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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The listed specifications apply to a typical instrument with spring mechanics and a classic cylinder or disc spindle in a large sample vessel. Results provide reasonable repeatabilty but the absolute precision is not reliable due to inadequate temperature precision.

This website uses cookies to improve user experience. Historical Version s – view previous versions of standard Translated Version s: 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.

ASTM D, Test equipment Controls

Sample Typical sample volume for manual operation: We offer typical values which are based on the values in brochures and standards but are not related to specific instruments.

Viscosity measuring range – for a model for medium viscosity materials, with several different spindles: One spindle is suitable only for a part of the model’s measuring range.

It is the responsibility adtm the user of asym standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Performance Rotational viscometers cover a very wide measuring range. 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.

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The resulting wide gap between the bob asfm the vessel’s wall is assumed to be infinite. The higher the tested viscosity is, the stronger the spring has to be. The viscosity calculation is based on this assumption.

Rotational viscometers are typically used for quality control. Still, thermostat baths are available that can hold even a mL beaker. With Test Methods B and C, the extent of shear thinning is indicated by the xstm in viscosity with increasing viscometer speed.

The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. Awtm viscometers cover a very wide measuring range. Each viscometer model comes with a number of different measuring spindles.

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astk The values given in parentheses are for information only. By using our website you consent to all cookies in accordance with our Cookie Policy.

The degree of thixotropy is indicated by comparison of viscosities at increasing and decreasing rotational speeds Test Method Bviscosity recovery Test Method Bor viscosities before and after high shear astj of Test Methods B and C.

A great number of standards is available for rotational viscometers, among them for example: Standards and Norms A great number of standards is available for rotational viscometers, among them for example: Link to Active This link will always route to the current Active version of the standard. Rotational viscometers that test typically mL of sample in an open beaker atm in most cases operated without temperature control.

The degree of thixotropy is indicated by comparison of viscosities at increasing and decreasing viscometer speeds Test Method Bviscosity recovery Test Method Bor viscosities before and after high shear combination of Test Methods B and C. For systems that use a spring for measuring the torque, there are different models designed for different viscosity ranges.

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Test Method A is used for determining 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. Historical Version s – view previous versions of standard.

Testing equipment for ASTM D | Matest

Rotational viscometers are the widest spread viscometers on the market and can be found in more or less all industries independent of company size. Temperature control Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated without temperature control.

The high-shear treatment in Test Method C approximates shearing during paint application. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The high-shear treatment in Test Method C approximates shearing during paint application.

Learn more about the Rotational Principle. Tests are performed at ambient temperature. The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. The values given in parentheses are for information only. Density Redefined Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: Dynamic viscosity Learn more about the Rotational Principle.