1.1 本试验方法描述了一种测定硬质多孔材料，特别是膨胀塑料压缩性能的程序。 1.2 以国际单位制表示的数值应视为标准。括号中的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 注1: 此测试方法和ISO 844在技术上是等效的。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 该测试方法提供了关于蜂窝材料在压缩载荷下的行为的信息。 获得测试数据，并从完整的载荷-变形曲线中，可以计算任何载荷下的压缩应力（如比例极限载荷下的压应力或最大载荷下的抗压强度），并计算有效弹性模量。 4.2 压缩测试提供了一种标准的方法，用于获取研究和开发、质量控制、规范下的验收或拒收以及特殊用途的数据。在与负载差异很大的应用中，这些测试不能被认为对工程设计具有重要意义- 标准测试的时间尺度。此类应用需要额外的测试，如冲击、蠕变和疲劳。 4.3 在进行本试验方法之前，应参考被试验材料的规范。材料规范中涵盖的任何试样制备、处理、尺寸或试验参数，或其组合，应优先于本试验方法中提及的试样。如果没有材料规格，则应用默认条件。

1.1 This test method describes a procedure for determining the compressive properties of rigid cellular materials, particularly expanded plastics. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: This test method and ISO 844 are technically equivalent. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 This test method provides information regarding the behavior of cellular materials under compressive loads. Test data is obtained, and from a complete load-deformation curve it is possible to compute the compressive stress at any load (such as compressive stress at proportional-limit load or compressive strength at maximum load) and to compute the effective modulus of elasticity. 4.2 Compression tests provide a standard method of obtaining data for research and development, quality control, acceptance or rejection under specifications, and special purposes. The tests cannot be considered significant for engineering design in applications differing widely from the load - time scale of the standard test. Such applications require additional tests such as impact, creep, and fatigue. 4.3 Before proceeding with this test method, reference shall be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or a combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.