Ventilation for Buildings - Ductwork - Requirements for ductwork components to facilitate maintenance of ductwork systems
建筑物通风 - 管道 - 管道系统组件的要求 以便维护管道系统
This European standard specifies requirements for dimension, shape and location for access panels for cleaning and service in ductwork systems, which conform to EN 1505, EN 1506 and EN 13180.
National regulations shall always be followed, even when they deviate from requirements given in this standard.