service life (3.38.1) that a building (3.7) or parts of a building would be expected to have in a set of specific in-use conditions (ISO 15686‑1:2011, 3.10), determined from reference service life data (ISO 15686‑1:2011, 3.23) after taking into account any differences from the reference in-use conditions (ISO 15686‑1:2011, 3.21)
