ISO 11171:2020 View larger

ISO 11171:2020

M00003907

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ISO 11171:2020 Hydraulic fluid power - Calibration of automatic particle counters for liquids

standard by International Organization for Standardization, 12/01/2020

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ISO 11171:2020 specifies procedures for the following:

a) primary particle-sizing calibration for particle sizes 1 m(c) and larger, sensor resolution and counting performance of liquid automatic particle counters that are capable of analysing bottle samples;

b) secondary particle-sizing calibration using suspensions verified with a primary calibrated APC;

c) establishing acceptable operation and performance limits;

d) verifying particle sensor performance using a test dust;

e) determining coincidence and flow rate limits.

This document is applicable for use with hydraulic fluids, aviation and diesel fuels, engine oil and other petroleum-based fluids. This document is not applicable to particle-sizing calibration using NIST SRM 2806b primary calibration suspensions.