Post on 29-Jan-2016
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Phillips 66 High Learning Value Event
Equipment Opening Testing Criteria
Testing Criteria
1. 50% LEL
2. 50ppm H2S
3. 500ppm VOC *
4. < 150 F
5. < 1psi Pressure
6. No Residual Liquid; periodic drips only
No guarantee of safety. PPE often Needed.
When Is Testing Done?
Initial Equipment Opening
All initial openings on process equipment prior to line or flange breaking.
Sub-systems receive independent tests.
Steam & hydrocarbon
Re-Testing
Whenever equipment is completely closed it will be re-tested prior to opening.
Blinded vessels may be left open.
Valve isolations are always closed ea. shift.
How is Testing Conducted
Operator Testing
5-Gas Meters LEL, H2S, VOC Dilution Fitting 5:1
Temperature Gun
Try Point Bleeds, Vents
* Pressure gauges are an indicator; but not measure.
Craftsperson Verification
Try Point Tag
Minimally, every shift each Lead Craftsperson* is required to verify absence of energy and Equipment Opening Testing Criteria prior to working on a piece of equipment.
* Must be on the tools.
Craft verifies & signs tag during Initial Opening
Individual workers may always personally verify energy control.
Criteria Not Met/Unable to Test?
Criteria Not Met LEL, H2S, VOC too high?
Temperature too high?
Residual Liquid/Pressure?
Option 1 – RE-Clean Equipment
Option 2 – Alternate Plan
Option 3 – Job Safety Plan*
* OPS/MAINT/H&S Supv’s
Unable to Test No Try Point, Bleed or
location to test.
Option 1 – Redesign Equipment Isolation
Option 2 – Job Safety Plan
JSP does not guarantee work will proceed.
Conclusion
All equipment that contains process fluids must be tested for hazards prior to initial line breaking: LEL, H2S, VOCs, Temperature, Pressure & Residual Liquid
Readings are recorded on the Try Point Tag which is attached to the bleed on the equipment.
Crafts persons must verify acceptable readings prior to performing any initial line breaking activities.
Further equipment cleaning or redesigning the task is the preferred solution to non-passing criteria.
Job Safety Plan is required for any deviations to criteria.