DIN EN ISO 12951:2015 纺织地板覆盖物. 用利森四脚踏轮机测定质量损失, 纤维结合和楼梯凸缘外观变化 (ISO 12951-2015); 德文版本EN ISO 12951-2015
Textile floor coverings - Determination of mass loss, fibre bind and stair nosing appearance change using the Lisson Tretrad machine (ISO 12951:2015); German version EN ISO 12951:2015