Subject to change · V 2.02.20 · EN
Page 55
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Concentration in particles / ml
ISO 4406:17 Display OPCom
From up to and including
10.00 20.00 11 11
5.00 10.00 10 10
2.50 5.00 9 9
1.30 2.50 8 8
0.64 1.30 7 7
0.32 0.64 6 ≤ 6
0.16 0.32 5 ≤ 6
0.08 0.16 4 ≤ 6
0.04 0.08 3 ≤ 6
0.02 0.04 2 ≤ 6
0.01 0.02 1 ≤ 6
0.00 0.01 0 0
17.1.2 Cleanliness classes according to SAE AS 4059E
The values are added in cumulated form (all particles >4 µm, all particles > 6 µm, …), comparable to ISO.
All data in µm (c)
Concentration in particles / ml (ISO MTD)
SAE AS 4059E
Display
OPCom
> 4 µm (A) > 6 µm (B) > 14 µm (C) > 21 µm (D)
1.95 0.76 0.14 0.03 000 000
3.90 1.52 0.27 0.05 00 00
7.80 3.04 0.54 0.10 0 0
15.60 6.09 1.09 0.20 1 1
31.20 12.20 2.17 0.39 2 2
65.20 24.30 4.32 0.76 3 3
125.00 48.60 8.64 1.52 4 4
250.00 97.30 17.30 3.06 5 5
500.00 195.00 34.60 6.12 6 6
1,000.00 389.00 69.20 12.20 7 7
2,000.00 779.00 139.00 24.50 8 8
4,000.00 1,560.00 277.00 49.00 9 9
8,000.00 3,110.00 554.00 98.00 10 10
16,000.00 6,230.00 1,110.00 196.00 11 11
32,000.00 12,500.00 2,220.00 392.00 12 12
Table 36: Determination of cleanliness classes according to ISO 4406:17
Table 37: Determination of cleanliness classes according to SAE AS 4059E
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