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| EN 14112 & EN 15751 (Rancimat) | PetroOxy (ASTM D7545) | ASTM D2274 and EN ISO 12205 | ASTM D5304 | ASTM D4625 |
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Applicability | Europe | USA | USA (D2274) and Europe (EN ISO 12205) | USA | USA |
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Fuels | Stability of FAME and FAME-containing blends | Determining the stability of diesel fuels from B0 to B100 | Determining the inherent oxidation stability of a middle distillate | Assessing the potential long term storage stability of diesel | Determining the inherent storage stability of middle distillates |
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Limit | 8 hours for neat FAME in Europe, 3 hours in the USA | No limits specified under ASTM | 25 mg/100 mL in Europe | No limits specified | No specified limits: fuel should be stable for this period |
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Sample volume | 3 mL for neat FAME and 7.5 mL for FAME/diesel blends | 5 mL | 350 mL | 100 mL | 400 mL/time measured |
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Temperature (°C) | 110 | 140 | 95 | 90 | 43 |
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Pressure | Ambient | 700 kPa Oxygen | Ambient | 800 kPa oxygen | Atmospheric pressure |
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Flow | 10 L/min air | No flow | 3 L/h oxygen bubbling | No flow | Atmospheric-no flow |
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Time | Determined by the stability of the fuel | Determined by the stability of the fuel | 16 h | 16 h | 1 week roughly simulates 1 month of storage under normal conditions. Test carried out over 24 weeks, which is equivalent to two years |
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Measurement | Conductivity | Pressure decrease | Adherent insolubles and filterable insolubles: total insolubles | Total Insolubles | Adherent insolubles and filterable insolubles: total insoluble material |
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Applicability (advantages/Disadvantages) | Long analysis time for low FAME blends, time-consuming sample preparation | Rapid method, highly accelerated so not fully representative of actual stability | Short test, not fully representative of actual aging potential (comparative) | Short test, not fully representative of actual aging potential (comparative) | Long term storage potential, close to real life conditions but very slow |
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