1.1本试验方法包括通过测量模制试样在受到冲击时的塑性变形来测定耐火粘土和高铝塑性耐火材料的可加工性指数。 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 可加工性指数可作为衡量塑料耐火材料可被夯实、喷补或振动到位的设施的指标。 加工性指数通常用于控制制造过程中塑料的稠度。它也被发现有助于消费者接受规范。 可加工性指数的测定可以为开发塑料体提供信息。当样品在不同含水量的冲击下分裂时，表明材料 “ 短的 ” 或缺乏可塑性。 在撞击过程中分裂的样品的测定将难以再现。如果样品破裂，测量结果不是变形的真实指示。这应该在报告中指出。

1.1 This test method covers the determination of the workability index of fireclay and high-alumina plastic refractories by measuring the plastic deformation of a molded test specimen when subjected to impacts. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== Workability index serves as a measure of the facility with which plastic refractory materials can be rammed, gunned, or vibrated into place. Workability index is commonly used to control consistency of plastics during manufacture. It has also been found useful for specification acceptance by the consumer. The workability index determination can provide information for developing a plastic body. When a sample splits under impact at various water contents, it is an indication that the material is “ short ” or lacking in plasticity. Determinations on samples that split during impact will be difficult to reproduce. If the sample splits, the measurement is not a true indication of deformation. This should be noted in the report.