ISO 11171:2020Withdrawn

Hydraulic fluid power — Calibration of automatic particle counters for liquids

Transmissions hydrauliques — Étalonnage des compteurs automatiques de particules en suspension dans les liquides

This edition has been replaced by ISO 11171:2022.

Abstract / scope

This document specifies procedures for the following:

a) primary particle-sizing calibration for particle sizes 1 µm(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.

Life cycle

Replaces

ISO 11171:2016WithdrawnHydraulic fluid power — Calibration of automatic particle counters for liquidsInternational Standard · Published 5 Oct 2016 · ISO/TC 131/SC 6

Replaced by

ISO 11171:2022PublishedHydraulic fluid power — Calibration of automatic particle counters for liquidsInternational Standard · Published 18 Mar 2022 · ISO/TC 131/SC 6