Our Fuel Management Solutions are tailored to the unique needs of your business. For our Fuel Specialists to create your bespoke Fuel Management plan, we have to carry out a site assessment. This includes a complete fuel resilience survey to assess EN590 and ISO 4406:1999 compliance. To assess the quality of your stored fuel we take a fuel grab from the tank it is stored in. This is sent to an independent laboratory where a full analysis is carried out to identify any contaminants present in your stored fuel. Our fuel specialists are also OFTEC registered and can conduct a fuel tank survey to ensure compliance with current PPG2 oil storage regulations and minimize the risk of tank failure and associated leaks. The fuel samples and tank survey both form the basis of the actions needed to rectify any issues and help create your bespoke plan.
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Why are EN590 & ISO 4406:1999 important to Integrated Fuel Management?

EN590 & ISO 4406:1999 were introduced to outline standards which diesel and oil are to be measured against. These are important standards to consider when developing and implementing your fuel management plan, as they outline the characteristics your fuel should have in order to reduce its environmental impact.

In addition to this, these fuel particles can also affect the performance of your fuel when needed to power your generators. Each of these standards cover different characteristics that could affect the performance of fuel stored for 6 months or longer.

EN590 is an EU standard that outlines the properties that all diesel fuels need to meet before they are sold in the EU. Since its inception EN590 has been adapted to lower the Sulphur content of diesel and now allows the blending of up to 7% of bio-diesel with conventional diesel. Whilst this has some environmental benefits, it could also have a long-term impact in the performance of your stored fuel. 


Bio-diesel is hydroscopic, meaning it naturally absorbs water. As a result, you should regularly test your fuel to ensure it does not exceed the 200mg of water per kg (0.02%) standard outlined by EN590. The standard states that if your fuel does contain more that 0.02% of water per kg that you should ensure this is removed using an extraction process such as fuel polishing. In addition to the hydroscopic properties that bio-diesel possesses, it also reduced the Sulphur content of the diesel you use. Whilst this is an excellent environmental benefit, reduced Sulphur is ideal for diesel bug growth, therefore further contaminating the fuel. This can also be monitored and maintained through the implementation of an Intergrated Fuel Management Solution. 
ISO 4406:1999 is commonly referred to as the cleanliness code and consists of a three number rating system referring to the contaminant levels of correlating particles, 18/16/13. The particles are measured when oil flows past a fine laser beam, which has been programmed to look for particles that are 4, 6 and 14 microns in size. The volume of these are then reported. 


How does this relate to the 18/16/13 principle?

18/16/13 refers to the range in which these particles must fall within in order to be considered 'clean'. The particle volumes are then cross-referenced with the ISO Standard Table to find out whether the oil can be considered clean, with lower numbers in the code indicating fewer particles in the oil;
  • 18 = between 1300 - 2500 particles larger than 4 microns
  • 16 = between 320 - 640 particles larger than 6 microns
  • 13 = between 40 - 80 particles greater than 14 microns
In order to ensure your oil meets these standards you will need to have it regularly tested and polished where necessary. 

What can contaminate your fuel?

Fuel Contaminants hero

Complete Fuel Resilience Survey

As part of your site assessment Kingspan will provide you with detailed report on the quality of your stored fuel. This will include an extensive laboratory analysis of your current fuel supply to establish whether there are contaminants present. Through our site assessment we can also;
  • Carry out an OFTEC Tank Inspection
  • Perform an environmental risk assessment
  • Collect and test fuel samples
  • De-Commissioning of tanks no longer fit for purpose
  • Installation of replacement tanks
If you have not had an inspection recently it is likely that your tanks and management of the tanks are not compliant with the current regulations.

Download Site Assessment Brochure

Site Assessment

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To speak to a member of our team contact us via email: cleanfuel@kingspan.com or call us on NI: 028 3836 4600 / ROI: 048 3836 4600.

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