CSC Scientific Blog

A blog about test equipment

Art Gatenby

Manufacturer of test equipment. The Company specialized in the measurement of Moisture, Particle Size and Surface Tension. In these areas CSC Scientific serves the Food, Chemical, Pharmaceutical, Petroleum, Waste Water, Mining, Power and similar industries.
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Recent Posts

Density - Who Cares? Maybe You Should.

Posted by Art Gatenby on Dec 7, 2017 12:31:49 PM

We’ve all heard of Density since general science class in middle school. "The weight of a 12 ounce Coke." That’s pretty simple.

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Topics: Liquid Properties, density, oscillating u-tube, liquid density

What are Liquid Properties? Why Should Anyone Care?

Posted by Art Gatenby on Aug 10, 2017 2:59:24 PM

The first question is, "What are Liquid Properties?" Are they some kind of underwater real estate?

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Topics: Automatic Surface Tension Measurment, Measure Viscosity, Consistency, contact angle, Liquid Properties, density

What Does A Moisture Balance Cost?

Posted by Art Gatenby on Mar 13, 2017 3:28:57 PM

Loss on Drying (LOD) Moisture Balance analysis is based on drying a sample and comparing the difference in weight before and after drying. 

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Topics: Moisture Testing, Loss-On-Drying, moisture balance

Do You Need An Automatic Tensiometer?

Posted by Art Gatenby on Dec 6, 2016 5:16:09 PM

This is an update of an article originally published in December 2013 - Three years ago.

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Topics: Automatic Digital Tensiometer, Automatic Surface Tension Measurment, Surface Tension Measurement, Surface Tension, du Nouy tensiometer, Liquid Properties, surface tension instruments, surface tension analysis, Digital tensiometer, automatic Tensiometer

A Sieve Shaker's Passing From Noise To Quiet

Posted by Art Gatenby on Oct 26, 2016 2:26:45 PM

Quiet Sieve Shakers

Recently in a quiet, reflective moment, I recalled my first work with sieve shakers. Horizontal motion with tapping was the basic shaker design. The Ro-Tap® was King, and there were few alternatives. Different shakers for special applications, such as the Mary Jane and one that was hung from the ceiling, were the exception. 

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Topics: Sieve Shakers, Sonic Sifter, Particle Size Analysis, Quiet sieve shakers, RoTap, Noisy Sieving, sieving, Endecotts, vacuum sievers

A Spotlight on Rotational Viscometers

Posted by Art Gatenby on Oct 3, 2016 10:45:00 AM

You probably know that rotational viscometers work by measuring the torque on a vertical shaft that rotates a spindle.  The spindle is in the test sample and its rotation is impeded in proportion to the viscosity of the sample. These instruments measure viscosity.

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Topics: Viscometers, Viscosity, Liquid Properties

Should You Move to "Actual" Surface Tension?

Posted by Art Gatenby on Sep 8, 2016 4:31:38 PM

An understandable definition of surface tension: The attraction force between molecules at the surface of a liquid. The force that keeps if from flying off into space.

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Topics: Tensiometer, Surface Tension Measurement, Surface Tension, actual surface tension, apparent surface tension, Liquid Properties

Initiation to Contact Angle

Posted by Art Gatenby on Aug 11, 2016 4:24:42 PM

A classical definition of Contact Angle:

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Topics: Surface Tension, contact angle, contact angle meter, dynamic contact angle, Liquid Properties

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

Is Test Sieve Certification All You Need?

Posted by Art Gatenby on Oct 29, 2015 1:45:10 PM

For several years, people in the test sieving business have been grousing about the difficulty of making sure that a test sieve certification is what they need. Anyone who is working with close tolerances in the smaller particle sizes, like 300 microns and smaller, have serious issues in matching results from test sieve to test sieve.

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Topics: Mid-Point Sieves, Calibration, Sieve Calibration, Sieve Certification, Sieve Testing, Sieves, Sieve Analysis

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