This standard specifies the procedure for automatic particulate counting for liquids to determine the particle size distribution and number of particulates in hydraulic fluids collected in sample bottles according to established procedures. Measurements are usually performed with particles dispersed in a stock solution.
JIS B 9934:2000 history
2012JIS B 9934:2012 Hydraulic fluid power -- Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle
2000JIS B 9934:2000 Hydraulic fluid power -- Determination of particulate contamination by automatic counting using the light extinction principle