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Like every other supply, gas bottles get cycled through, so that the oldest on board get used first and the newly delivered should be stored to be used last (at the back of the gas rack assemblage).
Shipping to shore
When a gas bottle rack is prepared for shipment back to shore, each cylinder is vented outside (either on the dock or on the landing). When venting out cylinders ALWAYS open the bottle slowly and control the noise level.
When preparing shipping gas racks, the following procedure shall be followed in AMS:
1) Gas bottles are usually sent in the SURF container (shipment).
2) Use the 'Gas Bottle' function to add a gas bottle rack (pallet) to that shipment. This function will automatically fill in the gas bottles on the rack.
C) Shore procedures
Banding
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Pressure testing and refill
Process to Refill Gas Cylinders The gas bottle cylinders have to be hydro tested (pressure tested) every 5 years.
AMS/warehousing process to refill gas cylinders that are used on the ship.:
In an effort to more accurately track the usage and cost of the gas cylinders by AMS inventory numbers, the following procedure described below will be used.
The warehouse man will be responsible for working with the vendor to fill the cylinders and see that these are returned to IODP in a timely manner.
When IODP gas cylinders, used in the labs onboard the ship, return in the surface shipment from a port call, they will be sent to a vendor to be refilled.
1) When the cylinders arrive, the supervisor of technical services (Brad Julson) and the TAS business coordinator (John Miller) will be notified and a requisition will be prepared in AMS, using the gas rack numbers (GR numbers), or for individual cylinders, the gas bottle (GB) numbers. The costs can initially be entered as $1 until the actual statement arrives with actual costs.
2) Once the requisition has been prepared, the vendor will be notified to pick up the cylinders by the warehouseman/IODP dock. When the vendor takes the bottles to be refilled, the vendor must produce a receipt indicating which gas racks and gas cylinders have been picked up, both by the IODP gas rack /gas bottle number as well as the serial numbers. This receipt must be scanned and entered into AMS as an attachment for the requisition . (REQ).
The status of the req REQ will be changed to “On Order”. When an employee views the gas rack in Item Inventory, it will indicate that the gas rack is on order, which indicates that the gas rack is out for refill at AOCthe vendor.
3) When the refilled gas racks/cylinders are returned to IODP by the vendor, these must be checked in as received in the AMS requisition. The packing slip from the vendor must list the bottles by AMS GB and GR numbers, as well as by serial numbers. This receipt must be scanned and entered into AMS as an attachment for the requisition.
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The warehouseman will check the received full gas racks into the shore warehouse inventory. The status of the gas rack, when viewed in Item Master, will now show up in the “Qty On Shore” field. SimarilySimilarily, when the gas racks are allocated to a shipment, or are in the shipment to the ship, these will show up in the “QTY Allocated” and “Qty In Transit” fields in the Item Master screen.
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