该文件确立了通过保护、修复或特定无障碍需求产生的干预措施提供不可移动文化遗产无障碍的标准和方法。适用于不可移动文化遗产及其设置。它不适用于与保护、恢复或具体无障碍干预措施没有直接关系的一般管理、组织和其他功能性方面。本文件旨在供遗产所有者和管理者（私人或公共）、策展人、无障碍专业人员、保护和修复专业人员、建筑师、工程师、设计师、用户代表和建筑商使用。ISO 21542涵盖了与无障碍建筑环境的设计和施工方面相关的要求和建议。

This document establishes criteria and a methodology for providing accessibility to immovable cultural heritage through interventions arising from conservation, restoration or specific accessibility needs. It is applicable to immovable cultural heritage and its setting. It is not applicable to general management, organizational and other aspects of a functional nature that are not directly related to the conservation, restoration or specific accessibility interventions. This document is intended to be used by heritage owners and managers (both private or public), curators, accessibility professionals, conservation and restoration professionals, architects, engineers, designers, user representatives and builders. Requirements and recommendations related to the design and constructional aspects of an accessible built environment are covered by ISO 21542.