This standard specifies a method for determining the size and quantity of solid particle contaminants in hydraulic oil by counting particles on the filter membrane surface using a microscope. This standard applies to the determination of solid particle contaminants in hydraulic oil used in truck cranes and tire cranes. Other machinery can also be used as a reference.
JB/T 9737.2-2000 history
2013JB/T 9737-2013 Mobile cranes.Solid particle pollution grade, measurement and selection of the hydraulic fluid
2000JB/T 9737.2-2000 Truck crane and wheel crane.Determination of solid particle contamination in the hydraulic fluid