标准摘要
[中文适用范围]： ISO 1209 的这一部分规定了一种评估刚性泡沫塑料棒在三点弯曲作用下的性能的简单方法。 它可用于确定——指定变形的载荷； - 或断裂负载。 ISO 1209 本部分规定的方法版本使用小型测试样本，不产生纯弯曲。 因此，它不允许计算弯曲强度或表观弯曲模量（弹性模量）。 用户可参考 ISO 1209-2 来确定这些参数。 该方法不适用于观察到明显破碎的泡沫塑料。 仅当在具有相似物理特性和尺寸的材料上确定时才应比较数值。 该方法仅限于厚度为20mm或以上的材料。 [外文原描述]： ISO 1209-1:2007 specifies a simple method for assessing the behaviour of a bar of rigid cellular plastic under the action of three-point bending. It may be used to determine either the load for a specified deformation or the load at break. The version of the method specified uses small test specimens and does not produce pure bending. Hence it does not permit the calculation of the flexural strength or the apparent flexural modulus (modulus of elasticity). The user is referred to ISO 1209-2 for the determination of these parameters. The method is not applicable to cellular plastics in which significant crushing is observed. Numerical values should be compared only when determined on materials of similar physical properties and dimensions. The method is limited to materials of 20 mm thickness or greater.
英文名称Rigid cellular plastics — Determination of flexural properties — Part 1: Basic bending test