ASTM D1598-15a
Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure

Standard No.

ASTM D1598-15a

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1598-21

Latest

ASTM D1598-23

Scope

5.1 The data obtained by this test method are useful for establishing stress versus failure time relationships in a controlled environment from which the hydrostatic design basis for plastic pipe materials can be computed. (Refer to Test Method D2837 and Practice D2992.)

5.2 In order to determine how plastics will perform as pipe, it is necessary to establish the stress-failure time relationships for pipe over 2 or more logarithmic decades of time (hours) in a controlled environment. Because of the nature of the test and specimens employed, no single line can adequately represent the data, and therefore the confidence limits should be established.

Note 2: Some materials may exhibit a nonlinear relationship between log-stress and log-failure time, usually at short failure times. In such cases, the 10⁵-hour stress value computed on the basis of short-term test data may be significantly different than the value obtained when a distribution of data points in accordance with Test Method D2837 is evaluated. However, these data may still be useful for quality control or other applications, provided correlation with long-term data has been established.

5.3 The factors that affect creep and long-term strength behavior of plastic pipe are not completely known at this time. This procedure takes into account those factors that are known to have important influences and provides a tool for investigating others.

5.4 Creep, or nonrecoverable deformation for pipe made of some plastics, is as important as actual leakage in deciding whether or not a pipe has failed. Specimens that exhibit localized ballooning, however, may lead to erroneous interpretation of the creep results unless a method of determining creep is established that precludes such a possibility. Circumferential measurements at two or three selected positions on a specimen may not be adequate.

5.5 Great care must be used to ensure that specimens are representative of the pipe under evaluation. Departure from this assumption may introduce discrepancies as great as, if not greater than, those due to departure from details of procedure outlined in this test method.

1.1 This test method covers the determination of the time-to-failure of both thermoplastic and reinforced thermosetting/resin pipe under constant internal pressure.

1.2 This test method provides a method of characterizing plastics in the form of pipe under the conditions prescribed.

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......

ASTM D1598-15a Referenced Document

• ASTM D2122 Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
• ASTM D2517 Standard Specification for Reinforced Epoxy Resin Gas Pressure Pipe and Fittings
• ASTM D2837 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• ASTM D2992 Standard Practice for Obtaining Hydrostatic or Pressure Design Basis for "Fiberglass" (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe and Fittings
• ASTM D3567 Standard Practice for Determining Dimensions of ldquo;Fiberglassrdquo; (Glass-Fiber-Reinforced Thermosetting Resin) Pipe and Fittings

ASTM D1598-15a history

• 2023 ASTM D1598-23 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2021 ASTM D1598-21 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2015 ASTM D1598-15a Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2015 ASTM D1598-15 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2002 ASTM D1598-02(2009) Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2002 ASTM D1598-02(2008) Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 2002 ASTM D1598-02 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• 1997 ASTM D1598-97 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure