Page 8-6 Lasair II Particle Counter Operations Manual
Chapter 8: Statistics Mode
Use the following sources for more information about the FS-209E standard:
Institute of Environmental Sciences and Technology
940 East Northwest Highway
Mount Prospect
Illinois, 60056
USA
Tel: 0101 708 255 1561
Fax: 0101 708 255 1699
e-mail: Publicationsales@iest.org or iest@iest.org
Web Site: www.iest.org
Table 8-3: FS-209 Class Standards
Maximum Particles Per Unit Volume
Class 0.1
μ
0.2
μ
0.3
μ
0.5
μ
5.0
μ
SI
Englis
h
m
3
ft.
3
m
3
ft.
3
m
3
ft.
3
m
3
ft.
3
m
3
ft.
3
M1 350 75.7 30.9 10.0
M1.
5
11,24035.
0
265 7.5
0
106 3.0
0
35.3 1.00
M2 3,500 757 309 100
M2.
5
10 12,40
0
350 2,650 75.
0
1,060 30.
0
353 10.0
M3 35,00
0
7,570 3,090 1,000
M3.
5
100 26,500 750 10,60
0
300 3,530 100
M4 75,700 30,90
0
10,000
M4.
5
1,000 35,300 1,000 247 7.00
M5 100,000 618
M5.
5
10,000 353,000 10,000 2,470 70.0
M6 1,000,000 6,180
M6.
5
100,00
0
3,350,000 100,00
0
24,70
0
700
M7 10,000,000 61,80
0