Is the water spray system ready for use?
In cases where flammable and/or toxic products are handled, water spray systems should be regularly tested. Details of the last tests should be exchanged.
During operations the systems should be kept ready for immediate use.
Is sufficient suitable protective equipment (including self-contained breathing apparatus) and protective clothing ready for immediate use?
Suitable protective equipment, including self-contained breathing apparatus, eye protection and protective clothing, appropriate to the specific dangers of the product handled, should be available in sufficient quantity for operations personnel both on board and ashore.
Storage places for this equipment should be protected from the weather and be clearly marked.
All personnel directly involved in the operation should utilise this equipment and clothing whenever the situation requires.
Personnel required to use breathing apparatus during operations should be trained in its safe use. Untrained personnel and personnel with facial hair should not be selected for operations involving the use of breathing apparatus.
Are hold and inter-barrier spaces properly inerted or filled with dry air as required?
The spaces that are required to be inerted by the IMO Gas Carrier Codes should be checked by ship's personnel prior to arrival.
Are all remote control valves in working order?
All ship and shore cargo system remote control valves and their position indicating systems should be regularly tested. Details of the last tests should be exchanged.
Are the required cargo pumps and compressors in good order and have maximum working pressures been agreed between ship and shore?
Agreement in writing should be reached on the maximum allowable working pressure in the cargo line system during operations.
Is reliquefaction or boil-off control equipment in good order?
It should be verified that reliquefaction and boil-off control systems, if required, are functioning correctly prior to commencement of operations.
Is the gas detection equipment properly set for the cargo, calibrated and in good order?
Span gas should be available to enable calibration of gas detection equipment. Fixed gas detection equipment should be calibrated for the product to be handled prior to commencement of operations. The alarm function should have been tested and the details of the last test should be exchanged.
Portable gas detection instruments, suitable for the products handled, capable of measuring flammable, and/or toxic levels, should be available.
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Portable instruments capable of measuring in the flammable range should be calibrated for the product to be handled before operations commence.
Are cargo system gauges and alarms correctly set and in good order?
Ship and shore cargo system gauges should be regularly checked to ensure that they are in good working order.
In cases where it is possible to set alarms to different levels, the alarm should be set to the required level.
Are emergency shut-down systems working properly?
Where possible, ship and shore emergency shut-down systems should be tested before cargo transfers.
Does the shore know the closing rate of ship's automatic valves; does ship have similar details of shore system?
Automatic shutdown valves may be fitted in the ship and the shore systems. Among other parameters, the action of these valves can be automatically initiated by a certain level being reached in the tank being loaded either on board or ashore.
Where valves are fitted and used, the cargo handling rate should be so adjusted that a pressure surge evolving from the automatic closure of any such valve, does not exceed the safe working pressure of either the ship or shore pipeline system.
Alternatively, means may be fitted to relieve the pressure surge created, such as recirculation systems and buffer tanks.
A written agreement should be made between the ship and shore supervisor indicating whether the cargo handling rate will be adjusted or alternative systems will be used;
the safe cargo handling rate should be noted in this agreement.
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