ASTM WK17912

    New Practice for Automatic Particle Counting below 4 microns in Lubricating and Hydraulic Fluids

    (What is a Work Item?)

    Developed by Subcommittee: D02.96 | Committee D02 | Contact Staff Manager


    1. Scope

    Counting and Sizing of particles in Lubricating and Hydraulic Fluids with a diameter less than 4 microns in diameter.

    Particles and contaminants in liquids can be detected and counted directly by numerous technologies which evaluate a sample of the liquid when the particle size is greater than 4 um diameter. Quantatative evaluation of particulate smaller than 4 microns has been relegated to Scanning Electron Microscope (SEM) Liquid Chromatography (HPLC) Patch Methods (Various) or use of a Centrifuge. all of these methods have individual short comings which the proposed method may overcome.


    Particle, Wavelength, Scattering, Brownian, Viscosity, Temperature, Agglomerates, Monomers, Dimers, Trimers, Illumination, Video visualization,

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Gerald Munson

    Draft Under Development