This TNZ 47 checklist supports safe tank to tank transfer operations at bulk liquid terminals. It covers key controls including pre transfer ullage checks and confirmation by two people, bunding of the area and lines, operational automatic tank gauging, functional high and high high level alarms, and 30 minute GLI level verification. It prompts for documented procedures, preventive maintenance on equipment, staff presence, and full PPE. It verifies vapors are routed via tank vents, all equipment is earth bonded, and Zone 0 areas remain free from ignition sources. It includes line patrols to confirm setup, Tier 1 emergency plan availability, hose inspections within six months, and camlocks tied closed, plus space for comments and photos.
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