Cleanroom standards
Class | Maximum particles/m3 a | FED STD 209E | |||||
≥0.1 μm | ≥0.2 μm | ≥0.3 μm | ≥0.5 μm | ≥1 μm | ≥5 μm | equivalent | |
ISO 1 | 10b | d | d | d | d | e |
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ISO 2 | 100 | 24b | 10b | d | d | e |
|
ISO 3 | 1,000 | 237 | 102 | 35b | d | e | Class 1 |
ISO 4 | 10,000 | 2,370 | 1,020 | 352 | 83b | e | Class 10 |
ISO 5 | 100,000 | 23,700 | 10,200 | 3,520 | 832 | d,e,f | Class 100 |
ISO 6 | 1,000,000 | 237,000 | 102,000 | 35,200 | 8,320 | 293 | Class 1,000 |
ISO 7 | c | c | c | 352,000 | 83,200 | 2,930 | Class 10,000 |
ISO 8 | c | c | c | 3,520,000 | 832,000 | 29,300 | Class 100,000 |
ISO 9 | c | c | c | 35,200,000 | 8,320,000 | 293,000 | Room air |
Wall/ceiling panel | Machine-made or Hand-made sandwich board | |||
Clean room equipment | Air shower, FFU, Pass box, Laminar flow cabinet, HEPA box | |||
Cleanliness | Class100-100000 | |||
Purification system | HVAC, or AC conditioner+FFU | |||
Floor | PVC anti-static floor or epoxy-based coating | |||
Other accessories | Stalinist window, LED panel light, Door, Hand wash sink, storage/shoe cabinet etc | |||
Service | Design, manufacturing, construction |
The most important role of dust-free cleanrooms is to control the cleanness day and temperature
and humidity of the atmosphere to which the products (such as silicon chips, etc.) are exposed,
so that the products can be produced and manufactured in a good environmental space, which we
call a dust-free cleanroom. According to international practice, dust-free decontamination levels
are mainly defined on the basis of the number of particles with a particle diameter larger than the
division criteria per cubic meter of air. That is to say that the dust free is not 100% free of a little
dust, but controlled on a very minute unit. Of course the dust standard compliant particles in this
standard are already small and miniscule with respect to our usual dust, but even a little dust can
have a very negative effect on the optical construction, so dust free is an inevitable requirement
for the production of products from optical construction.
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Amber PROFESSIONAL IN ♦FREE DESIGN ♦FACTORY PRICE ♥WELCOME TO CONTACT US TO GET BEST SOLUTIONS FOR YOUR CLEAN ROOM. |
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