Beyond the Cleaning Lab Test Results

Process testing in a cleaning laboratory is a typical and useful step in the development of an industrial cleaning process.  In most cases, test cleaning is performed in laboratories maintained by the suppliers of cleaning equipment and/or cleaning chemistries.  The goal of lab testing, of course, is to simulate a cleaning process to determine its effectiveness …

How do you measure surface tension?

In the world of industrial cleaning technology we talk about surface tension a lot! So much so, in fact, that it is hard to enter into any discussion of cleaning without having the subject of surface tension arise.  In cleaning chemistry, for example, we are always looking for lower surface tension to promote penetration of small surface features …

Surface Tension and/or Wettability

A few days ago, I sat down to write what I thought would be a simple explanation of surface tension and how it is measured in the laboratory (a blog which will be published shortly if I can figure all of this out).  In doing the normal background research, however, I started to see contradictions …

Ultrasonic “Double Boiler”

Maximum ultrasonic performance requires the most efficient transfer of ultrasonic vibrations from the ultrasonic transducers to the liquid in the process tank.  This is generally accomplished by applying ultrasonic transducers directly to the exterior surfaces of a tank containing the process liquid.  Transducer attachment techniques favor attachment to metals like stainless steel.  What if the chemistry to be used …

Ultrasonic Performance – Ceramic Ring Test – Post Script

I usually try to make sure I’ve done my research prior to posting a blog.  As I was thinking about the post about the ceramic ring test, however, it occurred to me that there are a couple of variables that I had not previously considered – – the pencil and the means of applying the markings to the …

Cleanliness Testing – White Glove and Swab Tests

I have spent considerable time on the blog disclosing and discussing a variety of cleanliness testing methods.  A couple of tests that escaped earlier discussion, however, are the “white glove” test and the closely-related “swab” test.  These tests are conducted by rubbing or wiping a surface using a white (usually cotton) glove or a cotton …

Six Sigma – – The Role of Cleaning

Achieving Six Sigma Capability Parts Washing “Six Sigma” methodology is one of many tools that can be used to improve process efficiency.  The following several blogs are excerpted from an article written by Dale Bowden of the Cleaning Technologies Group and was published in Process Cleaning Magazine.  Mr. Bowden specifically explores the role of cleaning …

Potential Process Problems NOT Related to Cleaning

Most cleaning processes are comprised of a number of discreet steps.  A wash followed by one or more rinses and then a dry would be a typical cleaning process.  As parts being cleaned are moved from one process step to the next, they are vulnerable to potential risks by conditions not directly related to cleaning.  Whether related …

Chemistry – What is Titration?

Titration is a procedure frequently used to measure the chemical concentration in a liquid.  The concept is pretty simple.  A specific volume of the solution under test is collected and put into a container which is usually an erlenmeyer flask or a beaker. The container can be glass, plastic or another material.  Glass is often preferred because …