Appendix G
New ISO Medium Test Dust and its effect on ISO . . .
53
Correlation
The table shows the correla-
tion between Particle Sizes Ob-
tained using ACFTD (ISO 4402:1991)
and NIST (ISO 11171) Cali-
bration Methods
This table is only a guide-
line. The exact relationship
between ACFTD sizes and the
NIST sizes may vary from in-
strument to instrument depend-
ing on the characteristics of
the particle counter and orig-
inal ACFTD calibration.
Particle Size Obtained Using
ACFTD
(ISO
4402:1991)
ISO/NIST
MTD
(ISO 11171)
µm
µm(c)
1
4.2
2
4.6
3
5.1
4
5.8
5
6.4
6
7.1
7
7.7
8
8.4
9
9.1
10
9.8
11
10.6
12
11.3
13
12.1
14
12.9
15
13.6
16
14.4
17
15.2
18
15.9
19
16.7
20
17.5
21
18.2
22
19.0
23
19.7
24
20.5
25
21.2
26
22.0
27
22.7
28
23.5
29
24.2
30
24.9
31
25.7
32
26.4
33
27.1
34
27.9
35
28.5
36
29.2
37
29.9
38
30.5
39
31.1
40
31.7
Other Standards
Although the ISO 4406:1999 standard is being used extensively within the hydraulics
industry other standards are occasionally required and a comparison may be requested.
The following table gives a very general comparison but often no direct comparison is
Summary of Contents for PML2
Page 1: ...PML Analyser UserGuide 200 052 EN www mpfiltri co uk ...
Page 6: ...6 Introduction Figure 1 ...
Page 38: ...38 Warranty ...
Page 62: ...Appendix K 62 Fault Finding ...
