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Clean operating room | latest cleanliness grade standard
Date：2019-08-30Preview：24
Maybe you'll say, "isn't that what everyone knows about hundreds, thousands, tens, hundreds, hundreds, and 300,000?" This answer, before last June, was completely correct!
But according to the latest edition of the building technical code for hospital clean surgery, the correct answers are: level 5, 6, 7, 8, 8.5.
Are you right?
Knowledge in the update, we need to continue to learn, learn endless, come on!
Class 5 cleanliness
The number of particles in ambient air greater than or equal to 0.5 micron is greater than 350 particles /m3 (0.35 particles /L) to less than or equal to 3500 particles /m3 (3.5 particles /L). The number of particles greater than or equal to 5 microns per liter is 0. It's the same as level 100
Class 6 cleanliness
The number of particles in ambient air greater than or equal to 0.5 micron is more than 3500 particles /m3 (3.5 particles /L) to less than 35200 particles /m3 (35.2 particles /L). The number of particles greater than or equal to 5 microns is less than or equal to 293 particles per m3 (0.3 particles per L). It's equivalent to the original 1000 levels
Class 7 cleanliness
The number of particles in the ambient air greater than or equal to 0.5 micron is greater than 35200 particles /m3 (35.2 particles /L) to less than 352,000 particles /m3 (352 particles /L). Particles 5 or more microns or more than 293 particles /m3 (0.3 particles /L) to 2930 particles /m3 (3 particles /L) or less. Equivalent to level 10000
Class 8 cleanliness
The number of particles in the ambient air greater than or equal to 0.5 micron is greater than 352,000 particles /m3 (352 particles /L) to less than or equal to 3520,000 particles /m3 (3520 particles /L). The number of particles greater than or equal to 5 microns is 2,930 /m3 (3 particles /L) to 29,300 /m3 (29 particles /L). Equivalent to the original 100,000 level
Class 8.5 cleanliness
The number of particles in the ambient air greater than or equal to 0.5 micron is greater than 3520000 particles /m3 (3520 particles /L) to less than or equal to 11120000 particles /m3 (11200 particles /L). The number of particles 5 microns or more greater than 29,300 particles per m3 (29 particles per L) to 92,500 particles per m3 (92 particles per L). Equivalent to the original 300,000 level
