Technical Standard and Detection of Ventilation Equipment for Chemistry Lab

There are many factories to produce ventilation equipment for the chemistry lab. And there exist more than 10 kinds of ventilation equipment. The chemistry lab ventilation equipment is more and more popular in universities and in institutes.The Ventilation arrangement is composed of several units.The qualities and technical standards of the equipment include the ventilation velocity,the ventilation capacity,the effect of ejecting ,the noise,and the material standard,etc.In this paper the ventilation equipment technical standards of several countries were studied and the ammonia detection was proposed to examine the key qualities of the ventilation arrangement.