42 Scientific and technological services, namely, scientific research and development; scientific and technological evaluation services, namely, testing, analysis, and evaluation of the goods of others to assure compliance with industry standards; engineering consulting; technological consulting in the technology field of electrical systems, control systems, automation systems, power plants, oil and gas equipment, machines and machine tools, and systems for heating, ventilation, air-conditioning, production and distribution of electricity and of computer hardware and computer software; industrial analysis services in the field of electrical systems, control systems, automation systems, power plants, oil and gas equipment, machines and machine tools, and systems for heating, ventilation, air-conditioning, production and distribution of electricity and of computer hardware and computer software