Blender Qualification

GOOD VALIDATION PRACTICE (cGVP) EQUIPMENT VALIDATION
1

Hi, I am preparing a PQ protocol for V type high efficiency blender. I have several questions as follow:

  1. Can PQ be carried out at PV stage ?
  2. Which items should be qualificated except uniformity test and maximum mixing volume test?
  3. How many sampling points should be took for V type high efficiency blender?
    I need your help, thanks.