In order to be able to control and guarantee the quality of end products or to solve compound related issues, J&J Plastics uses a number of annalistic methods as described in this article. As may be expected we perform these tests correctly, but even more important is that we analyze the results ‘the right way’ and can provide a solid advice based upon the outcome.

	FTIR: Fourier Transform Infrared Spectroscopy. This infrared spectrometric method is used to identify Polymer structures. Every polymer has a characteristic ‘fingerprint’.  Infrared Spectroscopy is used to identify the Polymer and to determine the functional groups the Polymer consists of. This technique is commonly used for research and quality control.
	DSC: Differential Scanning Calorimetry. This technique is used to characterize polymers by studying the melting behavior, the glass transition region, the melting region and the crystalline melting point.
	Rheology: Study of material flow behavior; for instance polymers under shear and temperature influences. The resistance of a melt to applied forces is determined by performing a range of apparent viscosity measurements at various process temperatures and crosshead speeds. This technique is used to predict polymer behavior in extrusion or molding processes.
	ROI:Residu on Ignition. Analyzing method used to determine the purity of a polymer, by heating a sample to ash and analyzing the residue. This method is used for compound quality control and development purposes.