2153-23 — Chemical Analyst, industrial production
2153-11 — Chemical Engineer (General)
2153-12 — Chemical Engineer (Petroleum)
2153-14 — Chemical Engineer Drugs and Poisons
2153-16 — Chemical Engineer Fertilizer
2153-13 — Chemical Engineer Paints and Varnish
2153-15 — Chemical Engineer, Acids and Bases
2153-17 — Chemical Engineer, Cement Production
2153-22 — Chemical Laboratory Technologist
2153-27 — Chemical Technologist, Alcohol
2153-18 — Chemical Technologist, Beverages
2153-21 — Chemical Technologist, food
2153-26 — Chemical Technologist, Paper
2153-24 — Chemical Technologist, Plastics
2153-28 — Chemical Technologist, rubber
2153-25 — Chemical Technologists, fuel
2153-31 — Oil and Gas Technologist