Workers in this unit group conduct research in such fields as organic, inorganic, physical and analytical chemistry. Their functions include: conducting pure research to increase scientific knowledge in the field of chemistry; conducting applied research and development work to test, develop and improve materials, products and industrial processes; performing chemical tests and analyses for process and quality control; developing analytical methodology and techniques. Metallurgists are classified in unit group 0-26, Biochemists and Pharmacologists in 0-52 and Pharmacists in 0-67.