The quality of our products is an essential element in order to guarantee their excellent performance during the transformation processes they will be submitted to, and to satisfy our customer's requirements.

To ensure the final compliance of our products, they are submitted to several tests performed in the quality control laboratory in each stage of the polypropylene production process: production, homogenization and packaging; which are included in the "Polypropylene Analysis Quality Plan." In addition, such tests vary depending on the kind of resin that is produced: homopolymer, random copolymer and impact copolymer.

The quality control lab is equipped with various sate-of-the-art equipment (shown in the table attached) which in addition to being used for assessing resins during its production stage, they also provide technical support to customers. Special additional tests that lead us to the development of products or applications are performed in external labs which support technical services offered by PROPILVEN , S.A.

Equipment Test Extrusion Plastometers Melt Flow Index Viscometers   Color meter Whiteness level, yellow index Vibrator   Universal test machine Tensile properties  Impact meter Izod and Gardner Impact Resistance    Differential Scanning Calorimeter (DSC) Calorimetric curves - Thermal properties Injection machine Samples injection for tests and spiral flow measurements Compression presses Test samples molding On-line film extruder with fish eyes meter Film extrusion to measure gel / fish eyes content Gas Chromatography  (GC) Content of process gases (H 2 , CO, CO 2 , N 2 , etc.) Pre-polymerization equipment and bulk polymerization   Infrared spectrophotometer (FTIR) Infrared spectroscopy X-Rays Fluorescence Spectrophotometer  Quantification of catalytic residual: Al, Cl and Ti. Nuclear Magnetic Resonance (NMR) Rubber content (PER) in Block Copolymers FIPA Intrinsic viscosity