Actualización e implementación del procedimiento, trazabilidad y manejo de materiales de referencia, bajo los lineamientos de la norma NTC-ISO/IEC 17025:2017 “Requisitos Generales de Competencia de Laboratorios de Ensayo y Calibración”.

Abstract

In order to study the quality of the results obtained in a physicochemical analysis procedure, it is necessary to monitor the traceability of the results from the verification of reference material, this being a homogeneous and stable component with respect to its specific properties that allows its intended use in a measurement. Therefore, in the water analysis laboratory ECOSAM S.A.S., the verification of reference material was performed for each physicochemical study requested (physical properties, inorganic and organic constituents, metals and non-metals), maintaining the value of the magnitude assigned to the reference standard, confronting the information obtained with the guidelines established by the Standard Methods for the examination of water and wastewater 23rd edition. To study the quality of the results obtained in the analysis of each parameter, a follow-up was made from its method control (fortified blank) with a known concentration and the relevant physicochemical characteristics of the reference materials to be used, resulting in great assertiveness in complying with the guidelines of the parameters to be analyzed; from the traceable reference material reagents to the requirements stipulated in the validation of the method in the laboratory and certified reference material according to the standards of the National Institute of Standards and Technology (NIST).