Publish Time: 2022-01-12 Origin: Site
For all laboratories, the fume hood is a necessary supporting facility, especially for many solvent-based products or additives involved in it, it is even more necessary to use this kind of ventilation equipment. If you are in this environment or are starting to build a laboratory, you need to understand the relevant knowledge about fume hoods. What are the effects of this kind of facility?
If you have worked in a related industry, you will know that most of the work in the laboratory is caused by a lot of toxic or disease-causing substances that are harmful to the human body. If a good ventilation channel or ventilation equipment is used to replace the air, it will easily cause harm to the operator's physical examination. That's why a fume hood is equipped in the laboratory.
The role of this kind of facility is to prevent the staff in the laboratory from absorbing some harmful and toxic or some unidentified gas or particulate matter, and it also allows the relevant staff to work at ease. Rather than having high fear of experimental work. Of course, it is also to be more secure from the aspect of safety. Nobody wants dangerous things to appear, and they must take precautions before they happen.
Therefore, the fume hood plays a very important role, protecting the personal safety of all operators, and at the same time providing clean and fresh air for all people in this working environment, so that everyone can I have a good mood when I work.
If the researchers in the laboratory often come into contact with a lot of bad things due to experiments, the laboratory must be equipped with special universal hoods, fume hoods, and other infrastructures that can be partially ventilated. After all, no one can guarantee 100% that every test is completely safe. The following editor will talk about some precautions for using laboratory fume hoods. I hope everyone can take a closer look and be more careful when entering the laboratory.
First, it is not possible to remove the adjusting window of the fume hood, not to mention the baffle plate inside the fume hood, especially not to use the fume hood at this time. As for flammable liquids and other substances, they cannot be stored in the lower cabinet or fume hood for a long time. Of course, if the lower cabinet of the fume hood meets NFPA45-2000 or NFPA30-2000, etc., it can store combustible liquids. It can be stored.
Second, if the adjustment window of the fume hood needs to be closed to the minimum, it must be done when it does not affect the laboratory test operation. If the fume hood is not required in normal times, the adjustment window should be closed in time. There should be no objects or people walking around the fume hood, and the fume hood adjustment window cannot be moved quickly, and a special small sign must be affixed on each fume hood in the laboratory, and the sign must be clearly written The time and basic information of the last on-site inspection of this fume hood.
If this fume hood fails the relevant performance tests, it must be stopped immediately until the fume hood is repaired, and a small reminder notice that restricts its use must be posted on it.