Thanks Jack, Socrates,

Just curious, with regards to "Visual inspection test results will allow assessments to be made of how much separation is needed". Supposing I m to use steel shots in accordance to AMS2431/1. That s for new media and if I remember correctly, visual inspection of unacceptable shots is 1%, I find that I have 2% of unround shots. How do I assess how much of in-use media is required to go through the spiral separator. Is there any spec for or any common industrial practice here?