ISO 9000 is a quality system standard, not a technical product standard. The ISO 9000 series currently contains four standards - ISO 9001, ISO 9002, ISO 9003 and ISO 9004. Firms select the standard that is most relevant to their business activities.

ISO 14000 refers to a series of standards on environmental management tools and systems. ISO 14000 deals with a company's system for managing its day-to-day operations and how they impact the environment.

I hope my answer helps. All the very best for your future endeavors!