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ASTM C1920-21

Standard Practice for Cleaning of Vitrified Clay Sanitary Sewer Pipelines

1.1This practice covers the personnel requirements, operator training, operating procedures, and recommended equipment performance/design for the proper operation of pressure water-jet cleaning and cutting equipment as normally used by municipalities and contractors concerned with operations, maintenance and cleaning work of vitrified clay mainline sewer pipe.

1.2The term "high-pressure water jetting" covers all water jetting, including the use of jets and hydromechanical tooling at pressures above 2000 psig (0.69 MPa).

1.3This practice covers the "high-pressure water jetting" of vitrified clay pipe and should not be applied to other pipe and pipe lining materials without evaluating the recommended cleaning procedure from the manufacturer to avoid damage.

1.4Units - The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.5This 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.

1.6This 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.


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