1.1本试验方法描述了一种实验室测量地板覆盖物在降低标准攻丝机通过混凝土地板产生的冲击噪声方面的有效性的方法。测试结果不一定与地板覆盖物的主观评估直接相关。 1.2本试验方法适用于安装在标准混凝土地板上的所有地板覆盖物，无论是单层还是多层。多层覆盖物可在工厂组装或在测试实验室组装。 1.3试验方法仅适用于实验室测量。它不适用于现场情况下地板覆盖物有效性的测量。 1.4 实验室认证 -方法E 492中给出了认证实验室执行本试验方法的程序。 1.5 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。

1.1 This test method describes a method for the laboratory measurement of the effectiveness of floor coverings in reducing impact noise from a standard tapping machine through concrete floors. The test results are not necessarily directly related to the subjective evaluations of the floor coverings. 1.2 This test method applies to all floor coverings, whether single or multi-layered, as installed on a standard concrete floor. Multi-layered coverings may be factory-assembled or assembled at the test laboratory. 1.3 The test method applies only to laboratory measurements. It does not apply to the measurement of the effectiveness of a floor covering in a field situation. 1.4 Laboratory Accreditation —A procedure for accrediting a laboratory for performing this test method is given in Method E 492. 1.5 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.