#Specific viscosity units manuals

The next step is to gather preliminary rheological data to determine what type of flow behavior is characteristic of the system under consideration. For the moment, assume this information is known and several possibilities have been identified. To begin, consider the question, 'Can some rheological parameter be employed to correlate with an aspect of the product or process?' To determine this, an instinct must be developed for the kinds of chemical and physical phenomena which affect the rheological response. They are also a way to predict and control a host of product properties, end use performance and material behavior. Rheological measurements allow the study of chemical, mechanical, and thermal treatments, the effects of additives, or the course of a curing reaction. Such measurements can be employed as a quality check during production or to monitor and/or control a process. Rheological measurements are also useful in following the course of a chemical reaction. This relationship is useful in polymer synthesis, for example, because it allows relative differences to be seen without making molecular weight measurements. It has been suggested that rheology is the most sensitive method for material characterization because flow behavior is responsive to properties such as molecular weight and molecular weight distribution. Knowing its rheological behavior, therefore, is useful when designing pumping and piping systems. For example, a high viscosity liquid requires more power to pump than a low viscosity one. For this purpose, flow behavior is an indirect measure of product consistency and quality.Īnother reason for making flow behavior studies is that a direct assessment of processability can be obtained. We have the requisite 'know how and experience' to be your partner in the selection of proper instrumentation to control your process.Īnyone beginning the process of learning to think Rheo-Logically must first ask the question, 'Why should I make a viscosity measurement?' The answer lies in the experiences of thousands of people who have made such measurements, showing that much useful behavioral and predictive information for various products can be obtained, as well as knowledge of the effects of processing, formulation changes, aging phenomena, etc.Ī frequent reason for the measurement of rheological properties can be found in the area of quality control, where raw materials must be consistent from batch to batch. This places the instrument user in a position in which his own appreciation of the flow phenomena involved, coupled with the instrument manufacturer's 'know how and experience', must be brought to bear.īrookfield was a pioneer in the development of instrumentation for viscosity measurement and data handling and a stimulus to the development of the science. Today's instruments vary from the simple to the complex: from counting the seconds for a liquid to drain off a stick to very sophisticated automatic recording and controlling equipment. The selection of the right viscometer from the scores of instruments available to meet the need of any application is a difficult proposition. There are many different techniques for measuring viscosity, each suitable to specific circumstances and materials. Rheological relationships help us to understand the fluids we are working with so that we can either know how they are behaving or force them to behave according to our needs. They know that viscosity measurements are often the quickest, most accurate and most reliable way to analyze some of the most important factors affecting product performance. Many manufacturers now regard viscometers as a crucial part of their research, development, and process control programs. Anyone involved with flow characterization, in research or development, quality control or fluid transfer, at one time or another gets involved with some type of viscosity measurement. Viscosity measurements are made in conjunction with product quality and efficiency. Brookfield deals with liquids and semi-solids. Viscosity is a principal parameter when any flow measurements of fluids, such as liquids, semi-solids, gases and even solids are made.

#Specific viscosity units manuals

Manuals for Legacy Computrac and Jerome Instrumentsįind Viscosity-related information at AMETEK Brookfield Customer Learning Center.Manuals for Currently Released Computrac and Jerome Instruments.Certifications for Computrac and Jerome Products.Cone Plate Wells Brookfield Spindles Cups.DVNext Rheometer with Gel Timer Functionality.