1.1These test methods cover three approaches for determining yield stress of paints, inks and related liquid materials. The first method uses a rotational viscometer with coaxial cylinder or cone/plate geometry. The second method uses a rheometer operating in controlled stress mode with similar geometries. The third method uses a viscometer with a vane spindle
We know of no other standard for measurement of yield stress in these materials. The methods should be useful for Producers (formulators and problem solvers) and Users.
shear stress, rotational speed, shear rate
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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