How long can the ultrapure water and pure water be preserved?

Because the production speed and efficiency of ultrapure water machine have been far higher than the traditional pure water production standard, it has become one of the necessary equipment for laboratory pure water preparation. The quality of pure water that can be produced by different ultrapure water machines is also different. Although there are many brands and models of laboratory ultrapure water machines, most of them are the same. How long can the pure water and ultrapure water produced by the pure water machine be preserved?

The production speed of ultrapure water machine is much higher than that of traditional pure water production equipment. It has become one of the laboratory water production equipment in various water industries. Although the water quality of ultrapure water produced by different ultrapure water system is different, the availability of ultrapure water quality is basically the same. How long can ultarpure water from the machine be lasted? Let's talk about it in detail below.

Generally speaking, the higher purity of water in the laboratory, the less it is to be stored for too long. For example 18.2m Ω For CM ultrapure water, the longer it is placed, the more serious the decline is. Generally, the resistivity of ultrapure water placed for 1 hour will drop to 4m Ω Cm, pH will drop to about 5.7. At the same time, due to the influence of the environment, microorganisms in the water will breed rapidly.

Therefore, in general, ultrapure water should not be put away for a long time. At the same time, in order to ensure the quality of pure water and ultra pure water, we should pay attention to the following tips when taking water:

1. The ultrapure water machine should be flushed once every 7-10 days to prevent the breeding of bacteria.

2. If it does not work for a long time, it is necessary to drain all the water in the machine and water tank.

3. When the ultrapure water machine takes water, the initial pure water and ultrapure water should be discharged, and then take water after the water quality is stable.

4. Do not place the pure water machine and water tank in direct sunlight to prevent the breeding of bacteria.

The above is the storage time of ultrapure water after taking water. Users need to learn about it in order to better use the machine and not waste the prepared pure water.