1 APEA/IP Guidance on Storage and Dispensing of High Blend ...
1 APEA/IP Guidance on Storage and Dispensing of High Blend ...
1 APEA/IP Guidance on Storage and Dispensing of High Blend ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<str<strong>on</strong>g>APEA</str<strong>on</strong>g>.<str<strong>on</strong>g>IP</str<strong>on</strong>g>guidanceE85fuel 2008OVERVIEW1 <strong>Storage</strong> <strong>and</strong> <strong>Dispensing</strong>:1.1 Existing general c<strong>on</strong>trol measures for the storage <strong>and</strong> dispensing <strong>of</strong> petroleum-spirit can,with certain excepti<strong>on</strong>s, be equally applied to alcohol fuels such as HBEF. The guidance given inthe Blue Book 1 , as supplemented by this Note, should be followed for new installati<strong>on</strong>s, redevelopments<strong>and</strong> modificati<strong>on</strong>s.1.2 The physical characteristics <strong>of</strong> HBEF relative to petrol require special c<strong>on</strong>trol measuresto minimise the risk <strong>of</strong> fire or explosi<strong>on</strong> <strong>and</strong> envir<strong>on</strong>mental c<strong>on</strong>taminati<strong>on</strong> where the fuel is stored<strong>and</strong> dispensed. The characteristics giving rise to the need for additi<strong>on</strong>al c<strong>on</strong>trol measures canbe broadly categorised as: -- Material compatibility- Increased c<strong>on</strong>ductivity- A wider flammability range; <strong>and</strong>- Solubility with water2 Material Compatibility:2.1 HBEF have different properties to those <strong>of</strong> petrol, which means special c<strong>on</strong>siderati<strong>on</strong>shave to be made when choosing equipment <strong>and</strong> materials for certain comp<strong>on</strong>ents <strong>of</strong> theinstallati<strong>on</strong>. Some c<strong>on</strong>venti<strong>on</strong>al materials (such as aluminium, zinc <strong>and</strong> brass) used in petrolstati<strong>on</strong>s together with some plastic <strong>and</strong> rubber materials may be adversely affected by HBEF.2.2 The presence <strong>of</strong> materials in the installati<strong>on</strong> that are incompatible with HBEF can be thecause <strong>of</strong>: -- Leaks due to degradati<strong>on</strong> that can give rise to fire/explosi<strong>on</strong>, safety <strong>and</strong> envir<strong>on</strong>mentalc<strong>on</strong>cerns.- Fuel quality problems caused by suspended matter (c<strong>on</strong>taminati<strong>on</strong>) in the fuel resulting fromthe effects <strong>of</strong> corrosi<strong>on</strong> <strong>and</strong> degradati<strong>on</strong> <strong>of</strong> unsuitable comp<strong>on</strong>ents <strong>and</strong> fittings.3 Increased C<strong>on</strong>ductivity3.1 Ethanol has approximately ⅓ <strong>of</strong> the c<strong>on</strong>ductivity <strong>of</strong> water <strong>and</strong> is at least 10 times morec<strong>on</strong>ductive than petrol. Whilst these characteristics reduce the risk <strong>of</strong> static accumulati<strong>on</strong> thepossibility <strong>of</strong> galvanic corrosi<strong>on</strong> is increased <strong>and</strong> should be taken into c<strong>on</strong>siderati<strong>on</strong>.3.2 Particular attenti<strong>on</strong> must, therefore, be given to the specificati<strong>on</strong> <strong>and</strong> approvals <strong>of</strong> allequipment in c<strong>on</strong>tact with the fuel, (such as submersible pumps, tank gauge probes <strong>and</strong> overfillpreventi<strong>on</strong> devices or probes) as the increased c<strong>on</strong>ductivity may also give rise to the formati<strong>on</strong><strong>of</strong> local corrosi<strong>on</strong> cells between adjacent dissimilar metals.4
Change language