MICE hydrogen review Approval process Process Completed action

MICE hydrogen review Approval process

Process Completed action list Prerequisite testing Working group PPD Director & ISIS Director Approval Document pack What does approval mean? - Operate with hydrogen - Full experimental operation

Working group • Action list – Outcomes of this review – HAZOP 2 – Others at the discretion of the group • Commissioning progress report – Photographic evidence – Visits when appropriate to witness commissioning / tests • Schedule update

Document list • Updated risk assessments – General – DSEAR • Testing certificates for new equipment – Pipework pressure / leak tests, weld X-rays – Certificates of conformity, material certificates – Calibration certificates • Technical files for pressure equipment – PD 5500 calculations – Drawings and descriptions – Relevant certificates as above • Updated operating procedures, P&ID and zone drawing

Prerequisite testing • • Leak and pressure testing of all relevant systems Ventilation system commissioned Vacuum / purge systems commissioned Successful automated sequence runs with helium – Helium fill sequence (warm) – Vent sequence – Purge sequence • What won’t be tested – Liquid level sensor – Hydrogen fill sequence (helium comes from a different valve, so needs a separate sequence) – Operation in a magnetic field

Sign-off • As before, signatures from: – – MICE project manager Working group chair ISIS director PPD director