层压地板覆盖物.耐冲击性的测定

[中文适用范围]： 本文件规定了如何确定强化地板覆盖元件的抗冲击性。 所述测试测量表面层承受掉落在地板覆盖物上的小型和大型物体冲击的能力。 该测试通过模拟不同场景的一个小钢球和一个较大钢球对表面层的冲击来进行破坏性测试。 小钢球和大钢球的下落高度用于定义层压地板覆盖元件承受冲击的能力。 这两种测试通常都是在具有合适尺寸的强化地板镶板的部分上进行的。 大直径球法的精度尚不清楚。 当实验室间数据可用时，将在后续修订中添加精度声明。 小直径方法的精度在第 8 条中规定。 [外文原描述]： This document specifies how to determine the impact resistance of laminate floor covering elements. The test described measures the ability of the surface layer to withstand impact from both small and large objects dropped on the floor covering. The testing is destructive by means of the impact on the surface layer from one small and one larger steel ball simulating different scenarios. The falling height of both the small and the large steel ball is used to define the ability for a laminate floor covering element to withstand impacts. Both tests are generally carried out on parts of the laminate floor panels with suitable sizes. The precision of the large-diameter ball method is not known. When interlaboratory data become available, a precision statement will be added in subsequent revisions. The precision regarding the small diameter method is stated in Clause 8.