Environmental engineering, testing and inspection services; Testing, analysis and evaluation of the services of others for the purpose of certification; Testing, analysis and evaluation of the services of others to assure compliance with industry standards; Testing, analysis and evaluation of services of others to assure compliance with (a) heating, ventilation and air conditioning, (b) commissioning and retro-commissionaing of commercial building systems, (c) sound and vibration, (d) commercial building envelope, (e) laboratory fume hood, (f) electronic and biological cleanroom, and (g) other NEBB environmental performance industry standards