A 5 min, condensed version of my 2014 paper: “A Differential Adenosine Triphosphate Test Method for Differentiating between Bacterial and Fungal Contamination in Water-Miscible Metalworking Fluids” is now available at http://audioslides.elsevier.com/getvideo.aspx?doi=10.1016/j.ibiod.2015.01.006.
The paper describes how the method was developed and validated. This is the first published report of an ATP test method that can quantify microbial biomass and then distinguish between bacterial and…

STLE held our annual meeting in Dallas two weeks ago. During the meeting I had the pleasure of chairing the MWF 210 – Metalworking Fluids Hot Topics course. Too many hot topics to cover in a blog post, so I’ll focus on my course module: Microbicide Regulatory Roulette Wheel.
The metalworking industry is facing a regulatory tsunami. The EU’s Biocidal Products Regulation (BPR; replaced the Biocidal Products Directive in 2012 and became effective in September 2013). Two items of particular…

Last week, I received an email query from Kevin H:
Hi, do you know the RLU limit for diesel i see the IATA say

Here’s my response:
Kevin:

Thank you for your query about the existence of an RLU criterion for ATP-bioburdens in non-aviation distillate fuel.

When I suggested the HY-LiTE test low, medium and high levels, I basically translated from the culture test criteria I had developed from the decision matrix I had been using for BCA’s Biodeterioration Risk Assessments. (high risk:…

BCA’s updated site launched on 07 May. This is the first overhaul since Wendy Dalia (then working on her PhD in marine biology) created the original site in the late 1990’s. Although I’ve kept much of the site’s original content, it has been reorganized to make it easier to find useful information. Let me know what you think.

In January 2014, at TAE’s 19th Tribology Colloquium, I presented th preliminary results of field evaluations that were being performed on LuminUltra Technologies dQGO-M test method. The new ATP test method provides a simple and reliable means of differentiating between fungal and bacterial contamination in metalworking fluids (MWF).

Four international MWF compounders participated in the field evaluation. All of their data were subitted in time for my STLE 2014 Annual Meeting…