Laboratories and subordinate rooms should be equipped with ventilation system, various power sockets and total power control switches according to their functional requirements, and equipped with shock maintainers. The experimental platform requests water and electricity to be in place. There are more than two 220V two-hole and three-hole sockets each. The model room, wall drawing room and samples in the laboratory subordinate rooms should be set up. Laboratory, maintenance room and laboratory office can be located in both instrument room and preparation room. It is important to note that laboratory office can not be located in chemical laboratory.
The experimental station
The experimental platform 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. The experimental table is 750 mm wide, 1500-3000mm long and 800-850 mm high, depending on the size of the room. 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.
Laboratory decoration must be ventilated throughout the room. Use exhaust fan or ventilation shaft, the number of ventilation is usually 5 times per hour.
Ventilator is a part of ventilation equipment commonly used in laboratory design. Installation of heating source, water source, lighting, etc. 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. It is better for one exhaust fan to connect with one ventilator, and it is easy for different rooms to share one ventilator and ventilation duct to suffer from interpenetrating pollution. The correct position of Bosch ventilation cabinet in the room is to place it in the center with less air activity, or to use slit ventilation cabinet with better effect. The height of the ventilation cabinet is 800 mm, the width is 750 mm, the net height of the cabinet is 1200-1500 mm, the height of the operation port is 800 mm, and the length of the cabinet is 1200-1800 mm. The opening height of window with wind speed of 0.3-0.5m/s at slit is 300-500 mm. The width of the duct behind the baffle is more than two times the width of the slot.
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. Bosch installed emergency lights indoors and on corridors for use during sudden power outages at night.
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