials are to be kept away from edible materials to avoid contamination. DANGEROUS WHEN WET Walk with caution. This area is slippery when wet. FLAMMABLE GAS OR LIQUID This safety symbol is used for the transport or storage of flammable gas or liquid.