Laboratory equipment: How to choose a laboratory ultra-pure water machine

Laboratory equipment: How to choose laboratory ultra-pure water machine 1, first of all to understand their own water quality, that is, we often say the water resistance value or conductivity, the two derivative relationship is greater than 0.2MΩ.cm @25°C is still greater than 10MΩ.cm@25°C or greater than 18MΩ.cm@25°C. You can also refer to the national laboratory water standard (refer to Appendix 1). If these are uncertain, you can use the equipment and equipment you are doing. Determine, such as: general physical and chemical experiments, blood serum analysis, general laboratory tests, laboratory utensils cleaning, etc., use more than 0.2MΩ.cm@25 °C, if college students experiment, qualitative and quantitative analysis, environmental monitoring, food inspection and drugs The test can be used more than 10MΩ.cm@25°C. If there is high-end instrument HPLC, PCR, TOC analysis, Amino Acid analysis, atomic absorption, preparation of high-purity solution, etc., use more than 18MΩ.cm@25°C. Pure water.

2, the water demand first of all to understand how much water can be used in a day under normal circumstances, whether it is continuous water or intermittent water, high-end ultra-pure water equipment, the general water production is how many liters per hour, which is equipped with a water tank, the general water storage capacity is 20L - about 100L, the water flow rate is generally about 1.5L / min - 1.8L / min, according to their total daily water consumption to choose the water production of ultra-pure water machine.

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