Clear guidance yes! just downloaded 'Risk Criteria-based Priority and Prudent PM Interval Table' there are 3 columns for intervals, Prudent PM, ECRI PM and ASHE PM and in many cases they give different interval times. This table is sorted by Function, Application, Maintenance, History, Risk Criteria and Priority Level. So why should 3 bodies have different results. Bet you could find a lot of discrepancies between the different healthcare institutes in the UK. My question is "why can we not have a universal PM based on the manufacturers recommendations after all they built the thing"
