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Laboratory construction guidelines: the choice of ark of stage of experiment

A) structure
Experiment with Taiwan ark usually has the following four forms:
Steel structure forms: (1) the structure is rarely used in the past, now. Its advantage is beautiful beautiful, flexible layout, structure and changeful, functional; Drawback is that the price is higher, the surface coating damage after vulnerable to acid, alkali corrosion, so should take care all the more when production, installation and use.
(2) steel structure: this is now using common cabinet form. It was similar with the advantages of steel structure, and low price, good acid and alkali.
(3) wooden form: the wooden cabinet is made of wood, now in addition to the construction unit of a few financial difficulties in remote areas, have very little in this form. Today's ark of wooden table based on artificial density board base material, surface or attached with a chemical fire prevention board factory production. The so-called physical and chemical plate, it is appeared in recent years has stronger resistance to acid and alkali of a kind of artificial synthetic board. This kind of wood is the most commonly used form, it also has many of the advantages of steel structure or composite structure, and more to improve resistance to acid and alkali, the price is cheaper, but from the point of the overall effect, class is relatively worse than the latter.
(4) reinforced concrete structure forms: this structure is used a lot in the past, is now rarely used. Its defect is big weight, functional difference, decorate is not flexible, ugly appearance, etc.
(2) the scale of the test bench
Test bench there are two basic forms, namely the side table (also called a single test bench) and CCTV (also known as double test bench, including peninsula island type test bench and test bench). They are made of single section test bench together.
The length of the 1.
Usually, in addition to the special requirements, the length of the single section test bench be determined by the plate shape size. Set the total length, consideration should be given to the laboratory needs to place freezer, incubator, gas cabinets items such as the specific circumstances, according to the requirement of each laboratory.
Width of 2.
General experimental side table width to 750 mm, the width of the test bench is 1500 mm, have special requirements shall be considered. So the scale of the general good, can meet the requirements of general and special, chemical experiments, and can meet the requirements of general instrument operation.
Height of 3.
In our country, the height of the test bench is 820 mm, generally is the height of the Chinese, also need to point out that predominantly placed instrument test bench, because the instrument itself has a certain height, so it can decrease the height, to facilitate operation. The lab building, for example, how to decorate on the north side of the instrument room is given priority to, so can reduce the mesa height, unified not cause uneven situation.
(3) the composition of the test bench
Experimental platform is mainly composed of mesa, the audience cabinet put oneself in another's position, power socket, water groove, water mouth, some according to need, in setting reagent frame table experiment items.
1. The channel power socket and the pipe
Ago, laboratory outlet is usually on the layout of the wall on the top of the table, set aside in the building construction. General electrical outlet of modern laboratory mainly adopts mesa to decorate, reach place USES metope is decorated in mesa, therefore the experiment side table and on the back of the test bench in the middle of the pipe laying shall be maintained of space, or on the table Settings through long line.
2. The reagent rack
Reagent shoulds not be too wide, two bottles of 500 mm to coordinate reagent bottle advisable, width is 200-300 - mm, usually relies on a wall YiQu reagent frame width 200 mm. Reagent frame height with 2-3 layers advisable, usually tall generally take 300 mm. The central experimental units of reagent blank, lower height is 350-400 - mm, so that both sides experiment operating personnel transfer items; Place reagent bottle at the top, the edge of the screen should be a small fence, in case of reagent bottle was pushed across the personnel. Reagent rack can be installed lighting for the researchers to use.
3. The sink
Experiment flume commonly in experimental platform, can use the audience groove, also may use groove on stage. For test bench, the location of the tank should be according to the experiments need to be sure, without special requirement, usually at one end or both ends; For the central experimental units, usually in the end, in order to make the test bench is more orderly, with water tank can be set in the end of the cabinet. Tank should be resistant to acid and alkali and organic solvents, used ceramic products, now mostly in polymer corrosion resistant materials such as PP molding sink at a time. Above the sink vessel can be set according to the need to drop.
4. Water mouth
In order to avoid secondary pollution, easy to aseptic operation, microbiology laboratory water to wash your hands mouth appropriate USES of touch.
(4) other requirements
1. The material
For steel structure and wood structure forms of ark of experimental units, the wooden part of the base material should comply with the requirements of environmental protection, surface material should have corrosion resistance, easy to clean, and the characteristics of the fire.
More use acid-base operation in the laboratory, because has a tendency to acid and alkali, dripped mesa in the experimental process, therefore, appropriate USES solid chemical experiment mesa that physical and chemical plate thickness up to 1 cm; More use of instrument operation in the laboratory, the corrosive reagent is rarely used, so the test bench in the face of the requirements of corrosion resistance is relatively low, considering from saving investment, can use a face physical and chemical plate, namely, the physical and chemical plate thickness is about 1 mm.
The bench usually adopt relatively heavy marble or granite, in order to improve the seismic performance.
2. Take
The shake handshandle of ark of stage of experiment with appropriate assumes the circular arc form, in order to prevent the experimenter bruised and hook the overalls.
3. The guide rail
Experiment with ark of a drawer guide appropriate USES 3 section, to ensure that the drawer can be fully opened to mesa vertical, not impede experiment supplies.
(5) lighting device
In order to keep the records on the results of experimental phenomena observed, instruments used correctly, and to protect, to ensure the enough illuminance.

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