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MATERIALS | TESTING


Right: IdentiPol QA2 by Lacerta Technology is claimed to bridge the gap between QA and scientific DMA/DSC instruments


Below: Ametek’s CS2 Series force testers provide a low cost option for basic testing routines


then stored for comparison. This fingerprint is then automatically compared to previous results and a QIS value calculated. This is used to indicate the similarity of the test sample to a reference set. Also emphasising cost-effectiveness, Ametek says its CS2 Series force testers present a good option where accuracy, repeatability and docu- mentation of results are important. “They make plastic testing easy and offer a low-cost alternative when advanced material testing functionality is not required,” the company says. The CS2 Series instruments can perform most commonly used routines, ranging from basic static force testing to multi-stage, cyclic testing and more at what the company says is “a fraction of the cost of an advanced materials tester.” The machines can apply force in tension, compression, shear and flex, including multi-stage testing routines that comply with ISO and ASTM testing procedures. They feature a laptop console with a 9-inch touch-screen that displays graphical and tabular results; the user interface is said to be highly intuitive. Set-up parameters include limit testing (load, distance and time), break testing, cyclic and loop testing, multi-stage/user-defined testing, spring rate calculation and height measurement. CS2 Series models are available in a 1kN and a


5kN frame. The 1kN CS2-225 offers a large work area with a 180mm throat depth and 500mm of crosshead travel. The larger CS2-1100 offers a 150mm throat depth and an 800mm crosshead travel.


Tensile add-on Earlier this year, Instron debuted an enhanced version of its Torsion Add-On 2.0 for its universal testing machines. The new product converts axial-only testing machines into biaxial testing systems that the company says are capable of simulation of real-world use of products subjected to multi-axis loading. It can be fitted to any new or existing Instron 5940 or 5960 Series table-top universal testing machine and is said to meet the axial and torsional control requirements of common standards such as ISO 11040-4, ISO 80369, and ASTM F543.


The new hardware is controlled by two TestProfiler method types in Bluehill Universal testing software. Instron says TestProfiler provides simplified method development and intuitive control of the axial and torsional drives. Bluehill Universal is controlled with a touchscreen operator dashboard that mounts directly onto the test


80 COMPOUNDING WORLD | April 2019


machine. Calculations in Bluehill Universal now incorporate force, torque, displacement, and rotation measurements.


X-ray fluorescence Energy dispersive X-ray fluorescence (ED-XRF) systems are now offered by several companies, including Ametek, Malvern Panalytical, and Thermo Fisher Scientific. Speaking at the Polymer Testing & Analysis 2018 conference organised last September by Compounding World publisher AMI in Berlin, Germany, Dirk Wissmann from Spectro Analytical Instruments (part of Ametek’s Material Analysis Division), said the company’s ED-XRF instruments are now available as handheld, portable and laboratory units. Depending on the particular configuration, they can be used for bulk or small spot applications. These include process control applications (bulk analysis of stabilisers, fillers, pigments, flame retardants, and so on); compliance screenings; and analysis of inclusions. Wissmann said examples of process control applications include measurement of trace element content of titanium; medium content of TiO2


in ABS; content of copper iodide


stabiliser in polyamide (where he said that even at high concentrations of copper a good correlation can be achieved with good precision – Figure 1); medium content of CaCO3


in powders (with


simultaneous analysis of other fillers, pigments or flame retardants); and medium content of bromine in polystyrene. The equipment can be particularly useful for


RoHS compliance testing of recycled materials under the IEC 62321 standard, which provides test methods for determining levels of certain substances of concern in electrotechnical products. Also at the AMI conference, Michael Galla from


Sikora discussed the company’s Purity Concept systems, which can combine the advantages of an X-ray measuring system (Purity Concept X) with those of an optical light-table system (Purity


www.compoundingworld.com


PHOTO: AMETEK


PHOTO: LACERTA TECHNOLOGY


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