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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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. The high-shear treatment in Test Method C approximates shearing during paint application. Axtm 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.

Learn more about the Rotational Principle.

Rotational Viscometer / infinite-gap geometry :: Anton Paar Wiki

Link to Active This link will always route to the current Active version of the standard. We offer typical values which are based on the values in brochures and standards but are not related to specific instruments. With Test Methods B sstm C, the extent of shear thinning is indicated by the drop in viscosity with increasing viscometer speed.

By using our website you consent to all cookies in accordance with our Cookie Policy. The viscosity calculation is based on this assumption.

ASTM D2196-18e1

Each viscometer model comes with a number of different measuring spindles. Performance Rotational viscometers cover a very wide measuring range.

Historical Version s – view previous versions of standard. Anton Paar has once again redefined digital ast measurement with the groundbreaking invention of a new measuring principle: Standards and Norms A great number of standards is available for rotational viscometers, among them zstm example: The values given in parentheses are for information only.

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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 combination of Test Methods B and C.

ASTM D, Test equipment Controls

The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. Rotational viscometers cover a very wide measuring range.

The listed specifications apply to a typical instrument with spring mechanics and a classic cylinder or disc spindle in a large sample vessel. Temperature control Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated asgm temperature control.

The higher the tested viscosity is, the stronger the spring has to be.

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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided d21966 part of the standard. Density Redefined Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: This website uses cookies to improve user experience.

The easy filling of a simple sample container and the fast and easy exchange of the measuring bob make rotary viscometers the most versatile instruments, giving good results in various applications. The values given in parentheses are for information only. The aatm wide gap between the bob and the vessel’s wall is assumed to be infinite. A great number of standards is available for rotational viscometers, among them for example: One spindle is suitable only for a part of the model’s measuring range.

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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 axtm C. Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated without temperature control. Rotational viscometers are typically used for quality control.

Viscosity measuring range – for a model for medium viscosity materials, with several different spindles: Rotational viscometers are the widest spread viscometers on the market and can be found in more or less all industries independent of company size.

For systems that d1296 a spring for measuring the torque, there are different models designed for different viscosity ranges. The high-shear treatment in Test Method C approximates shearing during paint application.

aetm Sample Typical sample volume for manual operation: The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. Dynamic viscosity Learn more about the Rotational Principle. Still, thermostat baths are available that can hold even a mL beaker. It is the responsibility of the user of this standard to establish appropriate safety and ast, practices and determine the applicability of regulatory limitations prior to use.

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. Tests are performed at ambient temperature.