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Cleanroom Classified
Cleanroom Equipment

Cleanroom-Classified

Cleanroom ClassifiedAn ever increasing number of companies require a facility to provide an environment which enables the control of their process, particularly important for today’s telecoms / net space, defence, food, pharma, biotech and automotive industries. The ability to supply high quality, often ‘Box in Box’, type solutions has become paramount for businesses to function profitably.

Classified clean rooms are very familiar to the pharmaceutical, electronic, semi-conductor and wafer-fab industries, ranging from Class 100,000 up to Class 1 and are determined by the operation of the particular room or process. Clean rooms are classified by the cleanlines of their air . The method most easily understood most universally applied is based on ISO and cGMP Standards as given in the table.

Purity Classes for sterile zones

Clean rooms are designed to provide this by meeting purity classes of various degrees based on ISO and cGMP standards, as directed by the given applications

Air Particle Count Maximum allowable particle count per M3
DIN
EN ISO
4644-1a)
US
Fedral Standard
209 Si a)
> 0.1 um > 0.2 um > 0.3 um > 0.5 um > 1.0 um > 5.0 um
ISO
Class 1
  10 2        
ISO
Class 2
  100 24 10 4    
ISO
Class 3
M1.5
(1) b)
1000
1240
237
265
102
106
35
35
8  
ISO
Class 4
M2.5
(10) b)
10000
12400
2370
2650
1020
1060
352
353
83  
ISO
Class 5
M3.5
(100) b)
100000 23700
26500
10200
10600
3520
3530
3500
832 29
0
ISO
Class 6
M4.5
(1000) b)
1000000 237000 102000 35200
35200
8320 293
247
ISO
Class 7
M5.5
(10000) b)
      352000
353000
350000
83200 2930
2470
2000
ISO
Class 8
M1.5
(100000) b)
      3520000
3530000
3500000
832000 29300
24700
20000
ISO
Class 9
        35200000 8320000 293000

a) Varies by status of operation, ideal conditions depicted
b) Class division in cubic feet

For Guidance

Class 1 and 10 (the highest specification) are generally used for integrated circuit and semi-conductor manufacture.

Class 100 (BS. 5295 equivalent classifications E and F) are often used by the electronics industry along with some applications within pharmaceutical facilities.

Class 1,000 to 10,000 are used by manufacturers of the highest specification fibre optics, precision engineering, sterile packaging and pharmaceutical manufacturing.

Class 100,000 is adequate for general component assembly and packaging.

Strength and Beyond....
Strength and Beyond....

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