ASTM D2196

Introducing ASTM D2196 – Industrial Physics  

ASTM D2196 is an international ASTM test method for measuring the rheological properties of non-Newtonian materials using a rotational viscometer. 

The American Society for Testing Materials (ASTM) is one of the most influential standard bodies in existence. Established in 1898, ASTM international exists to develop standardized test methods, specifications, practices, guides, classification, and terminology across a range of subject areas. 

The ASTM D2196 test methods enable you to measure the apparent viscosity and the shear thinning and thixotropic properties of non-Newtonian materials. These are materials in the shear rate range from 0.1 s−1 to 50 s−1 using a rotational viscometer operating in a fluid contained in a 600 mL low form Griffin beaker. 

The ASTM D2196 viscosity testing methods 

There are three methods included in the ASTM D2196 viscosity testing standard. 

ASTM D2196 test method A determines the apparent viscosity at a given rotational speed, although viscosities at two or more speeds give better characterization of a non-Newtonian material than does a single viscosity measurement. 

Through ASTM D2196 test methods B and C, the extent of shear thinning is indicated by the drop in viscosity with increasing rotational speed. The degree of thixotropy is indicated by comparison of viscosities at increasing and decreasing rotational speeds (test method B), viscosity recovery (test method B), or viscosities before and after high shear (combination of methods B and C).  

The high-shear treatment in ASTM D2196 test method C indicates shearing during paint application. The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. 

Materials of the type described in this procedure may be quite non-Newtonian so the apparent viscosity will be a function of shear rate under the conditions of the test. While viscometers described for this test generally operate under conditions of relatively low shear rate, differences in shear effect can exist depending upon the spindle and rotational speed conditions selected. To achieve maximum correlation between laboratories, you’ll need to work with those who are testing under conditions of equivalent shear. 

Our ASTM D2196 viscosity testing equipment  

So, how can Industrial Physics improve your ASTM D2196 viscosity testing?  

Across the Industrial Physics portfolio of products, we have a wide range of viscosity testing devices and accessories.  

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Be sure to check out the full Industrial Physics range of viscosity testing test and measurement devices.  

Pouring out our viscosity testing know-how!  

We like to share our knowledge and experience with our customers. Across the knowledgebase section of this website you’ll find all sorts of blogs and articles on viscosity testing best practice.  

We like to share our knowledge and we’re here to help you to answer your questions about viscosity testing. Across the knowledgebase section of our website we publish lots of blogs on related subjects 

For example, there’s our advice on how to measure viscosity. We also hope that you find our viscosity calculator and viscosity conversion table helpful. 

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If you have any questions about ASTM D2196 or viscosity testing in general, then please just get in touch!

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