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Class X (at Y ¦Ìm )

ÆäÖÐXÊÇÎÞ³¾Êҵĵȼ¶£¬ÀýÈç100»ò10000µÈµÈ£¬YÊÇÁ£¾¶Èç0.2¦Ìm , 0.5¦ÌmµÈ£¬¿É¸´Ñ¡¡£Òâ˼¾ÍÊÇʹÓÃÕ߹涨£¬¸ÃÎÞ³¾ÊÒ΢Á£º¬Á¿£¬ÔÚÕâЩÁ£¾¶±ØÐëÂú×ã¸ÃµÈ¼¶µÄÏ޶ȡ£ÕâÑù¿ÉÒÔ¼õÉÙ·×Õù£¬ÒÔÏÂÊǼ¸¸öÀý×Ó£º

Class1 (0.1¦Ìm, 0.2¦Ìm , 0.5¦Ìm)

Class 100(0.2¦Ìm , 0.5¦Ìm )

Class 100(0.1¦Ìm, 0.2¦Ìm , 0.5¦Ìm )

ÔÚClasses 100 (M3.5) and Greater  (Class 100£¬1000£¬10000....)£¬Ò»°ã¿´Ò»¸öÁ£¾¶¼´¿É¡£ÔÚClasses Less than 100 (M3.5)  (Class 10£¬1.... )£¬Ò»°ãÒª¿´¶à¼¸¸öÁ£¾¶¡£

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Class X (at Y ¦Ìm )£¬At-rest

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Class 10000 (0.3 ¦Ìm <= 10000)£¬As-built 
Class 10000 (0.5 ¦Ìm <= 1000)£¬As-built 

ÕâÑù×öµÄÄ¿µÄÊÇÈ·±£ÎÞ³¾ÊÒÔÚOperational״̬ʱ£¬ÒÀÈ»ÓÐ×ã¹»µÄ΢Á£¿ØÖÆÄÜÁ¦¡£

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Fed-Std-209E½à¾»¶È¶¨Òå 

 

 Class Name

 

 

Class Limits

0.1¦Ìm

0.2¦Ìm

0.3¦Ìm

0.5¦Ìm

5¦Ìm

Volume Units

Volume Units

Volume Units

Volume Units

Volume Units

SI

U.S.

(m3)

(ft3)

(m3)

(ft3)

(m3)

(ft3)

(m3)

(ft3)

(m3)

(ft3)

M 1

 

350

9.91

75.7

2.14

30.9

0.875

10.0

0.283

-

-

M 1.5

1

1,240

35.0

265

7.50

106

3.00

35.3

1.00

-

-

M 2

 

3,500

99.1

757

21.4

309

8.75

100

2.83

-

-

M 2.5

10

12,400

350

2,650

75.0

1,060

30.0

353

10.0

-

-

M 3

 

35,000

991

7,570

214

3,090

87.5

1,000

28.3

-

-

M 3.5

100

-

-

26,500

750

10,600

300

3,530

100

-

-

M 4

 

-

-

75,700

2140

30,900

875

10,000

283

-

-

M 4.5

1,000

-

-

-

-

-

-

35,300

1,000

247

7.00

M 5

 

-

-

-

-

-

-

100,000

2,830

618

17.5

M 5.5

10,000

-

-

-

-

-

-

353,000

10,000

2,470

70.0

M 6

 

-

-

-

-

-

-

1,000,000

28,300

6,180

175

M 6.5

100,000

-

-

-

-

-

-

3,530,000

100,000

24,700

700

M 7

 

-

-

-

-

-

-

10,000,000

283,000

61,800

1,750

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ISO-14644½à¾»¶È¶¨Òå 

ISO classification number(N)

Maximum concentration limits (particles/m3of air) for particles equal to and larger than the considered sizes shown below (concentration limits are calculated in accordance with equation (1).

0.1mm

0.2mm

0.3mm

0.5mm

1mm

5mm

ISO Class 1

10

2

 

 

 

 

ISO Class 2

100

24

10

4

 

 

ISO Class 3

1 000

237

102

35

8

 

ISO Class 4

10 000

2 370

1 020

352

83

 

ISO Class 5

100 000

23 700

10 200

3 520

832

29

ISO Class 6

1 000 000

237 000

102 000

35 200

8 320

293

ISO Class 7

 

 

 

352 000

83 200

2 930

ISO Class 8

 

 

 

3 520 000

832 000

29 300

ISO Class 9

 

 

 

35 200 000

8 320 000

293 000

NOTE Uncertainties related to the measurement process requires that concentration data with no more then three significant figures be used in determining the classification level.

Equation (1): Cn = 10NX (0.1/D)2.08ÆäÖÐCnÊÇ΢Á£Å¨¶È£¬NÊǽྻ¶È£¬DÊÇÁ£¾¶

 

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