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ISO 11943:2021

Hydraulic fluid power — Online automatic particle-counting systems for liquids — Methods of calibration and validation

General information
Valid from 10.05.2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
10.05.2021
Main
07.05.2018
Main
This document establishes methods for: -  validating equipment used to prepare secondary calibration suspensions for automatic particle counters; -  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 given size 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 in ISO 16889.
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