定义模块化楼层平面的三个位置作为建筑设计中垂直模块化尺寸的基准面，并给出与该平面相关的楼层位置规则。适用于按照ISO 2848规定的模块化协调原则和规则设计的所有类型建筑的施工。

Defines three positions of the modular floor plane as reference plane for vertical modular dimensions in building design and gives rules for the position of the floor in relation to this plane. Applies to the construction of buildings of all types designed in accordance with the principles and rules of modular coordination as laid down in ISO 2848.