ASTM APPROVES NEW FUEL AND FUEL-ASSOCIATED WATER TEST METHOD

An ASTM Standard Test Method, based on LuminUltra Technologies’, has just been approved as ASTM D 7687, Method for the Measurement of Cellular Adenosine Triphosphate in Fuel, Fuel/Water Mixtures and Fuel-Associated Water with Sample Concentration by Filtration. Unlike Previous ATP test methods, the new Method has been demonstrated to not be affected by the Chemical interferences that have limited the overall usefulness of more…

ASTM APPROVES TWO NEW MICROBIOLOGICAL TEST METHODS FOR METALWORKING FLUIDS

In April 2009, ASTM approved two new Standard Test Methods. E 2657, Method for Determination of Endotoxin Concentration in Water-Miscible Metalworking Fluids, replaces an older Method: E 2250. E 2694, Method for Measurement of Adenosine Triphosphate in Water-Miscible Metalworking Fluids, is a new tool for measuring microbial biomass in MWF in less than 5-minutes….

Both new methods are available for…

FOR ATP IN FUELS, LUBRICANTS AND METALWORKING FLUIDS SHOW GREAT PROMISE

Recently approved ASTM D 7463 (ATP in Fuel) works great for rapidly determining biomass in conventional fuels. However, D7463 depends on an aqueous extraction step in which the extraction reagent pulls microbes out of the fuel sample. This step makes it impossible to use the method for determining ATP in fuels that retain water (for example ethanol-blended gasolines and some biodiesel fuels), or from high water-content…

ASTM DEVELOPS NEW METHOD FOR TESTING BIOMASS IN FUELS AND FUEL-ASSOCIATED WATER

Historical test methods for detecting microbial contamination in fuels (for example ASTM D6974 ) depended on the ability of microbes to form colonies on specific growth media. These methods were time consuming and typically required a 2-30 day incubation period before final results were obtained. ATP (adenosine triphosphate) is a molecule that is present in all bacteria, fungi, plant and animal cells. Hence, it…

Looking Back…A fresh look at five articles that were published in National Petroleum News in the 1990’s

A look back 6 – Microbes and Fuel Retailing

A look back 5 – Opening Your Biocide Toolbox

A look back 3 – Controlling Microbial Contamination

A look back 2 – Knowing When You Have Microbial Contamination

A look back 1 – Uncontrolled Microbes Eat Earnings

What We Need to Know in Order to Understand the Health Risks of Exposure to Metalworking Fluid Microbes

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