It has been a busy and interesting time attending the XV11th International Biodeterioration and Biodegradation Symposium.

Visit Dr Alexander McFarlane and Dr Joan Kelley at our stand to discuss good fuel husbandry and the simplicity of using FUELSTAT Plus test kit.

He is now our Research and Technology Manager, working with Dr Joan Kelley, and will manage a variety of research and development projects, including the design of innovative tests kits for the rapid detection of microbiological contamination in fuels. (Major airlines, large fuel distribution companies and maritime suppliers are all important customers.) He will also act as consultant on all aspects of microbial contamination in fuel systems and participate in industry standards committees.

After graduating from the University of Lancaster in 2007, Alex joined Shell Research, where he was an integral member of the Aviation Fuels team, working on alternative jet fuels and lead free Avgas. He developed expertise in a wide range of analytical techniques for testing jet fuel, diesel and Avgas, as well as novel fuel analysis and jet fuel thermal stability.
Alex then undertook a five-year PhD and Postdoctoral research project at the University of Sheffield (co-sponsored by Shell Research Ltd. and Airbus), investigating the impact of alternative fuels and novel materials on microbial communities in conventional aviation fuel systems. The project developed a predictive and mechanistic understanding of microbial biofilm formation and proposed novel management/remediation approaches; building up expertise in wide range complex molecular biology techniques, as well as developing non-standard methods for analysing microbial contamination.

Every two years the aerospace world descends on Paris-Le Bourget Airport to display its technological prowess and industrial might.  FUELSTAT is busy again here meeting customers – – – check out the show – @ 

And it’s great to see our Global Distributors Satair Booth B194, Hall 4.


Are you visiting the show this week? – Want to know more about FUELSTAT? – email and he will be very pleased to meet you.


Conidia Bioscience is pleased to announce that FUELSTAT® is compliant with ASTM D8070. 

ASTM International has now approved a new Standard Test Method for detecting microbial contamination in liquid fuels using immunoassay techniques; designated as ASTM D8070. Conidia Bioscience is pleased to announce that FUELSTAT®, our simple 10-minute test for detecting microbial contamination in both aviation and diesel fuel, is fully compliant with ASTM D8070.

ASTM International is a globally recognized leader in the development and delivery of voluntary consensus standards. Today, they have over 12,000 standards in use around the world to improve product quality, enhance health and safety, strengthen market access and trade, and build consumer confidence.

ASTM D6469 – 14, Para 8.3 – 8.6, Standard Guide for Microbial Contamination in Fuels and Fuel Systems section states, “It is recommended that ideally testing should be completed on site within a few minutes of sampling”. However, the regulation also states that if the test cannot be undertaken on site fuel samples must be transported on ice and tested 4 hrs but no longer than 24 hrs after sampling. FUELSTAT® overcomes this potential problem as the test is conducted on site, negating the danger of changes to levels of contamination in the sample caused by transportation at the incorrect temperature.

Dr. Joan Kelley Technical Director of Conidia Bioscience said, “We are delighted that this new standard test method has been approved by ASTM and that FUELSTAT® is fully compliant with ASTM D8070. Immunoassay test kits such as FUELSTAT® offer a low cost, easy to use test option that gives quick results and requires little investment. There are no special handling, storage or fuel disposal requirements. The very nature of how the test works means that there is no risk of cross-contamination: results are accurate and completely reliable”.

There are a number of proprietary tests on the market to determine the presence of microbial contamination but many are laboratory based tests or rely on culture growth and are therefore time-consuming.  FUELSTAT® would appear to be the most simple to use test available on the international market.  No special skills are required to use the test, and there is no investment needed for a reader to translate the results.

The awareness of fuel contamination has grown in recent years. Many different microorganisms can enter the fuel chain at any stage, living in the water phase and feeding off the fuel.  Prolonged, heavy contamination is now an expensive issue, with the possibility of fuel pipeline blockage or corrosion both of which will require expensive mechanical intervention and significant downtime to clean fuel tanks and ancillary equipment. The majority of operators have concluded that detecting and dealing with this potential problem by testing early is the efficient, cost-effective answer, to manage this risk.


An image of a fuel tester | Diesel Fuel Analysis | Conidia Bioscience