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PARTICLE COUNTING IN DIESEL FUEL AND BIODIESEL BLENDS

24/2/2017

Avoid maintenance down time by monitoring the cleanliness of fuel

Modern diesel engines achieve high fuel efficiency and lowered emissions due to the use of complex fuel systems and modern fuels. The quality of the fuel has a direct impact on performance and component longevity. In fact, poor performance and component failure is more likely to be related to the condition of the fuel than to mechanical fatigue

The quality of diesel fuel is governed by international specifications such as ASTM D975, D7467 and EN 590. They regulate the physical properties of the fuel, including cleanliness. Cleanliness, or more specifically particle content, is a key factor in fuel quality.

The cleanliness limits in the World Wide Fuel Charter are presented in terms of particle counting and diesel fuel specifications ASTM D975 and D7467 recommend using particle counting as a method of testing degradation of diesel fuel that has been in storage for extended periods. ASTM test method D7619 for particle counting in middle distillate fuels includes diesel and biodiesel blends in its scope.

Particle counting is an established method used to better understand and monitor the cleanliness of fuels. Whether within the distribution network or in the laboratory, the portable AvCount Lite is a very compact, full featured particle counter that can be battery or mains powered. It provides an accurate determination of particle distribution in a liquid sample. Samples can be drawn from bottles or on-line with real-time test progress and results displayed, allowing for immediate corrective action. Avcount Lite is pre-programmed with three fully automated test methods, including ASTM D7619, covering middle distillate fuels, including diesels, bio-diesels and bio-diesel blends.

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