1.1 本试验方法涵盖了在使用真空试验方法证明安装材料的完整性和施工程序时，测试预制混凝土人孔部分的程序。本试验方法用于使用砂浆、胶泥或衬垫接缝测试混凝土人孔部分。 1.2 本试验方法旨在用作初步试验，以使安装人员能够在回填之前证明混凝土人孔的状况。特此提醒用户，误用或误用本文中包含的测试标准可能会对正在测试的系统造成永久性损坏。 注1: 本试验方法中提出的真空试验标准与一般使用的标准类似。该测试和标准已广泛成功地用于人孔测试。 注2: 建议本试验方法的用户，真空（空气）试验和静水压试验之间没有相关性。 1.3 以英寸-磅或国际单位制表示的数值应单独视为标准值。国际单位制显示在括号中。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。 将两个系统的值合并可能会导致不符合标准。 1.4 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、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 这不是例行测试。记录的值仅适用于正在测试的人孔和测试时的人孔。

1.1 This test method covers procedures for testing precast concrete manhole sections when using the vacuum test method to demonstrate the integrity of the installed materials and the construction procedures. This test method is used for testing concrete manhole sections utilizing mortar, mastic, or gasketed joints. 1.2 This test method is intended to be used as a preliminary test to enable the installer to demonstrate the condition of the concrete manholes prior to backfill. Users are hereby cautioned that misuse or misapplication of the test criteria contained herein can cause permanent damage to the system being tested. Note 1: Vacuum test criteria presented in this test method are similar to those in general use. The test and criteria have been widely and successfully used in testing manholes. Note 2: The user of this test method is advised that no correlation has been found between vacuum (air) and hydrostatic tests. 1.3 The values stated in inch pound or SI units are to be regarded separately as standard. The SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4 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. 1.5 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 ====== 5.1 This is not a routine test. The values recorded are applicable only to the manhole being tested and at the time of testing.