This International Standard contains procedures for:
a) primary particle-sizing, sensor resolution and counting performance;
b) secondary particle-sizing calibration using suspensions prepared with NIST reference materials;
c) establishing acceptable operation and performance limits;
d) verifying particle sensor performance using a truncated test dust;
e) determining coincidence and flow rate limits.
ISO 11171:1999 history
2022ISO 11171:2022 Hydraulic fluid power — Calibration of automatic particle counters for liquids
2020ISO 11171:2020 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2016ISO 11171:2016 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2010ISO 11171:2010 Hydraulic fluid power - Calibration of automatic particle counters for liquids
2001ISO 11171:1999/Cor 1:2001 Hydraulic fluid power - Calibration of automatic particle counters for liquids; Technical Corrigendum 1
1999ISO 11171:1999 Hydraulic fluid power - Calibration of automatic particle counters for liquids