This document describes a recommended method for the interpolation of particle concentration and filter Beta Ratio data when results are not otherwise available at the desired particle sizes. It is applicable for assessing conformance with existing fluid cleanliness and filter Beta Ratio specifications whereby the specification and actual test results are provided in different units of particle size, for example, the specification is in µm(c), but the particle counts or Beta Ratio data are in units of µm(b).
BS PD ISO/TR 4808:2021
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Hydraulic fluid power. Interpolation method for particle count and filter test data
BSI Group , 02/19/2021
Pages: 22







