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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 higher the tested viscosity is, the stronger the spring has to be. For systems that use a spring for measuring the torque, there are different models designed for different viscosity ranges. The viscosity behavior measured asm high shear is indicative of the characteristics of the paint soon after application.

A great number of standards is available for rotational viscometers, among them for example: 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. Performance Rotational viscometers cover a very wide measuring range. Historical Version s – view previous versions of standard. Density Redefined Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: D196 control Rotational viscometers that test typically mL of sample in an astk beaker are in most cases operated without temperature control.

We offer typical values which are based on the values in brochures and standards but are not related to specific instruments. Rotational viscometers are typically used for quality control. The listed specifications apply to a typical instrument with spring mechanics and a classic cylinder or disc spindle in a large sample vessel.

With Test Methods B and C, the extent of shear thinning is indicated by the drop in viscosity with increasing viscometer speed. 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.

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The values given in parentheses are for information only. Link to Active This link will always route to the current Active version of the standard. One spindle is suitable only for a part of the model’s measuring range.

Learn more about the Rotational Principle. The viscosity calculation is based on this assumption. Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated without temperature control. Dynamic viscosity Learn more about the Rotational Principle. Each viscometer model comes with a number of different measuring spindles.

SEARCH : ASTM D2196

Rotational viscometers cover a very wide measuring range. 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.

The high-shear treatment in Test Method C approximates shearing during paint application. Test Method Asstm 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. 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 combination of Test Methods B and C.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Still, thermostat baths are available that can hold even a mL beaker.

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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 D196 C approximates shearing during paint application.

The resulting wide gap between the bob and the vessel’s wall is assumed to be infinite. Historical Version s – view previous versions of standard Translated Version s: The viscosity behavior measured after high shear is indicative of the characteristics of the paint d216 after application.

ASTM D 转动粘度计(Brookfield型)法测定非牛顿材料的流变性质的标准试验方法 标准

Anton Paar has once again redefined digital density measurement with the v2196 invention of a new measuring principle: The values given in parentheses are for information only. Sample Typical sample volume for manual operation: Tests are performed at ambient temperature.

Results provide reasonable repeatabilty but the absolute precision is not reliable due to inadequate temperature precision.

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. 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.

Standards and Norms A great number of standards is available for rotational viscometers, among them for example: This website uses cookies to improve user experience.