The contents of the laboratory equipment configuration mainly include the layout mode, structure size, table top selection, fume hood selection, laboratory cabinet selection, and safety equipment configuration of the experimental table.

　　Layout mode

　　The focus of the layout of the experimental platform is safety and convenience. There are the following commonly used modes:

　　(1) Island type. It is the most common mode. It is often used in large spaces and rectangular indoor forms. This mode is characterized by smooth flow of people;

　　 (2) Peninsula type. This is also a typical application method, this mode is suitable for long and narrow rooms;

　　(3) L type. L type is suitable for narrower rooms;

　　(4) U-shaped and flat-shaped (i.e. side test bench) layouts are also commonly used.

  structure size

　　The structure of laboratory equipment is divided into all-wood structure, steel-wood structure and all-steel structure. The laboratory can choose different types of test benches according to specific conditions. The size of laboratory equipment is directly related to the convenience and comfort of use. The height of the sitting workbench is usually between 750 and 850 mml. If the proportion of male experimenters is higher, 900mm height can be considered; the height of the standing workbench is between 850 and 920mm, and the height of the workbench in the high-temperature greenhouse is 450 ～600 mm; the length of the workbench should usually be considered as 1200 mm per person (minimum should not be less than 1000mm), and the organic chemistry laboratory bench should be considered longer, which can be 1400～1600 mm; the height of the reagent rack is 1200～1650 mm. The height of the cabinet can reach 1800-2000 mm; the depth of the working table is generally 750 mm, and the working table depth of the high-temperature greenhouse is generally required to be between 850 and 900 mm.

　　 laboratory countertop

　　 Currently used more countertop materials are the following:

　　(1) Epoxy resin: It is mainly reinforced epoxy resin with the same internal and external materials. It can be repaired and reduced when damaged. It is acid and alkali resistant, impact resistant, and high temperature resistant (about 800°C). The cost is relatively high.

　　(2) Corrosion-resistant hardened board: It is made of high-quality multi-jammed paper, soaked in a special phenol liquid and then shaped by high-pressure thermosetting effect, and has a special surface corrosion-resistant treatment. It has acid and alkali resistance, impact resistance, heat resistance, economical and durable.

　　(3) Trespa: 70% wood fiber, 30% melamine resin, double electron beam scanning technology is used to attach melamine to the surface layer. After high temperature and high pressure molding, the resistance to high temperature and corrosion is average.

(4) Corrosion-resistant physical and chemical veneer: It is made of kraft paper impregnated with special phenolic resin, white and special surface paper processed by high temperature and high pressure. It has the characteristics of acid and alkali resistance, impact resistance and heat resistance, but it must be used with the substrate .

　　Laboratory Fume Hood

　　 Fume hoods are the most commonly used local exhaust equipment in the laboratory. There are many types. Due to their different structures and different operating conditions, their exhaust effects are also different. The performance of the fume hood depends mainly on the speed of air movement through the fume hood.

　　Experimental cabinet

　　Experimental cabinets include medicine cabinets, medicine cabinets, dangerous goods, glassware drying and storage cabinets, clean cabinets, and biological safety cabinets.

　　(1) Sample cabinet

The sample cabinets used to place various experimental samples should have partitions and labels that can be used to store samples and find samples. Some samples need to be stored in a desiccator according to the physical properties and chemical stability of the samples. Therefore, the compartments are large and small to facilitate storage of different samples.

　　(2) Medicine cabinet

　　 Mainly store solid chemical reagents and standard solutions. The two must be placed separately and cannot be mixed together. Chemical reagents should be placed in categories for easy searching. At the same time, for safety, the medicine cabinet should be equipped with glass doors and windows, and the cabinet should also have a certain load-bearing capacity and corrosion resistance.

　　(3) Dangerous goods storage cabinet

　　 is suitable for simple storage and short-term storage of dangerous goods. It is made of stainless steel or made of refractory bricks.

　　(4) Glassware drying and storage cabinet

　　The cleaned off-get off work utensils are stored on the bracket, and the bracket is fixed to the cabinet with a guide rail, which makes the glassware easy to access and easy to clean and dry.