Hydraulic fluid power — Online automatic particle-counting systems for liquids — Methods of calibration and validation (ISO 11943:2021)
This document establishes methods for:— validating equipment used to prepare secondary calibration suspensions for automatic particlecounters — performing online secondary calibration of automatic particle counters — matching two or more online particle counters, i.e. to count the same number of particles at a givensize by two APCs associated online — validating online particle counting systems with and without online dilution as used, for example,to measure the filtration efficiency of a hydraulic filter as described in the multi-pass filter test inISO 16889.
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