Providing temporary use of non-downloadable software for customers to track and verify the amounts of refrigerants, other gases and liquids in containers and systems, optimize the use of refrigerants, other gases and liquids, determine when to transition, sell or retire refrigerants, other gases and liquids and collect data theron and generate reports and notifications; technical environmental advisory services in the field of managing refrigerants, other gases, and liquids in containers and systems and tracking and verifying the amounts of refrigerants, other gases and liquids in containers and systems, optimizing the use of refrigerants, other gases and liquids and determining when to transition, sell or retire refrigerants, other gases and liquids, and collecting data thereon and generating reports and notifications