Estudo sobre repetitividade e reprodutividade para produtos do laboratório piloto de química industrial

Abstract

With the diversity of detergents being manufactured in the Pilot Laboratory of Industrial Chemistry (PLIC), it is wanted to know if these products are being well elaborated and if their viscosities are correct according to the established legislation. Specification as viscosity based on Chemical Safety Data Sheet (CSDS) for high production line products. It is expected to evaluate these particularities through a study on Repeatability and Reproducibility (R&R) that will help to find out if there is variability in the detergent batch measurement system produced by the Federal University of Paraíba (FUPB), in which volunteer students assist in the preparation of detergents. This study aims to analyze the sources of variations associated with the measurement processes in laboratory detergent production, by measuring important parameters with the same operator and different operators measuring the same product several times. From the obtained results it was possible to see that in the detergent viscosity measurements there were no repeatability problems, but there were reproducibility problems, identified through the graphs of the operator averages, interaction * operator and Rchart and it was possible to solve such problems. suggest solutions that operators could avoid in future work beyond applying them to PLIC.