This ramble is about changes in the Surface Tension Equipment landscape.
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Topics: duNouy Rings, Tensiometer, Surface Tension Measurement, Surface Tension, Interfacial Tensiometer, Fisher Tensiomat, Liquid Properties
The primary purpose of a sieve shaker is to provide motion to a sample in a test sieve.
An effective sieve shaker creates a motion that presents all the particles to all of the sieve openings and assists particles in passing through. This requires both rotary and vertical motion.
This process seems simple enough, but let's not be taken in.
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Topics: Sieve Shakers, Particle Size Analysis, Sieve Testing, Sieves
You may recall that I promised to offer my interpretation as to how Surface Tension is related to Viscosity.
To begin with, liquid surface tension and viscosity share a common trait: they both involve properties of fluids. After that, things start to get murky.
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Topics: Wilhelmy Plates, Viscosity, duNouy Rings, Tensiometer, Surface Tension Measurement, Surface Tension, Interfacial Tensiometer, Liquid Properties
My musings were interrupted this week with a pressing challenge. It was stated like this:
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“My duNouy ring kept falling off the arm hook when attempting to immerse it into a high-viscosity sample.”
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Topics: duNouy Rings, Surface Tension Measurement, Surface Tension, Interfacial Tensiometer, tensiometers, Liquid Properties
When I tell people at cocktail parties that we specialize in Particle-Size Analysis. I usually get a polite response of ------ “OH !!,” which translates to “So who cares?”
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Topics: Sonic Sifter, Particle Size Analysis, Sieves, Sieving Process
I have often ranted about the limited range of ASTM 11 sieve mesh standards as it relates to individual sieve certification. We at CSC have tried to help clearly distinguish between different levels of inspection and/or degrees of conformity. We outlined three levels of sieve certification. These are working sieves, mesh certified sieves and mid point sieves. There are summary definitions of these categories on the CSC Web site.
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Topics: Sieve Shakers, Particle Size Analysis
In one of my more contemplative moments, I thought a bit of history about particle size analysis would be of interest. So let’s see Who Cares About Sieve Testing.
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Topics: Sieve Shakers, Particle Size Analysis, test sieve equipment, sieve mesh
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
