The optional standard spindle SP-6 is suitable for measurement in an extended viscosity range. It is intended to be used in combination with the rotary viscometers ROTAVISC me-vi, hi-vi I or hi-vi II Complete or ROTAVISC me-vi, hi-vi I or hi-vi II Advanced. The optional standard spindle SP-6 is suitable for measurement in an extended viscosity range. It is intended to be used in combination with the rotary viscometers ROTAVISC me-vi, hi-vi I or hi-vi II Complete or ROTAVISC me-vi, hi-vi I or hi-vi II Advanced.