What is a class 100 dust-free workshop
Dust-free workshop is also known as dust-free room, clean workshop, purification workshop, clean room, etc.
One hundred dust-free workshop is according to the standard of the People's Republic of China GBJ73-84, "Clean workshop Design Code" (hereinafter referred to as the "Code") clearly stipulates the four levels of air cleanliness (cleanliness refers to the degree of air dust particles in a clean environment), and the corresponding table is made to show the division of the standard:
This is based on the clean room grade standard 209E in the United States federal standard, each grade has a strict regulation on the number of dust particles with a diameter greater than or equal to 0.5um per cubic meter of air. The Specification also specifies in detail: "For the count of dust particles greater than or equal to 5 microns in clean rooms with air cleanliness of class 100, sampling should be carried out several times. When it appears several times, the test value can be considered reliable."