ISO 16232-9:2007 PDF

Scope: This part of ISO 16232 defines methods for determining the size distribution of particulate contaminants extracted from automotive components using techniques described in ISO 16232-3, ISO 16232-4 and ISO 16232-5, using automatic light extinction particle counter instruments (APC). It only applies to the analysis of the whole volume of extraction liquid. The size range of particles that can be measured by this technique is limited to <= 70 μm(c), because of the method of calibration used (ISO 11171). However, the calibration can be extended to other sizes provided that it is agreed and included in the Inspection Document. This technique is only applicable to measuring particles contained in clear, single phase liquids.

ISO 16232-9:2007 Referenced Document

ISO 11171 Hydraulic fluid power — Calibration of automatic particle counters for liquids*， 2022-03-18 Update
ISO 11943 Hydraulic fluid power — Online automatic particle-counting systems for liquids — Methods of calibration and validation*， 2021-05-10 Update
ISO 16232-2 Road vehicles - Cleanliness of components of fluid circuits - Part 2: Method of extraction of contaminants by agitation
ISO 16232-3 Road vehicles - Cleanliness of components of fluid circuits - Part 3: Method of extraction of contaminants by pressure rinsing
ISO 16232-4 Road vehicles - Cleanliness of components of fluid circuits - Part 4: Method of extraction of contaminants by ultrasonic techniques
ISO 16232-5 Road vehicles - Cleanliness of components of fluid circuits - Part 5: Method of extraction of contaminants on functional test bench
ISO 16232-7 Road vehicles - Cleanliness of components of fluid circuits - Part 7: Particle sizing and counting by microscopic analysis

2007 ISO 16232-9:2007 Road vehicles - Cleanliness of components of fluid circuits - Part 9: Particle sizing and counting by automatic light extinction particle counter