DIN EN ISO 24342:2012 弹性和纺织品地板覆盖物.瓷砖的边长,边的平直度和方正度的测定(ISO 24342-2007).德文版本EN ISO 24342-2012
Resilient and textile floor-coverings - Determination of side length, edge straightness and squareness of tiles (ISO 24342:2007); German version EN ISO 24342:2012