The ground of the atomic absorption chamber is generally the terrazzo floor and the floor. The operating table is 0.75 meters high and 0.80 meters wide. The table is 0.5 meters away from the wall. The terrazzo board is covered with rubber plates. The room and the atomic absorption room should be equipped with sample processing room, and the sample processing room should be equipped with fume hood, water supply, and medicine cabinet.
Circuit: single-phase three-wire (fire, zero, ground), three-phase five-wire atomic absorption chamber with many instruments.
Gas circuit: There are generally three kinds of gas pipelines, laughing gas, acetylene gas, and air. The gas enters the room through the outdoor steel cylinder. After entering the room, the main pipeline is distributed to each chromatograph through the pressure regulator valve. Add a needle valve in front of the instrument. Compressed gas can be used as air compression pump.
Ventilation: Combustible gas for atomic absorption, which emits a large amount of carbon dioxide, so there must be good ventilation. Install an exhaust hood above the instrument (as shown in the figure). Use a roof fan. Generally, the room is 200mm from the ground under the corridor side wall A louver vent with a height of 400 × 400mm is set.
Room temperature: The temperature of the atomic absorption chamber is generally required to be 22-27 degrees. The large laboratories use integrated air conditioning, and the air outlet of the air conditioning should be located in the upper part of the room.
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