STLE Recording of Real-time Testing of Bioburdens in Metalworking Fluids Using Adenosine Triphosphate as a Biomass Indicator.

A webinar recording of the Wilbur C. Deutsch Memorial Award winning paper that Fred Passman presented at STLE’s annual meeting is now available for viewing…

This webinar discusses the comprehensive process by which the test method that was ultimately developed into ASTM E2694 was vetted in the laboratory and in a 12-week field evaluation at Caterpillar, East…

STLE University Webinar – Emerging Issues in MWF Microbiology: Biofilm Control

Fred Passman will be presenting a webinar on Monday 20 July 2011 from 1:00 PM until 2:00 PM (Eastern Daylight Time). During the webinar he’ll be discussing key concepts that industry stakholders must understand in order to effectively control biofilm accumulation in MWF systems.

For more information see the Webinar flier visit www.stle.org or contact Kara Lemar, STLE education manager at klemar@stle.org.

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…