life expectancy, LE

length of time that information is predicted to be retrievable in a system under appropriate storage conditions, as specified in ISO 18901
NOTE 1: LE designation is the rating for the life expectancy of recording materialength of time that information is predicted to be retrievable in a system under appropriate storage conditions, as specified in ISO 18901
NOTE 1: LE designation is the rating for the life expectancy of recording materials and associated retrieval systems.
NOTE 2: The number following the LE symbol is a prediction of the minimum life expectancy in years for which information can be retrieved without significant loss when properly stored under extended-term storage conditions, e.g. LE-100 indicates that information can be retrieved for at least 100 years of storage.
(SOURCE: JIS Z 6015:2022, 4.85)