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Procedures

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Thermogravimetric Analysis - TGA

A thermal analysis procedure that measures weight loss as a function of temperature in a controlled environment. The temperature points at which active components volatilize are plotted, creating a graph that quantifies the composition of the material. learn more

Microstructural Analysis-MSA

A failure analysis technique that involves the observation of a thin cross section of a sample under a compound polarizing light microscope. A trained eye can detect patterns of stress, irregularities in the microstructure, contaminants, voids, and design flaws. An integral, high-resolution camera provides a permanent record of the evaluation.

Differential Scanning Calorimetry-DSC

A thermal analysis procedure that measures the rate of heat flow. DSC charts the difference between the rate of the test sample and that of a known reference material. This difference is useful in determining variations in composition and in measuring the degree of crystallinity and oxidation. learn more

Fourier Transform Infrared Spectrometry-FTIR

Defines the chemical composition of a sample by the amount of infrared light that is transmitted through or absorbed by the sample. The resulting spectral analysis is used to identify resins, to identify and quantify additives, and to determine the presence of copolymers. learn more

Ash content / Burn-off Testing

A direct procedure for isolating non-combustible elements, such as glass and minerals, in a resin sample. The resin is burned off, leaving behind the identifiable and measurable inorganic material.

Melt Flow Index-MFI

Also referred to as melt flow rate (MFR) or melt volume flow rate (MVR). Measures the viscosity of a polymer through a glass orifice at a constant temperature. Differences in these rates are used to flag lot-to-lot variations and to detect degradation caused by processing.

Dilute Solution Viscosity

Measures the relative viscosity (RV) and/or the viscosity number (VN) of a polymer through dilute solution methodology. Incoming quality assessments as well as degradation determinations can be made with this technique.

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