There are many precision instruments and chemical reagents in the laboratory, which have strict requirements on the structure of the house, indoor environment and facilities, so laboratory design work must be done well. Today’s article will introduce you to the precautions for the design of precision instrument rooms in laboratory design.

The laboratory’s testing rooms are divided into three categories. In addition to the precision instrument room, there are also chemical analysis rooms and auxiliary rooms. The precision instrument room is equipped with many precision instruments, so the precision instrument room should be kept away from dust, smoke, noise and vibration sources when designing the laboratory. Specifically, there are the following 5 considerations:

Item 1: The design of the precision instrument room must be 8 "proof", which are fireproof, shockproof, moistureproof, dustproof, antimagnetic, noiseproof, anticorrosive, and harmful gas. In addition, the indoor temperature should be controlled between 15°C and 30°C. If possible, the temperature should be controlled between 18°C and 25°C. The indoor humidity should be controlled between 60% and 70%.

Item 2: The floor of the precision instrument room should be a terrazzo floor or an anti-static floor. Carpets are not recommended because they are not only easy to accumulate dust, but also easy to generate static electricity. The supply voltage should be stable, and the voltage is usually allowed to have a ±10% fluctuation. If necessary, ancillary equipment such as stabilized power supply can be equipped. In addition, in order to ensure uninterrupted power supply, dual power supplies must be used, and a dedicated ground wire must be provided, and the ground electrode resistance must be less than 4Ω.

Item 3: As the gas chromatography chamber and the atomic absorption analysis chamber use high-pressure steel cylinders, it is best to design the laboratory close to the cylinder chamber. There should be a distance of 0.5 meters between the test bench and the wall for easy operation and maintenance. In addition, a local exhaust hood should be installed above the atomic absorption instrument.

Item 4: If the instrument is controlled by a microcomputer or a microcomputer, you must pay attention to the supply voltage and frequency. In order to avoid voltage transients, instantaneous power failures, and insufficient voltage, uninterruptible power supplies (UPS) can be selected according to requirements.

Item 5: While designing the precision instrument room, we must also do a good job in the design of the related supporting chemical processing room, because this is very necessary to protect the instrument and strengthen the management.
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