Description: * CNH B; * Laboratory experience desirable; * Technical course in Chemistry, Sanitation or related areas; * Perform activities receiving instructions when necessary; * Participate in laboratory activities related to testing and quality inspection, research and development, and analysis of various substances; * Operate laboratory equipment for analysis and testing in quality control and assurance, as well as prepare reports describing results, detailing techniques and scientifically reporting structural performance, functionality, and chemical composition; * Perform medium-complexity water and/or effluent analyses; * Prepare materials and/or reagents; * Organize laboratory activities; * Reprogram sample collections.