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  • BS ISO 21018-3:2008

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    Hydraulic fluid power. Monitoring the level of particulate contamination of the fluid Use of the filter blockage technique

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-07-2008

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Health and safety
       4.1 General
       4.2 Electrical power
       4.3 Mechanical fluid power
       4.4 Process liquids
    5 Principle of filter blockage technique
    6 Equipment
       6.1 General
       6.2 Equipment for on-line and off-line calibration
           and verification
    7 Operating procedures
       7.1 General
       7.2 Operating from a pressurized line
       7.3 Procedure for operating from a system reservoir
       7.4 Operating from a bulk container
       7.5 Operating from a sample bottle
    8 Calibration and verification procedure
       8.1 General principles
       8.2 Equipment required
       8.3 Preliminary procedures
       8.4 Preparation of dust sample
       8.5 On-line calibration/verification procedure
       8.6 Verification of correct operation
    9 Calibration and/or verification
    10 Test report
    11 Identification statement
    Annex A (informative) - Examples of use and applicability
            of the filter blockage technique

    Abstract - (Show below) - (Hide below)

    Describes a method for the semi-quantitative determination of the particulate contamination level using the filter blockage technique (also known as the mesh-obscuration method or the pore-blockage technique) either on-line or off-line in containers.

    Scope - (Show below) - (Hide below)

    This part of ISO 21018 specifies a method for the semi-quantitative determination of the particulate contamination level using the filter blockage technique (also known as the mesh-obscuration method or the pore-blockage technique) either on-line 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 this part of ISO 21018 are suitable for monitoring the general cleanliness level in hydraulic systems, the progress in flushing operations, support equipment and test rigs. The use of this method is applicable to all single- or multi-phase liquid systems.

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    Committee MCE/18/-/6
    Development Note Supersedes BS 3406-9(1997). (07/2008)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    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 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 21018-1:2008 Hydraulic fluid power Monitoring the level of particulate contamination of the fluid Part 1: General principles
    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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