ASTM F3058-16(R2021) pdf free download

ASTM F3058-16(R2021) pdf free download.Standard Practice for Preliminary Field Testing of Thermoplastic Pipe Joints for Gravity Flow (Non-Pressure) Sewer Lines
1. Scope
1.1 This practice covers procedures for testing single joints of thermoplastic pipe for gravity flow (non-pressure) sewer lines, when using either air or water under low pressure to demonstrate the integrity of the joint. This practice is used for testing 27 in. (675 mm) and larger inside diameter PVC (Poly- vinyl Chloride), HDPE (High Density Polyethylene) and PP (Polypropylene) sewer lines utilizing flexible gasketed joints with elastomeric seals, Specification F477. 1.2 This practice is used for assessing the watertight integ- rity of a joint at the time of the test. It is not a pipeline acceptance test as it does not evaluate the integrity of the pipe barrel or any long-term pipeline deformation effects from backfill settlement N OTE 1—The user of this practice is advised that methods described herein is typically used as a preliminary test to enable the installer to demonstrate the integrity of a sewer pipe joint prior to placement of final backfill. Such testing after initial backfill can detect if a gasket has rolled or dirt was pushed into the joint during the mating of the pipe. Repair of these types of installation problems can be done very quickly and effectively prior to final backfill, but once final backfill is placed, repairs are very difficult and costly. N OTE 2—This practice may be used at any time to check the integrity of a joint prior to acceptance testing or to locate a leaking joint when a pipeline fails a hydrostatic infiltration/exfiltration test, vacuum test or air pressure test during any time of the installation and acceptance process. N OTE 3—The user of this practice is advised that no correlation has been found between air loss and water leakage. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
8. Procedure
8.1 The following procedures apply to testing with either air or water. Fig. 1 provides an example of a joint isolation apparatus, where only the area between the two watertight bladders is pressurized. 8.1.1 Review proper operation, safety, and maintenance procedures as provided by the manufacturer of the joint test apparatus. Insure the apparatus has documentation indicating it has been properly calibrated. 8.1.2 Move the joint test apparatus into the sewer line to the joint to be tested and position it to straddle the joint. Make sure the end element sealing tubes straddle both sides of the joint and the hoses are attached. For the water test, the bleed-off petcock must be located at top dead center. 8.1.3 Inflate end element sealing tubes with air in accor- dance with equipment and manufacturer’s instructions. N OTE 5—An erroneous joint failure may occur ifthe joint test apparatus does not obtain a full and continuous contact to a relatively clean and dry pipe surface. Leakage may result around the bladder of the test apparatus. N OTE 6—The user of this practice is advised that all test pressures are measured as gage pressure, which is defined as any pressure greater than atmospheric pressure. Since water produces a pressure of 0.43 psi (3 kPa) for every foot of depth, in a trench that is not completely dewatered, the test pressures must be increased by 0.43 psi (3 kPa) per foot of groundwater depth to offset the depth of groundwater over the springline of the sewer line. 8.1.4 An air or water reservoir shall be included in the joint test system. By maintaining a constant supply ofair or water in a reservoir, continuous pumping of air or water is not required, and any variances in test equipment and joint space will be negated. The reservoir shall have a minimum volume of 2.5 ft 3 (0.071 m 3 ) .