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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Each viscometer model comes with a number of different measuring spindles. The values given in parentheses are for information only. 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. By using our website you consent to all cookies in accordance with our Cookie Policy. 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. 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. Anton Paar has once again redefined digital density 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 for example: Density Redefined Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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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.

A great number of standards is available for rotational viscometers, among them for example: The higher the tested viscosity is, the stronger the spring has to be.

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

The viscosity calculation is based on this assumption. The resulting wide gap between the bob and the vessel’s wall is assumed to be infinite.

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

Tests are performed at ambient temperature.

ASTM D2196-18e1

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

The values given in parentheses are for information only. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine astmm applicability of regulatory limitations prior to use.

Rotational viscometers cover a very wide measuring range. This website uses cookies to improve user experience.

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

Historical Version s – view previous versions of standard. The high-shear treatment in Test Method C approximates shearing during paint application.

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Learn more about the Rotational Principle. Temperature control Rotational viscometers that test typically mL of sample in an open beaker are in most cases operated without temperature 2d196. Viscosity measuring range – for a model for medium viscosity materials, with several different spindles: The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application.

For systems that use a spring for measuring the torque, there are different models designed for different viscosity ranges. Still, thermostat baths are available that can d296 even a mL beaker.

Rotational viscometers are typically used for quality control.

We offer typical values which are based on the values in brochures and standards but are not related to specific instruments. 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.

Performance Rotational viscometers cover a very wide measuring range.

Historical Version s – view previous versions of standard Translated Version s: Dynamic viscosity Learn more about the Rotational Principle. 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. Rotational viscometers are the widest spread viscometers on the market and can be found in more or less all industries independent of company size.

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