1. Conduct laboratory analytical work according to the unit action plan 2. Implement the quality management system according to ISO/IEC 17025; 3. Maintain the inventory of the laboratory equipment and other assigned assets; 4. Draft test methods of the laboratory based on international standards, guidelines or based principles of measurement science and techniques and submit to direct supervision for review and approval and ensure continued suitability of the developed methods; 5. Monitor maintenance plan of the laboratory standards; 6. Maintain the laboratory in a tidy and organized manner at all times. 7. Participate in the proficiency testing; 8. Prepare weekly, monthly, quarterly and annual reports and submit them to the immediate supervisor