First, water supply and drainage requirements: water supply should ensure the necessary water pressure, water quality and quantity to meet the requirements of normal operation of instruments and equipment. Indoor main valves should be located in a prominent position that is easy to operate. Sewerage shall be provided with acid and alkali corrosion resistant data, and ground leakage shall occur in the air.
Gas supply and power supply: Conditional laboratories can install pipeline gas. The power supply of laboratory is divided into lighting power supply and equipment power supply. Fluorescent lamps are preferred for lighting. In the power supply of the equipment, the 24-hour running appliances such as refrigerators are powered separately, and other electrical equipment are controlled by the main switch. Electrical heating equipment such as ovens and high-temperature furnaces should have special sockets, switches and fuses. Install emergency lights indoors and corridors for use during sudden power outages at night.
3. Ventilation equipment: Because toxic or flammable gases are often produced in laboratory work, laboratories should have good ventilation conditions. There are generally three types of ventilation equipment:
(1) Part of the exhaust hood: The common device is above the place where the harmful gas occurs in the large-scale instrument. In order to reduce indoor air pollution, a part of the exhaust hood is installed above the harmful gas produced in the teaching laboratory.
(2) Ventilator: This is a part of ventilation equipment commonly used in laboratory design. Can use fire and explosion-proof metal materials to manufacture ventilation cabinets, coated with anticorrosive paint, ventilation pipelines to be able to resist acid and alkali gas corrosion. The fan can be installed in the top room, and should be installed to reduce vibration and noise. The exhaust pipe should be higher than 2 m above the roof.
(3) Ventilation of the whole room: Exhaust fan or ventilation shaft is used, and the ventilation times are usually 5 times per hour.
4. Building Requirements: Laboratory buildings should be built with fire-resistant or non-extinguishable materials, and partitions and roofs should also be considered for fire protection performance. Windows should be dust-proof and indoor lighting should be good. The door should be open to the outside, and the large laboratory should have two exits to facilitate the evacuation of personnel in case of an unexpected attack.
5. Test bench: It is mainly composed of a table, a bracket under the table and a temporary storage cabinet. For convenient operation, a medicine rack can be set on the table, and a water tank can be installed at both ends of the table. Countertops are usually made of corrosion-resistant veneer physical and chemical board, corrosion-resistant solid core physical and chemical board, epoxy resin board or high temperature ceramic board. Ideal countertops should be flat, not fragile, acid and alkali resistance and solvent corrosion, heat resistance, not easy to break glassware, etc.
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