ISO 11171:2022 PDF

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.

ISO 11171:2022 Referenced Document

ISO 12103-1 Road vehicles — Test contaminants for filter evaluation — Part 1: Arizona test dust*， 2024-01-23 Update
ISO 16889 Hydraulic fluid power — Filters — Multi-pass method for evaluating filtration performance of a filter element
ISO 3722 Hydraulic fluid power; Fluid sample containers; Qualifying and controlling cleaning methods
ISO 4787 Laboratory glass and plastic ware — Volumetric instruments — Methods for testing of capacity and for use
ISO 5598 Fluid power systems and components — Vocabulary

2022 ISO 11171:2022 Hydraulic fluid power — Calibration of automatic particle counters for liquids
2020 ISO 11171:2020 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2016 ISO 11171:2016 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2010 ISO 11171:2010 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2001 ISO 11171:1999/Cor 1:2001 Hydraulic fluid power - Calibration of automatic particle counters for liquids; Technical Corrigendum 1
1999 ISO 11171:1999 Hydraulic fluid power - Calibration of automatic particle counters for liquids