ISO 11943:2018
ISO 11943:2018


This document establishes methods to:

— validate equipment used to prepare secondary calibration suspensions for automatic particle counters;

— perform online secondary calibration of automatic particle counters;

— match two or more online particle counters, i.e. to count the same number of particles at a given size by two APCs associated on line;

— validate 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 multipass filter test in ISO 16889.

General information 

  •  :  Withdrawn
     : 2018-05
  •  : 2
     : 29
  •  : ISO/TC 131/SC 6 Contamination control
  •  :
    23.100.60 Filters, seals and contamination of fluids

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