ISO 21018-4:2016
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
Hydraulic fluid power Monitoring the level of particulate contamination in the fluid Part 4: Use of the light extinction technique
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
19-08-2019
French, English
24-10-2016
ISO 21018-4:2016 specifies a method for the determination of the particulate contamination level using the light extinction technique (also known as light blockage or light obscuration) either online or off-line in containers. It also defines procedures for calibrating the instruments and verifying their correct operation both in the laboratory and in service.
In general, the techniques described in ISO 21018-4:2016 are suitable for monitoring
- the general cleanliness level in hydraulic systems,
- the progress in flushing operations, and
- support equipment and test rigs.
The use of this method is applicable to single-phase liquid systems only.
DevelopmentNote |
DRAFT ISO/DIS 21018-4 is also available for this standard. (06/2017)
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DocumentType |
Standard
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Pages |
11
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PublisherName |
International Organization for Standardization
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Status |
Withdrawn
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SupersededBy |
Standards | Relationship |
NEN ISO 21018-4 : 2016 | Identical |
BS ISO 21018-4:2016 | Identical |
NF ISO 21018-4 : 2016 | Identical |
BS ISO 21018-1:2008 | Hydraulic fluid power. Monitoring the level of particulate contamination of the fluid General principles |
ISO 21018-1:2008 | Hydraulic fluid power — Monitoring the level of particulate contamination of the fluid — Part 1: General principles |
ISO 5598:2008 | Fluid power systems and components Vocabulary |
ISO 11943:1999 | Hydraulic fluid power On-line automatic particle-counting systems for liquids Methods of calibration and validation |
ISO 11500:2008 | Hydraulic fluid power — Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle |
ISO 3722:1976 | Hydraulic fluid power — Fluid sample containers — Qualifying and controlling cleaning methods |
ISO 11171:2016 | Hydraulic fluid power Calibration of automatic particle counters for liquids |
ISO 16889:2008 | Hydraulic fluid power Filters Multi-pass method for evaluating filtration performance of a filter element |
ISO 12103-1:2016 | Road vehicles — Test contaminants for filter evaluation — Part 1: Arizona test dust |
ISO 4021:1992 | Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system |
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