Testing

Testing in plastics can be done on the plant floor to improve quality in molded or extruded parts, and off-line in the lab not only to check if parts are up to specification but also to evaluate the quality of incoming raw materials.

CP Cone, Plate Viscometers Built for Precision, Consistency
Testing

CP Cone, Plate Viscometers Built for Precision, Consistency

Units feature a robust direct drive motor and an electronic cone lift for precise and consistent results.  

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ESSENTIAL READING

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color

How to Optimize Color Evaluation of Recycled Plastics

The right color measurement instrument and good working methods will minimize variability in color evaluation of PCR.

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Testing

How to Improve Quality with Offline Inspection and Analysis

Automated sample testing with a light table detects the smallest contamination in flakes, micro granulates and sample test sheets.

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Testing

How to Create and Use Digital Color Standards for Plastics

Moving to a digital color workflow can help streamline production.  

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best practices

Take These Steps to Optimize Your MFR Data

Make your life easier by paying close attention to the procedural steps detailed in the test standards.

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Testing

Part 5: Heat Deflection Temperature vs. Dynamic Mechanical Analysis

In the final part of this five-installment series, we bring DMA to a practical level using the results for glass-filled nylon.

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Materials

Part 4: Heat Deflection Temperature vs. Dynamic Mechanical Analysis

The presentation of DMA data can sometimes frustrate users and discourage its adoption. Those unfamiliar with DMA should insist on receiving data relevant to the manner in which the part they are developing will be used.

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Latest Testing News And Updates

NPE

Measure Viscosity Precisely, Repeatably

NPE2024: The PVS viscometer from LAUDA Scientific is billed as the routine instrument for aggressive solvents in polymer chemistry.

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Testing

Height Gauge With Added Features and Accuracy

NPE2024: Mitutoyo America’s LH600F features a touchscreen interface that enables easy and intuitive operation.

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Testing

Updated Interactive Tool for Predicting Multilayer Film Performance

NPE 2024: NOVA Chemicals presents the latest enhancements to its Bonfire Multilayer Property Predictor and new Syndigo rPE portfolio

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NPE

Upgrade to Accelerated Artificial and Natural Weathering Testing

NPE2024: Atlas S³T system is designed for the company’s Weather-Ometer Ci4400 and Ci5000 instruments.

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NPE

Sensors Measure Moisture in PVB Films, Pellets

NPE2024: Noncontact sensors provide a continuous, reliable reading with zero drift and no maintenance.  

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Testing

Powerful and Versatile Infrared Spectrometer

Thermo Fisher Scientific’s Nicolet Apex FTIR is well suited for a wide range of applications including materials analysis.  

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Featured Posts

Testing

Tracing the History of Polymeric Materials -- Part 30: Polyurethane

In the world of polymers, polyurethane chemistry is probably the most versatile. This a resulted in a wide range of products made from these materials and given the industry the flexibility to respond to the progressive march of regulatory concerns.  

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Blow Molding

How Inline Vision Inspection Can Minimize Scrap in Molding

Once viewed by injection and blow molders as a necessary evil, machine vision technology today can continuously monitor and improve production while reducing costs.

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Testing

X-Ray Vision Inside Parts Gets More Affordable for Processors

Shimadzu’s new benchtop x-ray CT scanner provides internal and external metrology and flaw detection at a fraction of the previous cost.

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Testing

How to Improve Quality with Offline Inspection and Analysis

Automated sample testing with a light table detects the smallest contamination in flakes, micro granulates and sample test sheets.

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sustainability

Fast, Simple QC Method Directly Quantifies Recycled Content in Plastics

Novel fluorescence-based spin-out technology provides a rapid and reliable method to measure and certify recycled content in a wide range of plastics.

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Testing

How to Create and Use Digital Color Standards for Plastics

Moving to a digital color workflow can help streamline production.  

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New 2024 Twin Screw Report
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CM-26dG

FAQ: Testing

How to optimize color evaluation of recycled plastics?

Whether for resins with PCR content or for virgin resins, the keys to minimizing variability in your color evaluation are to use the right color-measurement instrument (spectrophotometer—benchtop or hand-held) and to create good working methods, that is, establishing a standard operating procedure (SOP).

If you use an extrusion plastometer (melt indexer) to test the melt-flow rate (MFR) of resins, you can make your life a whole lot easier by paying close attention to the procedural steps detailed in the test standards, to ensure accuracy, efficiency and smooth operation. This is true whether you are conducting occasional tests or running extensive automated testing in a lab setting. Many say they meet a published test standard, but in reality they are not following the test standard exactly as written.

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chemical foaming agents for molding and extrusion
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Glycon's DM2: The High Performance Feedscrew