Water – De-Ionized Water

Next to water filtration and “softening,” de-ionization is probably the next most common water treatment.  Ions in water interfere with many cleaning processes and cause water spots on drying after rinsing.  The common measure of the amount of ions in water is “resistivity.”  The more “resistive” water is, the less ions it contains.  Water from a municipal …

Water – What Matters?

Some means of reducing water hardness as we’ve described in preceding blogs is an almost universal first step in making water pure enough for most cleaning applications.  But water softening only addresses the removal of only a few of many contaminants that are commonly present in our water supplies.  The remaining contaminants range from ions …

Metrology – Concepts in Practice

Preceding blogs on metrology have introduced some basic concepts which can serve as food for thought.  Today, I would like to give you a couple of examples of the practical application of the concepts discussed so far in industrial cleaning applications. Monitoring Contaminant Removal – Everyone wants to know how long it takes for a …

Metrology – Accuracy and Scale

No matter what is being measured, it is critical that the measuring instrument chosen be capable of providing an accurate and repeatable measurement of whatever needs measuring.  It sounds simple – – but isn’t.  In general, the larger the scale the less accurate an instrument becomes.  Let’s use weight as an example. Weighing devices come …

Metrology – Standards

Metrology, simply, is the science of measuring things.  Metrology is used extensively in the world of industrial cleaning to both control and quantify cleaning processes.  Finding the right equipment and procedures to produce accurate and meaningful results is often a challenge for those without extensive knowledge of the science.  The upcoming blogs on metrology are …