Apoyo en la confirmación del método demanda química de oxígeno (DQO) y verificación del método nitrógeno amoniacal en aguas de matriz ambiental en el laboratorio de análisis de aguas ECOSAM S.A.S.

Abstract

ECOSAM S.A.S´s water analysis laboratories develop activities concerning to all the processes related to the taking and analysis of water samples of different nature. These processes associate the respective classification of samples and measurement of parameters associated with physicochemical analysis that must meet the requirements of the quality management system based on the NTC-ISO / IEC 17025: 2005, a standard adopted by the laboratory. The analyzes carried out by the laboratory are mainly focused on the characterization of waste, surface and underground water meeting the demand of sectors such as academia, industry and community. As a strategic decision, ECOSAM´s laboratories decided to expand its service portfolio through the accreditation of its parameters. The present final report represents the results of the confirmation of the parameter Chemical Oxygen Demand (COD) and the verification of the conformation of Ammoniacal Nitrogen supported by the requirements of 5220 C and 4500-NH3 B, C of Standard Methods Edition 23, respectively. Each of these parameters were part of the center of the professional practice developed, estimating in each case the precision and accuracy of the method, as well as the uncertainty in the measurements in order to guarantee results with adequate traceability.