ISO 19604:2018规定了连续纤维增强陶瓷基复合材料（包括碳纤维增强碳基复合材料）在空气、真空和惰性气体环境中，在恒定拉伸载荷下高温下的应力断裂时间图的测定条件。 ISO 19604:2018适用于具有连续纤维增强体的所有陶瓷基复合材料:单向（1D）、双向（2D）和三向（xD，带2<；x≤ 3） ，沿钢筋的一条主轴加载。 注1:在大多数情况下，在空气中高温使用的陶瓷基复合材料都涂有抗氧化涂层。 注2:由于试验的主要目的是获得应力破裂时间数据，因此变形测量不是强制性的。

ISO 19604:2018 specifies the conditions for determination of the stress-rupture time diagram of continuous fibre-reinforced ceramic matrix composites (including carbon fibre-reinforced carbon matrix composite) at high temperature in air, vacuum and inert gas atmospheres under constant tensile loading. ISO 19604:2018 applies to all ceramic matrix composites with continuous fibre reinforcement: unidirectional (1D), bidirectional (2D) and tridirectional (xD, with 2 < x ≤ 3), loaded along one principal axis of reinforcement. NOTE 1 In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating. NOTE 2 Since the main purpose of the test is to obtain the stress-rupture time data, the deformation measurement is not mandatory.