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Anton Paar Focus Page


State of the Art Density Meters: Highest Levels of User Comfort and Operator Safety


Two ASTM standards specify conditions for density measurements in the lab by means of a digital density meter: ASTM D4052 for petroleum products and lubricating oils, and ASTM D5002 for crude oils.


To achieve accurate density results with minimum effort according to these standards, it is useful to have a density meter which provides automatic viscosity correction and full-range temperature adjustment. Density meters with a reference oscillator need only one density adjustment to provide density results across the whole range of measuring temperatures. The advantage of borosilicate glass oscillating U-tube density meters is that the sample is visible for observing the filling process, so any gas or air bubbles can be seen. With high-end density meters, an intelligent bubble detection feature (physical method) serves as additional verification of bubble-free filling. DMA Generation M density meters, from Anton Paar provide these state-of-the-art measuring technologies, utmost levels of reliability, accuracy as well as assistance to


operators dealing with many different measurements at one time.


Density values automatically converted into relevant quantities, namely specific gravity (SG), API values in accordance with ASTM D1250 (standard guide for use of the petroleum measurement tables).


Live camera image (or inspection window) ensuring bubble-free filling that is ideally assisted by the instrument’s advanced analysis to detect filling errors.


Possibility to check the purity of the used reagents by determining the density and comparing it to the target value. Temperature stability and one adjustment for the whole temperature range – as can only be achieved by a built-in reference oscillator.


New Sample Preparation Method for Determining Salinity in Petrochemicals


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Experience Unlimited Possibilities with New Microviscometer


High Fuel Performance with Tribologically Optimised Additives


Fuel has to meet very high expectations regarding lubricity and wear protection. As films are thin due to the low viscosity of fuels, additives are needed that protect surfaces from wear under disadvantageous conditions like a sudden increase of pressure or a start/stop situation. An efficient way to evaluate the performance of additives under crucial conditions is model tribology testing.


MCR tribometers allow for convenient, fast, precise and highly reproducible measurements. Benefit from superior environmental control with a temperature range from –130 °C to 620 °C and humidity control between 5 % and 95 % relative humidity. An evaporation blocker and environmental control ensure reproducible and accurate measuring conditions. Determine static friction with unmatched precision to evaluate fuels’ start-stop performance. Use the unique possibilities of the ball-on-three-plates setup to evaluate your fuel additives by Stribeck curves, static friction (including break-away torque), or apply specific motion profiles. Reveal the critical regimes where additives perform and for which they require optimisation. A motion control covering 9 decades in speed and deflection allows for determinations of Stribeck curves to reveal static friction and film formation properties in one single measurement. Optimise your additives in accordance with your application needs, saving time and money with model tribology from Anton Paar.


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Rheological Testing of GTR Modified Asphalt Binder A concept of


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Do you want to process all kinds of petrochemical samples? Do you have problems with samples of high viscosity and high water content? Are you looking for a more efficient extraction method? Do you require repeatable and reproducible measuring results? Do you want to substantially reduce your organic solvent usage? If the answer to one or more of these questions is YES, Anton Paar has the perfect solution for you:


Multiwave PRO, the master of sample preparation methods, enables microwave-assisted extraction in high pressure vessels. In contrast to conventional methods (ASTM D-6470, D-3230, IP 77/72), the extraction temperatures are not limited to the boiling point of the solvent mixture, which exponentially improves the efficiency of the extraction and significantly reduces process times. Efficient heating and sample agitation enables complete chloride extraction, e.g. of bitumen and crude oil samples with varying viscosities and water contents. The reaction parameters such as temperature and pressure are fully controlled and documented. For maximum safety Multiwave PRO with Rotor 8NXQ80, supplied with eight quartz glass vessels, is capable of simultaneous pressure measurement on all reaction vessels. In this way the rotor proactively detects any pressure increase and takes suitable action to keep it within safe limits. With maximum operating conditions of 300 °C and 80 bar simultaneously, this configuration is suitable for processing the widest range of petrochemical samples.


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Lovis 2000 M/ME, from Anton Paar, the most versatile high- end rolling ball microviscometer on the market, has now been enriched by another feature: Besides the classical capillaries made of high quality borosilicate glass, the product portfolio has now been extended by capillaries made of PCTFE. Although glass offers many advantages for measurements like a smooth material surface, easy cleaning, transparency and more, it is not the perfect solution for all applications. As soon as you are interested in measuring highly aggressive liquids such as concentrated bases or hydrofluoric acid you will face the limits of the material. The glass surface will be attacked and sooner or later your capillary will be destroyed. To bridge this gap, Anton Paar has developed capillaries made of PCTFE. With these brand new break-proof capillaries you can measure almost every liquid, no matter how corrosive, aggressive or hazardous the sample is. Even hydrofluoric acid can be measured with the accuracy and benefits of a state-of-the-art viscometer. Critical samples can be filled in a glove box into the 100% hermetically sealed and break-proof capillaries and handled without any risk to health or environment.


Lovis 2000 M/ME gives you deep insights into the viscosity of even the most critical liquids, providing an accuracy up to 0.5 % and a repeatability up to 0.1 %.


The PCTFE capillaries are now available for manual filling and automation, facilitating viscosity determination starting from sample volumes of 110 µL only.


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AUGUST / SEPTEMBER • WWW.PETRO-ONLINE.COM


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growing popularity in many parts of the world is the addition of recycled ground tire rubber (GTR) to asphalt binder. Due to the particle size of the used GTR


a variety of problems can occur during a measurement with a dynamic shear rheometer (DSR) equipped with plate-plate geometries, e.g. no laminar flow conditions, sagging effects and temperature gradients.


Anton Paar’s SmartPave DSR is equipped with a completely new and unique air-cooled Peltier heating system with a specially designed concentric cylinder geometry. Sagging effects and temperature gradients are completely eliminated and the heating and cooling rates are unbelievably fast. The user-friendly rheometer software has been designed specifically for the needs of the asphalt industry. To ensure that the used measuring temperature is correct, SmartPave and its software also feature an automatic temperature calibration.


With SmartPave, the rheological analysis (flow behavior, elasticity, loading and temperature dependence) of ground tire modified asphalt binder is comfortable and easy, taking rheological tests on modified bitumen to previously unattained levels of convenience and reliability.


Due to the versatility and modularity of SmartPave, all tests used in modern rheology today can be performed. The system’s broad torque range and true stress and strain capabilities allow for adjustment of the measurements to special needs. That’s why SmartPave is ready to handle all future demands like changing asphalt test specifications, which makes this rheometer a safe long-term investment.


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