15
0698-825 MD1xL / MD2xL - 06/2021
en
Annex
Purity classes of the compressed air according to ISO 8573-1:2010
Class
Particles per m²
Moisture content and
water
Complete oil [10]
0.1.. – 0,5μm
[1.6, 9]
0.5.. – 1μm
[1.6, 9]
1.. – 5μm
[1.6, 9]
0
According to definition
and better than class 1
According to definition
and better than class 1
According to definition
and better than class 1
1
≤
20.000
≤
400
≤
10
≤
-70°C
[2,5]
≤
0,01 mg/m³ [1,3]
2
≤
400.000
≤
6.000
≤
100
≤
-40°C
≤
0,1 mg/m³
3
---
≤
90.000
≤
1.000
≤
-20°C
≤
1 mg/m³
[1,4]
4
---
---
≤
10.000
≤
+3°C
≤
5 mg/m³
5
---
---
≤
100.000
≤
+7°C
6
≤
5 mg/m³
[1,7]
≤
+10°C
7
5 – 10 mg/m³
[1,7]
≤
0,5 g/m³
[1,8]
8
0.5.. – 5 g/m³
9
5.. – 10 g/m³
X
> 10 mg/m³
[1,7]
> 10 g/m³
> 5 mg/m³
[1,4]
[1] – reference conditions 1 bar(a) and 20°C at 0% relative humidity
[2] – unless otherwise agreed or stated, reference conditions 7 bar and 20°C
[3] – measured according to ISO 8573-2 and ISO 8573-5
[4] – measured according to ISO 8573-2 ; measurement according to ISO 8573-5 optional
[5] – measured according to ISO 8573-3 and, if required, ISO 8573-9
[6] – measured according to ISO 8573-4
[7] – measured according to ISO 8573-8
[8] – measured according to ISO 8573-9
[9] – if particles greater than 5 µm have been measured, class 0-5 cannot be applied
[10] – liquid, aerosol and vapour oil content