Safe Flame Use A Bunsen burner allows you to control the flame by adjusting the collar that controls air flow. Keep the flame away from any combustible materials. Check the connection between the gas valve and the hose to ensure that it doesn't leak. Radioactive waste must be sealed and buried deep in the ground. First of all, pay attention to what you are doing and what you are working with.
Discard leftovers in the proper container. Using proper laboratory techniques will increase your level of safety in the lab. It is a good resource for general laboratory safety issues, and is appropriate for elementary school students grades K-6. Check all the wires, the outer metallic covering of the service panel and any other hanging wires with an electrical tester before proceeding with your work. Rules Specific For The Organic Chemistry Laboratories. A knob varies the output voltage between zero and 100% of its maximum value.
General Lab Safety Culturing microorganisms is a popular science project, but you should be aware that there are many potential hazards when working with microorganisms. If in doubt about electrical safety, see the laboratory instructor. Safety Attire and Equipment When working with chemicals, chemical safety goggles, gloves, and a lab coat should be the first pieces of equipment on your list. They are less robust to noise due to the lack of grounding on the probe test leads. Learn your and how to use it! Remember, every sink with a hose can act as an eyewash station. Alpha and beta emitters can be handled using thick gloves. The damp soil around the cable is a good conductor of electricity and ground faults are quite common in the case of underground cabling.
All materials, media, tubes, plates, loops, needles, pipettes, and other items used for culturing microorganisms should be sterilized by autoclaving. That could be an instructor or a guide. The following guidelines are here to help you. They have become very common in modern homes, especially damp areas like the bathroom and kitchen, as they help avoid electrical shock hazards. Keep the work area and workbench clear of items not used in the experiment. Proper Laboratory Technique Before starting any experiment, you should understand the entire procedure that you will be following. Electrical safety rules Like almost every other workplace, laboratories contain electronic equipment.
Treat any chemical burns as outlined in the Burns section above. An easy way to discharge low voltage capacitor is that after removal from the circuit is to put the tip of two insulated screw drivers on the capacitor terminals. Laboratories are dangerous and if safety precautions are not taken, there is a possibility of mishaps occurring. Avoid loose or frayed wires, cables, and connections. For labs exercises involving food or drinks, lab assistants and instructors will follow procedures that allow safe consumption. . In real life, you can hurt someone, cause a fire, or lose your lab privileges.
If medical aid is required, do not try to go by yourself. This is useful in applications requiring non-standard voltages or where the voltage must be varied. Cover any cuts on your hands with a bandage. Handle chemicals, reagents, and stains carefully and follow all warnings. Never try to repair an equipment problem on your own. This quiz will test your understanding of how to recognize risks associated with science experiments and how to draw up safety procedures to cover them. Advanced meters can measure power factor, reactive power, and apparent power.
Additional rules and precautions may apply to a particular laboratory. The grounded probe is usually rated to tolerate several hundred volts and measures voltage between the probe tip and its ground lead. Measure across the two output terminals by touching the red probe to the plus terminal and the black probe to the minus terminal. Chemical safety rules Since almost every lab uses chemicals of some sort, chemical safety rules are a must. Unless directed to do so, do not eat our specimens. If the eyewash hasn't been used in a while, the discoloration of the water is usually sufficient to inspire the use of safety glasses. High voltage equipment must be labeled: Danger, High Voltage.
Finally, the multimeter is a versatile handheld, or bench-top instrument, for measuring voltage, current, resistance, and other electrical quantities. As far as what those numbers mean, don't worry about that right now; you'll deal with that next term. If you are unclear about any point or have questions, get them answered before starting, even if it's a question about a step later on in the protocol. Circuit breakers and fuses are protection devices that automatically disconnect the live wire when a condition of short circuit or over current occurs. Always replace the stopper or lid of stock solutions or stains.
Students found in violation of this safety rule will be barred from particpating in future labs and could result in suspension. Always check that it is de-energized first by using a tester. No part of a live circuit should be touched by the bare hand. Smoking is prohibited in all University buildings. A student who has a compromised immune system or has had a recent extended illness should talk with his or her instructor before working in the microbiology laboratory.