Hydac CS 1000 Series User Manual

Tables - ISO 4406 / SAE AS 4059
HYDAC Filtertechnik GmbH
en
Page 67
BeWa CS1000 3247149k en.doc 2005-10-12
15 ISO 4406 and SAE AS 4059 Classes
15.1 ISO 4406:1999
In ISO 4406 particle counts are determined cumulatively, i.e. > 4 µm(c), >6 µm(c) and
>14 µm (c) (manually by filtering the fluid trough an automatically using particle counters)
and allocated to measurement references.
The goal of allocating particle counts to references is to facilitate the assessment of fluid
cleanliness ratings.
In 1999 the "old" ISO 4406 was revised and the size ranges of the particle sizes undergoing
analysis redefined. The counting method and calibration were also changed.
This is important for the user in his everyday work:
Even thought the measurement references of the particles undergoing analysis have
changed, the cleanliness code will change only in individual cases. When drafting the "new"
ISO 4406 it was ensured that not all the existing cleanliness provisions for systems had to be
changed.
15.1.1 ISO 4406 table
Allocation of particle counts to cleanliness classes:
Particle count /
100 ml
Particle count /
100 ml
Class More than Up to (and including) Class More than Up to (and including)
0
0 1
15
16,000 32,000
1
1 2
16
32,000 64,000
2
2 4
17
64,000 130,000
3
4 8
18
130,000 250,000
4
8 16
19
250,000 500,000
5
16 32
20
500,000 1,000,000
6
32 64
21
1,000,000 2,000,000
7
64 130
22
2,000,000 4,000,000
8
130 250
23
4,000,000 8,000,000
9
250 500
24
8,000,000 16,000,000
10
500 1,000
25
16,000,000 32,000,000
11
1,000 2,000
26
32,000,000 64,000,000
12
2,000 4,000
27
64,000,000 130,000,000
13
4,000 8,000
28
130,000,000 250,000,000
14
8,000 16,000

Hydac CS 1000 Series Specifications

General

Brand	Hydac
Model	CS 1000 Series
Category	Accessories
Language	English