Articles on Background Issues, Methods, and Product Details
When people are looking for a way to measure small amounts of moisture, we often recommend the Karl Fischer method.
The first question many ask is, "What is Karl Fischer?" The second question usually is, "How does it work?"
I thought it might be interesting to answer the second question from the perspective of actually being inside the Karl Fischer Titration Cell... read more.
Karl Fischer Titration and Loss on Drying (LOD) are both methods for determining moisture content in a product.
That’s where the similarities end, though. Here’s the difference between Karl Fischer and Loss on Drying... read more.
The direct methods of Loss on Drying and Karl Fischer have the benefit that between them they can get a good moisture content result on almost any product or material.
But these tests usually take several minutes... read more.
When People are first introduced to the Karl Fischer Moisture Determination Method, eyes glaze over and we can perceive a mental “Why did I ask?”
If you have any history with moisture analysis, you will have found, that for some applications, the Karl Fischer Titration Method is the best and sometimes the only way to get an accurate moisture measurement... read more.
Five years ago, we published an article on in-line vs. off-line moisture measurement. At that time we debated whether these measurement systems should be called on-line or in-line. We chose to use the term "on-line". Since then, however, the world of the internet became known as "online". So, to avoid confusion, we changed our view and now refer to direct measurement as "in-line" moisture measurement... read more.
With the steady rise and success of chips, corn curls, cookies, breads etc., the snack food and baking industries have now become more competitive then ever. The most powerful and destructive natural force on earth has taken a stand in the industry as one of the most commonly measured properties in food materials - water... read more.
When our customers tell me about the different places where CENCO and CSC Digital Moisture balances are used it always interests me.
A few weeks ago, I was asked if I understood the Black Liquor application for moisture testing. As far as I knew, it was something about maybe Extra Dark Bacardi Rum or Moonshine in a Black Bottle.
When I responded with that they replied:
“No Art, it’s about a major process in pulping for paper making”... read more.
In the world of material testing, moisture content is different things to different people. However, there is a common concern. Manufacturers, distributors and retailers each are concerned with how moisture content affects what they are making, shipping, storing or selling... read more.
A question we get a lot is:
“How do I determine the moisture in my product?
Of course, the answer is often “it depends”, and the method does depend on the chemical and physical composition of the product. There are several methods used to determine moisture content: Loss-on-Drying (also known as Weight Loss), Karl Fischer, NIR, and Radio Frequency... read more.
Most of us think about measuring moisture by
When using these processes, we take for granted that the results will be the product's actual moisture... read more.
At one end of the spectrum is the classic Speedy Moisture Tester where you use the reaction of water with calcium carbide to cause a mini explosion resulting in a moisture measurement reading. This method is used frequently for soils, concrete, and other like materials... read more.
Most of us think about measuring moisture by...
When using these processes, we take for granted that the results will be the product's actual moisture.
Not always so... read more.
That is an issue for many of you who test for moisture. We discussed the complexities and multiplicity of issues involved with moisture content determination in our “Loss-on Drying Moisture Analysis and other Moisture Mysteries” series.
In addition to intrinsic properties of test samples that may adversely affect moisture testing systems, automatic equipment parameter set-up, operator oversights andsample handling contribute to seemingly intractable moisture test result inaccuracies... read more.
Many accessing our web site ask questions such as: "How does water content affect water activity?" "How is water activity different from water content?" "Can I convert from moisture to water activity?"
I previously commented on water activity and now hope to clarify the differences between water activity and moisture content. Given that both of these measurements deal with water connected to a material, we must first understand of water content in a product... read more.
Many accessing our web site ask questions such as: "How does water content affect water activity?" "How is water activity different from water content?" "Can I convert from moisture to water activity?"
Given that both of these measurements deal with water connected to a material, we must first understand of water content in a product... read more.
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