Decontamination in primary care dental practices - Gov.uk

Decontamination: Health Technical Memorandum 01-05 – Decontamination in primary care dental practices (2013 edition)Table 2 Summary checklist for hot and cold water servicesService Task* FrequencyHot water servicesArrange for samples to be taken from hot water calorifiers/ Annuallywater heaters in order to note condition of drain waterCheck temperatures in flow and return at calorifiers/water Monthly 4heatersCheck water temperature after draw-off from outlets for Monthly 4outlets 1,2,51 minute to ensure that 50oC has been achieved in sentinelVisually check internal surfaces of calorifiers/water heaters Annuallyfor scale and sludge. 5Check representative taps for temperature as above on arotational basisManual check to confirm secondary hot water recirculation Monthlypumps are operating effectivelyCold water services Check tank water temperature remote from in-coming ball 6-monthly 4valve and mains temperatures. Note maximum temperaturesrecorded by fixed max/min thermometers, where fittedCheck temperature in sentinel outlets after draw-off for Monthly2 minutes to establish that it is below 20oC 2,3Visually inspect cold water storage tanks and carry out Annuallyremedial work where necessary.Check representative taps for temperature, as above, on arotational basisDental equipment Drain down and clean At the end of each working dayEmergency eye wash sprays Flush through and purge to drain 6-monthly or more frequently ifrecommended by manufacturersMixed-temperature outlets Check delivery temperature in accordance with D08 6-monthlyShowerheads Dismantle, clean and descale showerheads and hoses Quarterly, or as necessarySporadically-used outlets Flush through and purge to drain, or purge to drain At least twice weekly 6immediately before use without release of aerosolsNotes:* See paragraph 182 in the Health & Safety Commission’s Approved Code of Practice L8 for further guidance on tasks thatshould be undertaken.1. For effective operation of hot water services, the minimum equilibrium temperature should be 55oC and be achieved withinseconds.2. For thermostatic mixing devices, temperatures should be measured at the inlet.3. For satisfactory operation of cold water services, temperature equilibrium to below 20oC should be achieved well within oneminute.4. Temperatures should be continuously monitored by the BMS.5. Additional checks should be made on the hot water circulating system and systems using trace heating at distal points.6. Risk assessment may indicate the need for more frequent flushing of outlets. It is preferable that this form part of the dailycleaning routine where appropriate. Alternatively, self-purging showers that discharge water to a drain prior to use and withoutthe release of aerosols can be considered.74