Historical
ISO 11500:1997
Hydraulic fluid power -- Determination of particulate contamination by automatic counting using the light extinction principle
This International Standard specifies a liquid automatic particle counting procedure for determining the particle size distribution and number of particles present in hydraulic fluid bottle samples taken in accordance with an approved procedure. Measurements are generally made with the particles suspended in the original liquid.
In general, this method of quantitative analysis is suitable for monitoring
- the contamination level in hydraulic systems;
- the progress of a flushing operation;
- support equipment and test rigs;
- packaged stock.
The use of this technique is only applicable to clear, homogeneous single-phase liquids; the presence of a fluid interface will obstruct the light beam and give false signals.
Content Provider
International Organization for Standardization [iso]
