DARRINGTON QUARRY - ELAIS FUEL CLEAN CASE STUDY

Diesel Fuel Sample Analysis – Before & After ELAIS Filtration

Following the cleaning process using the ELAIS diesel fuel cleaning system , we compared a “before” and “after” fuel sample to assess removal of contaminants and water.

Before Cleaning

• Appearance: Clear and bright to the naked eye, though a slight haze was visible in photographs. • Particulate Level: Trace amount, described as dirt. • Water Content: 41 ppm dissolved water, free water = none. • Fuel Colour: Yellow. • Biological Contamination: Bacteria = negative; Fungus = negative. • Other Fuel Properties: FAME = 0.8%, Sulphur = 15 ppm. • Particle Counts: o 4 μm: 16,040 o 6 μm: 7,390 o 14 μm: 1,376

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ISO Code: 21/20/18

After ELAIS Cleaning

• Appearance: Clear and bright, no haze. • Particulate Level: None detected. • Particulate Description: None. • Water Content: Reduced to 20 ppm dissolved water, free water = none. • Biological Contamination: Bacteria = negative; Fungus = negative. • Fuel Colour: Yellow. • Other Fuel Properties: FAME = 0.8%, Sulphur = 11 ppm.

Note: The reduction in sulphur from 15 ppm to 11 ppm is well within the permitted ultra-low sulphur diesel specification (≤ 10– 15 ppm). The ELAIS system does not chemically alter the fuel; this minor change is attributed to normal laboratory test variation and the removal of trace sulphur-containing particulate.

Particle Counts: o 4 μm: 331 o 6 μm: 331 o 14 μm: 16

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ISO Code: 16/14/11

Summary of Improvement

The ELAIS system effectively eliminated detectable particulate contamination and halved the dissolved water content , while maintaining the original fuel characteristics. The slight sulphur reduction is within normal tolerances and has no operational or compliance impact. From an ISO cleanliness level of 21/20/18 before cleaning, the fuel improved to 16/14/11 after a single filtration pass — representing a significant cleanliness upgrade and improved protection for fuel system components.