ASTM D2196 PDF
Designation: D – 99Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookﬁeld t. ASTM De1. Standard Test Methods for Rheological Properties of Non- Newtonian Materials by Rotational Viscometer. standard by. ASTM D Standard Test Methods for Rheological Properties of Non- Newtonian Materials by Rotational Viscometer.
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Testing equipment for ASTM D | Matest
The listed specifications apply to a typical instrument with spring mechanics and a classic cylinder or disc spindle in a large sample vessel. Link to Active This link will always route to the current Active version of ast, standard.
Rotational viscometers cover a very wide measuring range. The resulting wide gap between the bob and the vessel’s wall is assumed to be infinite.
Rotational viscometers are typically used for quality control. The high-shear treatment in Test Method C approximates shearing during paint application. Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated without temperature control. The degree of thixotropy is indicated by comparison of viscosities at increasing and decreasing rotational speeds Test Method Bviscosity recovery Test Method Aatmor viscosities before and after high shear combination of Test Methods B and C.
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Test Method A is used for determining the apparent viscosity at a given rotational d219, although viscosities at two or more speeds give better characterization of a non-Newtonian material than does a single viscosity measurement.
Historical Version s – view previous versions of standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Sample Typical sample volume for manual operation: Performance Rotational viscometers cover a very wide measuring range. Still, thermostat baths are available that can hold even a mL beaker.
Rotational viscometers are the widest spread viscometers on the market and can be found in more or less all industries independent of company size. Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application.
It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Rotational Viscometer / infinite-gap geometry :: Anton Paar Wiki
With Test Methods B and C, the extent of shear thinning is indicated by the drop in viscosity with increasing viscometer speed. The viscosity calculation is based on this assumption. Density Redefined Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: Historical Version s – view previous versions of standard Translated Version s: Results provide reasonable repeatabilty but the absolute precision is not reliable due to inadequate temperature precision.
The easy filling of a simple sample container and the fast d1296 easy exchange of the measuring bob make rotary viscometers the most versatile instruments, giving good results in various applications.
Viscosity measuring s2196 – for a model for medium viscosity materials, with several different spindles: We offer typical values which are based on the values in brochures and standards but are not related to specific instruments. D21996 spindle is suitable only for a part of c2196 model’s measuring range.
A great number of standards is available for rotational viscometers, among them for example: Each viscometer model comes with a number of different measuring spindles.
The values given in parentheses are for information only.
In addition, there are special sample adapters available for reducing the required sample volume, for extending the measuring range and for a wider temperature range.