DIN 51389-2
DIN 51389-2 Determination of lubricants; mechanical testing of hydraulic fluids in the vane-cell-pump; method A foranhydrous hydraulic fluids
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/1982
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 04/01/1982