Lab Safety Flashcards / Myers 2 Hp Sewage Pumps

Work with hazardous chemicals at high or low pressures and high or low temperatures requires planning and special precautions. A number of other more specialized types of extinguishers are available for unusual fire hazard situations. Heat conduction via tubing and fittings can cause the relief device to reach high temperatures, depending on the apparatus design. For laboratory chemical hoods with airfoils, route the electrical cords under the bottom airfoil so that the sash can be closed completely. If designed into the fire alarm system, they may automatically sound an alarm and call the fire department, they may trigger an automatic extinguishing system, or they may only serve as a local alarm. Specific procedures for cleaning up spills vary depending on the location of the accident, the amount and physical properties of the spilled material, the degree and type of toxicity, and the training of the personnel involved. Tailor them to deal with the potential risk associated with the materials being used in the laboratory. Destruction or corruption of magnetic storage material. High-speed centrifuges and ultracentrifuges rely on rotors designed Specifically for the particular make and model. • Ascertain the safety of the situation. Safety first model 2 scenes in the lab answers. Commercial cylinders of liquefied gases are normally supplied only with a fusible-plug type of relief device, as permitted by DOT regulations. Because it may catch on fireWhy should you never leave anything visibly reacting unattended?

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To do this, review the following precautions and make the necessary adjustments prior to working in the laboratory: • Insulate all electrical equipment properly. Model 2 scenes in the lab answer. Cold traps under continuous use, such as those used to protect inert atmosphere dryboxes, should be electrically cooled, and their temperature should be monitored with low-temperature probes. Glass equipment, such as rotameters and liquid-level gauges, incorporated in metallic pressure systems should be installed with shutoff valves at both ends to control the discharge of liquid or gaseous materials in. OSHA regulations require that a worker be medically certified before beginning work in an area where a respirator must be worn [OSHA Respiratory Protection Standard, 29 CFR § 1910.

• Replace gloves periodically, depending on the frequency of use. Attention must be paid to both the mechanical and the electrical hazards inherent in using these devices. Laboratory hot plates are often used when solutions are to be heated to 100 °C or higher and the inherently safer steam baths cannot be used as the source of heat.

• If a chemical has splashed into the eye, immediately wash the eyeball and the inner surface of the eyelid with water for 15 minutes. Some types of extinguishers must be weighed annually, and periodic hydrostatic testing may be required. Make sure the monitor is properly rated for the intended purpose as some detectors are subject to interference by other gases. Untrained personnel should not attempt to use one. Look for signs of deterioration or wear of rubber parts, harness, and hardware and make certain that the apparatus is clean and free of visible contamination. The user must always be alert to the on/off status of the X-ray beam, keep aware of the location of the beam, and know how to work safely around the beam when aligning it in preparation for conducting an experiment. Use appropriate gloves and a face shield to avoid contact with the skin when using cold baths. Model 2 scenes in the lab answers. • Do not use harsh detergents to clean the rotors, especially aluminum rotors. Any laboratory operation that exposes trained laboratory personnel to a significant noise source of 85 decibels or greater for an 8-hour average duration should have a hearing conservation program to protect from excessive exposure. Each regulator is supplied with a specific CGA standard inlet connection to fit the outlet connection on the cylinder valve for the particular gas. Caps provide a vapor-tight seal to prevent a spill if the container is tipped over. The best containers for samples that are to be stored for longer periods of time are sealed nitrogen-filled glass ampoules. Always transport them on approved wheeled cylinder carts with retaining straps or chains. You might get burnt when you reach over itWhy should you never leave a lit burner unattended?

• Wear a double set of gloves when a single glove material does not provide adequate protection for all the hazards encountered in a given operation. Bob should notify teacher that glass was broken. In such a case, shut off the power to the equipment immediately at a main switch or circuit breaker and unplug the apparatus using insulated rubber gloves. Poor annealing after glassblowing can leave severe strains. 1 thing)a mouth suctionWhere should you hold the containers when transferring reagents from one container to another?

Cold rooms pose a particular risk in this respect because the atmosphere is frequently at a high relative humidity, and the potential for water condensation is significant. Post numbers to call in emergencies clearly at all telephones in hazard areas. Never tamper with or adapt regulators for use with gases for which they are not designed. The equipment is government regulated, and usually registration and licensing are required. Failure of the rotors may present a number of hazards: violent movement of the unit itself may cause injury or damage to equipment, electrical lines, gas lines, etc. Vent the output of each pump to a proper air exhaust system. The weight of the item to be lifted is a factor, but it is only one of several. Fitting of this type must be installed correctly. 4) present much less of a fire risk compared with thermal distillation, because they do not employ heating devices or reactive metals. Accuracies vary from ±2% for less expensive pressure gauges to ±0. Appropriate precautions using the proper shielding must be taken for condensing materials and sealing tubes. When operating or servicing electrical equipment, be sure to follow basic safety precautions as summarized below.

Thus, using a variable autotransformer that controls voltage and not frequency could cause the motor to overheat and presents a fire hazard. ASME) Boiler and Pressure Vessel Code (ASME, 1992) is mandatory. The four types of most commonly used extinguishers are listed below, classified by the type of fire for which they are suitable. Facial hair, do not use respirators requiring a face-to-face piece seal. In good practice a stirring impeller is attached to the shaft of the stirring motor with lightweight rubber tubing. Protection from heat, moisture, cold, and radiation may be required in special situations. In the case of a slip or a break, the resulting motion should not be in the direction of the person. Scissors in socket, makeup, chips. Do not allow material to accumulate at the bottom of the still; quench the still at the end of every procedure and clean thoroughly. For these reasons, heat guns almost always pose a serious spark hazard (see Chapter 6, section 6. Use metal Dewar flasks whenever there is a possibility of breakage.

• Do not reenergize a circuit breaker until sure that the cause of the short circuit has been corrected. A fire or explosion may occur if the temperature rather than the stirrer speed is increased inadvertently. Separate cylinders containing flammable gases from cylinders of oxidizing gases by at least 20 ft or by a 5-ft-high fire-resistant partition with a minimum 30-minute fire rating. Good practice is to cover the vessel or fitting being opened with a cloth or paper towel to contain any spray should the contents be unknowingly pressurized. To flammable liquids or vapors.

1 Pressure-Relief Devices. If the back of the vacuum setup faces the open laboratory, protect it with panels of suitably heavy transparent plastic to prevent injury to nearby personnel from flying glass in case of implosion. This procedure is essential when the pump is being used to evacuate a system containing a volatile toxic or corrosive substance. Bubblers of any type (e. g., mercury, oil) are not suitable for use as pressure regulators and should not be used. • Wear insulating rubber gloves when working with electrical equipment. Wear substantial shoes in areas where hazardous chemicals are in use or mechanical work is being done.

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Flojet Bottled Water System BW-4000A for home and commercial appliances is Eco-Friendly and up to up to 25% more energy efficient than previous one. Stainless steel design and self-lubricating impellers offer the best service for extreme conditions. Replaced with new system when we drilled new well. Myers 1 2 hp submersible well pumping. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. You must pay all labor and shipping charges associated with this warranty and must request warranty. This general service pump can be utilized in a wide variety of applications. 69 PSI (model HJ75) MAXIMUM … 500 kva to amps Product listings for Myers Repair Kits.

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