AS/NZS ISO 19426.1:2023 identically adopts ISO 19426 1:2018, which specifies the terms and definitions related to the structures for mine shafts, used throughout the ISO 19426 series. Terms used in mining can vary from conventional engineering usage, and they vary quite considerably between different countries. For this reason, alternative terms are provided in many of the entries. The preferred terms, given in bold type, are those used throughout the ISO 19426 series.