ISO 28523:2009
(Main)Ships and marine technology — Lubricating and hydraulic oil systems — Guidance for sampling to determine cleanliness and particle contamination
Ships and marine technology — Lubricating and hydraulic oil systems — Guidance for sampling to determine cleanliness and particle contamination
ISO 28523:2009 specifies methods for dynamic and static extraction of fluid samples from lubricating and hydraulic oil systems. A correct execution of the sampling is essential when analysing fluids from lubricating and hydraulic oil systems. In order to achieve reliable and comparable analysis results, the sampling must be performed under defined conditions and operating environment. When the system has reached its operating temperature, a representative sample is extracted from where the fluid is in a turbulent flow condition. This method is called dynamic sampling. If this is not possible, the sample can be extracted from the system tank. This method is called static sampling. ISO 28523:2009 specifies methods for both dynamic and static sampling in connection with collection in bottles. For extraction of samples through a filtration kit for comparison with “master slides”, reference is made to the manuals from the suppliers of such equipment.
Navires et technologie maritime — Les systèmes lubrifiant et hydraulique de pétrole — Directives pour essais pour déterminer la contamination de propreté et particule
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 28523
First edition
2009-02-15
Ships and marine technology —
Lubricating and hydraulic oil systems —
Guidance for sampling to determine
cleanliness and particle contamination
Navires et technologie maritime — Les systèmes lubrifiant et
hydraulique de pétrole — Directives pour essais pour déterminer la
contamination de propreté et particule
Reference number
ISO 28523:2009(E)
©
ISO 2009
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ISO 28523:2009(E)
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ii © ISO 2009 – All rights reserved
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ISO 28523:2009(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Dynamic sampling . 1
4 Static sampling . 3
5 Sample bottles . 4
6 Automatic particle counting . 5
Bibliography . 7
© ISO 2009 – All rights reserved iii
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ISO 28523:2009(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 28523 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 3, Piping and machinery.
iv © ISO 2009 – All rights reserved
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INTERNATIONAL STANDARD ISO 28523:2009(E)
Ships and marine technology — Lubricating and hydraulic oil
systems — Guidance for sampling to determine cleanliness and
particle contamination
1 Scope
This International Standard specifies methods for dynamic and static extraction of fluid samples from
lubricating and hydraulic oil systems.
A correct execution of the sampling is essential when analysing fluids from lubricating and hydraulic oil
systems.
In order to achieve reliable and comparable analysis results, the sampling must be performed under defined
conditions and operating environment.
When the system has reached its operating temperature, a representative sample is extracted from where the
fluid is in a turbulent flow condition. This method is called dynamic sampling. If this is not possible, the sample
can be extracted from the system tank. This method is called static sampling.
NOTE Particles > 20 µm settle quickly during static sampling.
This International Standard specifies methods for both dynamic and static sampling in connection with
collection in bottles.
For extraction of samples through a filtration kit for comparison with “master slides”, reference is made to the
manuals from the suppliers of such equipment.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3722, Hydraulic fluid power — Fluid sample containers — Qualifying and controlling cleaning methods
ISO 4021, Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines
of an operating system
ISO 4406, Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles
3 Dynamic sampling
3.1 Rigging the sampling device
If it is possible to mount the sampling device on a section of the system pipe with a turbulent flow, a sampling
device as specified in Figure 1 is used.
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ISO 28523:2009(E)
If this is not possible, a turbulent flow can be achieved by inserting a T-pie
...
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