Ship to Ship Transfer in Port
Checklist for STS Transfers Involving Vapor Balancing
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Discharging Ship’s Name:
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Receiving Ship’s Name:
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Name of POAC:
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Name of STS Superintendent if Different from POAC:
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Date of Transfer:
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Location of Transfer
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Discharging/Receiving Ship/Terminal
(Select as applicable )
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Discharging Ship
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Receiving Ship
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Remarks
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1
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Pressure in cargo tanks (mm, WG or psi)
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2
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Oxygen content in tank below 8% by volume
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3
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Responsible persons in possession of written permissions for cargo operations to commence
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4
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Within the last 24-hours tanks high level and overfill alarms tested.
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5
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Vapor recovery/balancing valves are correctly positioned
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6
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Vapor recovery hose inerted
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7
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Deck seal and PV breaker levels have been checked and are satisfactory
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8
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Leak testing performed by
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(State method)
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9
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Pressure and vacuum relief settings:
Liquid PV Breaker
Tank PV Valves
Mast head PV Valve(s)
Other PV relieving devices
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(Specify)
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10
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Type of vapors from present/previous cargoes
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(Refer to MSDS)
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11
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Initial cargo transfer rate (m3/hr or bbls/hr)
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12
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Maximum cargo transfer rate (m3/hr or bbls/hr)
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13
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Maximum acceptable pressure differential at maximum transfer rate (mm, WG or psi)
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14
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Cargo tank pressure range to be maintained (mm, WG or psi)
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15
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Cargo tank pressure alarm set points:
High alarm (mm,WG or psi)
Low alarm (mm, WG or psi)
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16
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Inert gas main pressure alarm set points:
High alarm (mm, WG or psi)
Low alarm (mm, WG or psi)
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17
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Vapor emission control system pressure alarm set points:
High alarm (mm,WC or psi)
Low alarm (mm, WG or psi)
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18
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Oxygen analyzer checked and calibrated
Alarm set point (% volume)
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(Specify)
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19
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Agreement of procedures – Start up, shutdown, Low Pressure & High Pressure alarms
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Name:
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Rank:
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Signature:
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Date:
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