CHAPTER No . 6

RECEIPT PROCEDURES

Documentation.

All consignments of fuel shall be covered by a Release Certificate or a Full Specification Test Certificate which could be checked to confirm conformity with the Aviation Fuel Quality Requirements for Jointly Operated Systems, or agreed relevant specification.
Consignments in small parcels (e.g. road or rail) may be covered by a Release Certificate, however, a Full Specification Test Certificate covering the batch from which the consignment originates must be available. The Release Certificate should be checked to verify that the batch number correctly corresponds to that recorded on the Full Specification Test Certificate.

Receipt – General.

At depots or terminals handling only aviation fuels, each grade should preferably be received via segregated lines.
At general oil product terminals, aviation fuels should only be received via white products cargo lines. Jet fuels should preferably be received via lines reserved for middle distillates (kerosene, automotive Gasoil, diesel, etc) and Aviation gasolines via lines reserved for light distillates (gasolines, special solvents etc).
Wherever possible product to product pumping should be adopted without the introduction of water to separate products or to clear lines handling aviation fuels. If lines handling aviation fuels have to be left full of water, it should not be sea water but should be fresh or suitably buffered water.
Aviation fuels should not be left in multi-product lines between receipts.
When receiving multi-product cargoes the discharge sequence should be arranged to minimize the effects of interface contamination of the aviation grades. Leading and trailing grade interfaces must be diverted into non-aviation storage of slop tanks.
One or more tanks shall be segregated for receipt of product, checked for water and any water removed before receipt begins.

Receipt by Single Grade Pipeline:

During receipt of the product, samples shall be drawn from the pipe-line at the commencement, middle and end of the transfer and at any change of batch, as near as possible to the receiving tank. These samples should be checked according to Control Check.
Should large amounts of water or solids contaminants or abnormal Density be noted, the flow shall be stopped if possible or diverted to a slops tanks and the pumping station of the pipeline notified. Delivery shall only be resumed after clearance has been given by the Installation Superintendent.

Receipt by Multi-Product Pipeline:

(a) Procedures similar to 3 (a) and 3 (b) here above shall be

enforced but with sampling frequency increased to two hours.

(b) The most important quality protection measure in multiproduct

pipeline movements is the method of handling grade, interface cuts. Care should be taken to ensure that the leading and trailing interface between the grades handled in the pipeline are directed into non-aviation storage.

To limit the degradation of aviation fuels due to interfaces commingling or pipeline pick-up, leading and trailing consignments should be of one of the following products listed in order of preference.

Jet A-1 : Middle Distillates; Light Distillates Feedstock;

Motor Gasoline.

Jet B : Light Distillate Feedstock; Middle Distillate;

Motor Gasoline.

Avgas : Premium Motor Gasoline; Light Distillate

Feedstock; Middle Distillate.

Note:

Motor Gasoline should preferably be free of detergent type

additives in pipelines handling Jet fuel grades.

Additives:

Certain product additives, because of their surface active properties are known to be harmful to aviation fuels. When products containing these additives precede aviation pipeline consignments there is danger that the resultant pick-up can lead to quality problems.

Where harmful additives are known to be included in products intended for transportation with in multi-product pipelines carrying aviation products, the carrier company should be requested to exclude the additives from the product entering the pipeline and injection should take place after the break out points.

Receipt by Ocean Tanker/Coastal Tanker/Inland Waterway Vessel Before Discharge.

Documents should be checked to ascertain the nature of the cargo. In the case of single grade cargo, the previous load must be the same in order to handle the vessel as a "dedicated transport".
All ships tanks must be checked for water with water finding paste. If water in substantial quantities is found in any tank, the amount should be estimated and a complaint made to the ships Master and to the supplying company concerned.
The Bill of Lading must be checked. If the ullage in any compartment differs greatly from the loading figures, the ships Master should be consulted; if no satisfactory explanation is obtained the suspect compartment should not be discharged and the supplying company should be advised. Fuel in the suspect compartment may be unloaded only if the results of a Recertification test carried out on an Average Sample are satisfactory.
A 1-litre Middle Sample should be taken from each compartment and checked according to Control Check. If satisfactory results are obtained and the Density is within +/- 0.003 of the results reported on the Release Certificate, product can be accepted.
If the results are not satisfactory, the vessel must not be discharged. A letter of protest should be served on the ships Master and the supplying company concerned should be advised. The suspect fuel may be unloaded only if the results of a Recertification test carried out on an average sample is satisfactory.
An additional 8-litre Representative composite Sample must be taken an sealed in the presence of the Master. This sample need not be tested unless the quality of the consignment is subsequently questioned. It should be retained at the installation until at least two days after complete exhaustion of the relevant batch.

Receipt by Rail or Road Tank Car Before Discharge.

The seals, and grade places shall be checked on arrival of the vehicle.
Drain samples must be drawn from each compartment and checked according to Control Check. The Density must be within +/- 0.003 of the results reported on the Release Certificate. If a difference in Density greater than +/- 0.003 is found, the matter must be investigated, and if a satisfactory explanation cannot be found, the consignment should not be discharged.
Any trace of free settled water must be drained off. If water or sediment is present in substantial quantities, a settling time of 10 mins should be observed and a fresh sample drawn. If substantial quantities of water (more than 2 litres) are still present the measures taken will have to be decided by the Superintendent; the supply source concerned should be notified.

Quality Control Procedures After Discharge.

After product has been received into storage tanks, the stock must be quarantined and a batch number allocated. When tank isolation is achieved by means of block and bleed valves, the shut off valve in the body bleed system must be locked open at all times.
As soon as the tank contents are quiescent, an top, middle and lower samples show it to be free of sediment and visual suspended water, draw an Average Sample for laboratory testing i.e. Recertification Test if received from tanker or via non-segregated systems. Where product is received via fully segregated systems and dedicated transports (e.g. barge, road or rail) a Control Check only must be carried out.
Measure the Conductivity and Temperature of fuels containing an anti-static additive at mid stock level on completion of settling and monthly thereafter until the batch is exhausted.