Description: the best flow rate of a pump at the highest efficiency point; Name: Optimal volumetric flow
Description: Rate of flow at the point of best efficiency; Name: Optimum rate of flow
Description: The norm in fixed relation to the feature being described. This defines the parameters that influence the contents of the correlated feature. Type and number of the norm with issue year and issue month must be given, e.g. DIN ISO 4711:YYYY-MM.; Name: Reference norm of the static seal, housing