Example of checklist used for HFE in PSUA

Operability
1.1 / Is there enough clearance for operating of valve hand wheels, rotating isolation blinds, access sample points, drain valves, swing elbows for steam out, etc.?
1.2 / Are vent and drain valves kept outside insulation?
1.3 / Are there any "difficult to reach" situations, e.g., valve hand wheel obstructed by handrails, panels mounted too high?
1.4 / Are you able to see all critical control/block valves, instruments/gauges and blinds from normal working positions?
1.5 / Can you accurately read instruments that have direct readouts such as manometers, temperature gauge, level gauge, pressure gauge, flow meters and/or other direct readable instruments?
1.6 / Are equipment identification labelling/pipe marking and color coding appropriate?
1.7 / Are all control panels or HOA switches adequately located for access, orientated for consistency and labelled to reduce potential for human error?
1.8 / Are all sampling points/cabinets accessible, operable and do they have appropriate lighting?
1.9 / Are all local panel alarm indicators/lights appropriately color coded, e.g., red for alarm and green for safe?
Maintainability
2.1 / Do "field-run" tubing, heat tracing, conduit or cable trays restrict access for maintenance of equipment, such as pumps, package units, compressors, air coolers, exchangers, filters, valves, etc.
2.2 / Is there enough clearance for bolt removal at equipment isolation nozzles, valves and/or pipe flanges?
2.3 / Are there breakout flanges for deluge piping, where it may facilitate ease of maintenance?
2.4 / Does pump and compressor cabling/conduit/small bore piping obstruct operations/maintenance access?
2.5 / Can lighting fixtures, fire and gas detection equipment be easily and safely changed, inspected or cleaned?
Access/Egress/Safety
3.1 / Is there an adequate escape route with appropriate lighting from all areas in unit?
3.2 / Is there any obstruction around safety showers, fire fighting equipment, and/or other safety or loss prevention equipment?
3.3 / Are there any small bore piping, instruments, blinds, valve stems/hand wheels etc. that penetrates into access or walkways?
3.4 / Are there any instruments, junction boxes, or other devices in front of manhole/manway, stairs, ladders, maintenance access areas, etc.?
3.5 / Are there any head knockers, e.g., low beam, diagonal bracing, piping, valve stem, cables, etc.?
3.6 / Are there any tripping hazards, e.g., drain hubs, small bore pipe, uneven walk surface, etc.?
3.7 / Have all cages on ladders closer than 1520 mm (5 ft) to edge of elevated platforms been extended with straps to handrails, or have the handrails been raised to protect personnel from accidently going over handrails if they should fall off ladder?
3.8 / Are all openings through which someone may step or fall been protected, e.g., self closing gates at ladder step-off landings on elevated platforms?
3.9 / Do all moving parts on rotating equipment have guards or protective covers?
3.10 / Are removable guardrails and grating provided where necessary?
3.11 / Have all lifting lugs/pad eyes used for lifting modules or equipment skids been removed where they may restrict access or cause tripping hazards?
3.12 / Are steam and atmospheric vents routed to a safe location and have a "gooseneck" to prevent ingress of rainwater?
3.13 / Are all small bore tubing/piping wells supported?
3.14 / Are chain operators installed with safety cables?
3.15 / Are check valves installed with flow in the right direction?
3.16 / Are orifice plates installed in the right direction?