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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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.

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

Learn more about the Rotational Principle. Performance Rotational viscometers cover a very wide measuring range.

The viscosity calculation is based on this assumption. With Test Methods B and C, the extent of shear thinning is indicated by the drop in viscosity with increasing viscometer speed.

It is the responsibility of the user of this standard to establish d21996 safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Historical Version s – view previous versions of standard. One spindle is suitable only for a part of the model’s measuring range.

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.

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

ASTM D2196-18e1

Still, thermostat baths are available that can hold even a mL beaker. Link to Active This link will always route to the current Active version of the standard.

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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. 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. By using our website you consent to all e2196 in accordance with our Cookie Policy.

In addition, there are special sample adapters available for reducing the required sample asfm, for extending the measuring range and for a wider temperature range. The degree of thixotropy is indicated by comparison of viscosities at increasing and decreasing rotational speeds Test Method B satm, viscosity recovery Test Method Bor viscosities before and after high shear combination of Test Methods B and C.

Tests are performed at ambient temperature. The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application. Each viscometer model comes with a number of different measuring spindles.

ASTM D, Test equipment Controls

Rotational viscometers are the widest spread viscometers on the market and can be found in more or less all industries independent of company size. Results provide reasonable repeatabilty but the absolute precision is not reliable due to inadequate temperature precision. A great number of standards is available for rotational viscometers, among them for example: Sample Typical sample volume for manual operation: 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.

Dynamic viscosity Learn more about the Rotational Principle. Rotational viscometers are typically used for quality control. 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 higher the tested viscosity is, the stronger the spring has to be. The values given in parentheses are for information only.

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This website uses cookies to improve user experience. The high-shear treatment in Test Method C approximates shearing during paint application.

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: Referenced Documents purchase separately The documents listed below are astn within the subject standard but are not provided as part of the standard.

We offer typical values which are based on the values in brochures and standards but are not related to specific instruments. The c2196 given in parentheses are for information only. The viscosity behavior measured after high shear is indicative of the characteristics of the paint soon after application.

Standards and Norms Axtm great number of standards is available for rotational viscometers, among them for example: The r2196 wide gap between the bob and the vessel’s wall is assumed to be infinite. Rotational viscometers cover a very wide measuring range. Anton Paar has once again redefined digital density measurement with the groundbreaking invention of a new measuring principle: For systems that use a spring for measuring the torque, there are different models designed for different viscosity ranges.

Viscosity measuring range – for a model for medium viscosity materials, with several different spindles:

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