1.1本规程涵盖了在使用低压空气试验方法证明安装材料的完整性和施工程序时，测试混凝土污水管道的程序。本规程用于使用密封接头测试100至600 mm圆形混凝土污水管道。 1.2本规程也可用作初步试验，以使安装人员能够在回填之前证明管线的状况。 1.3本规程是规程C 924的SI配套规程。 笔记 1-建议本规程的用户，本规程中提出的空气试验标准与一般使用的标准类似。试验和标准已广泛成功地用于测试较小直径的管道，但需要额外的数据来确认安全性和适用性，或制定直径大于600 mm的管道的标准。通过目视检查和单独接头测试，可以更方便地接受较大的管道。 笔记 2-建议本规程的使用者，未发现空气损失和漏水之间存在相关性。 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和健康实践，并确定监管限制的适用性 （见第6节，安全预防措施）。 ====意义和用途====== 这不是例行测试。记录的数值仅适用于正在测试的下水道和测试时的下水道。

1.1 This practice covers procedures for testing concrete pipe sewer lines, when using the low-pressure air test method to demonstrate the integrity of the installed material and the construction procedures. This practice is used for testing 100 to 600-mm circular concrete pipe sewer lines utilizing gasketed joints. 1.2 This practice is also be used as a preliminary test to enable the installer to demonstrate the condition of the line prior to backfill. 1.3 This practice is the SI companion to Practice C 924. Note 1—The user of this practice is advised that air test criteria presented in this practice are similar to those in general use. The test and criteria have been used widely and successfully in testing smaller diameter pipe, but additional data are required to confirm the safety and applicability or develop criteria for pipe larger than 600 mm in diameter. Larger pipe will be accepted more conveniently by visual inspection and individual joint testing. Note 2—The user of this practice is advised that no correlation has been found between air loss and water leakage. 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 and health practices and determine the applicability of regulatory limitations prior to use (see Section 6, Safety Precautions). ====== Significance And Use ====== This is not a routine test. The values recorded are applicable only to the sewer being tested and at the time of testing.