CSC Scientific Blog

A blog about test equipment

CSC Scientific Blog

How Long Does a Water Activity Test Take?

Posted by Amanda Ranowsky on Jul 27, 2017 8:00:00 AM

The answer to the question, “How Long Does a Water Activity Test Take?” is, as with most testing questions, “it depends.” Some water activity meters promise a test completed in a very short time; some in as little as five minutes. This time is an arbitrary selection that may or may not produce a satisfactory result.

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Topics: Bound Moisture, Free Moisture, Moisture Analysis, Water Activity, Moisture, water activity measurement

Capacitance & Moisture *** What is It? *** Why Should You Care?

Posted by Art Gatenby on Jan 4, 2016 3:54:31 PM

As people who measure moisture, we at CSC Scientific work to find the best technique.

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Topics: Moisture Analysis, Moisture Testing, Moisture, capacitance, fast moisture test

Don’t Worry - Karl Fischer is Easy

Posted by Art Gatenby on Nov 16, 2015 5:25:25 PM

When we first started measuring moisture with Karl Fischer,I was instructed in the complex chemical reactions involved. I was also was told that the process was skittish.

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Topics: Coulometric Karl Fischer, Volumetric Karl Fischer, Moisture Testing, Karl Fischer, Karl Fischer Titration, Moisture

How I Learned That Black Liquor Was Not Dark Rum

Posted by Art Gatenby on Jun 26, 2014 4:31:00 PM

When our customers tell me about the different places where CENCO and CSC Digital Moisture balances are used it always interests me.

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Topics: Moisture Analysis, Moisture Testing, Moisture

What Can I Use To Get The Moisture Content In My Product?

Posted by Art Gatenby on Oct 3, 2013 5:36:00 PM

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. 

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Topics: "Ask Art", Moisture Analysis, Karl Fischer, CSC Digital Moisture Balance, Loss-On-Drying, Moisture

What is Moisture Content?

Posted by Art Gatenby on May 29, 2012 3:24:00 PM

Last week, as I was reflecting on a recent moisture content problem, I recalled our series “Loss-on Drying and Other Moisture Mysteries.” In that series I examined moisture chemistry in products. However, I did little to define moisture content.

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Topics: Bound Moisture, Free Moisture, Moisture Analysis, Water Activity, Moisture Testing, Karl Fischer, Karl Fischer Titration, Moisture

Why Do I Get Inconsistent Moisture Test Results?

Posted by Art Gatenby on Oct 14, 2011 2:32:00 PM

Why are my Moisture Test results inconsistent?” 

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 and sample handling contribute to seemingly intractable moisture test result inaccuracies.

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Topics: Moisture Analysis, Moisture Testing, Karl Fischer, Loss-On-Drying, Moisture

Loss-On-Drying Moisture Analysis and Other Moisture Mysteries Part III: Free and Bound Water

Posted by Art Gatenby on Jan 25, 2011 4:18:00 PM

In my previous missive about Loss-On drying, we discussed Vapor Pressure -- because logically it was next. As we continue to explore moisture, we learn how vital vapor pressure is when regarding the quirky issues of free and bound water.

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Topics: Evaporation, Bound Moisture, Free Moisture, Moisture Analysis, Moisture Testing, Loss-On-Drying, Moisture

It Was Still Running

Posted by Art Gatenby on Aug 17, 2009 1:26:00 PM

As part of our line of moisture measurement instruments, we produce a Karl Fischer titrator, We call it the Aquapal. The heart of the Aquapal is a series sophisticated electronics. Its purpose is to measure small amounts of moisture.

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Topics: Karl Fischer, Moisture

Karl Fischer Titration – Defined? or Over Simplified?

Posted by Art Gatenby on Jan 19, 2009 4:42:00 PM

Often I’m asked “What is Karl Fischer titration?” I’m always somewhat reticent to answer. If I can’t quickly change the subject I revert to a simple explanation, that even I (being somewhat challenged as a chemist) can understand. The explanation seems to help the novice understand Karl Fischer.

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Topics: Coulometric Karl Fischer, Volumetric Karl Fischer, Karl Fischer, Karl Fischer Titration, Moisture

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