AS9968 Laboratory Viscosity Measurement of Thickened Aircraft Deicing/Anti-icing Fluids with the Brookfield LV Viscometer

This AS describes a standard method for viscosity measurements of thickened (AMS1428) anti-icing fluids.

Fluid manufacturers may publish alternate methods for their fluids. In case of conflicting results between the two methods, the manufacturer method takes precedence.

To compare viscosities, exactly the same measurement elements (including spindle and container size) must have been used to obtain those viscosities.