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  • ISO 21018-4:2016

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    Hydraulic fluid power Monitoring the level of particulate contamination in the fluid Part 4: Use of the light extinction technique

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Withdrawn date:  19-08-2019

    Language(s):  French, English

    Published date:  24-10-2016

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    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.

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    Development Note DRAFT ISO/DIS 21018-4 is also available for this standard. (06/2017)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Withdrawn
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    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

    Standards Referencing This Book - (Show below) - (Hide below)

    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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