洁净度级别Clean Class

粒径Particles Size(um)

0.1

0.2

0.3

0.5

0.5

1

35.0

7.50

3.00

1

-

10

350

75.0

30.0

10

-

100

-

750

300

100

-

1000

-

-

-

1,000

7.00

10000

-

-

-

10,000

70.3

100000

-

-

-

100,000

700

ISO
Classification
Number(N)

0.1um

0.2um

0.3um

0.5um

1.0um

5.0um

ISO Class1
ISO Class2
ISO Class3
ISO Class4
ISO Class5
ISO Class6
ISO Class7
ISO Class8
ISO Class9

10
100
1000
10000
100000
1000000
-
-
-

2
24
237
2370
23700
23700
-
-
-

-
10
102
1020
10200
102000
-
-
-

-
4
35
352
3520
35200
352000
3520000
35200000

-
-
8
83
532
8320
83200
832000
8320000

-
-
-
-
29
293
2930
29300
293000

洁净度级别
Clean Class

尘埃最大允许数/立方米
Maximum permit quantity of particles percubic metre

尘埃最大允许数/立方米
Maximum permit quantity of microorganism

≥0.5um

≥5um

浮游菌个/立方米

沉降菌个/30min

100

3,500

0

5

1

1000

350,00

2,000

100

3

10000

3,500,000

20,000

500

10

100000

10,500,000

61,800

-

15