Chemical engineering technician (excluding petroleum, natural gas and petrochemical) performs technical tasks, normally under the direction of a chemical engineer, contributory to development of processes for the chemical or physical transformation of substances on a commercial scale. He/she provides technical support and service to design, construct, operate, maintain and repair chemical plant. He/she exercises technical supervision and control of chemical processing operations, gives technical guidance to workers engaged in constructing, installing, maintaining and repairing chemical processing plant and ensures compliance with specifications and safety standards.