ASTM D2837-13e1
Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products

Standard No.

ASTM D2837-13e1

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D2837-21

Latest

ASTM D2837-22

Scope

4.1 The procedure for estimating long-term hydrostatic strength or pressure-strength is essentially an extrapolation with respect to time of a stress-time or pressure-time regression line based on data obtained in accordance with Test Method D1598. Stress or pressure-failure time plots are obtained for the selected temperature and environment: the extrapolation is made in such a manner that the long-term hydrostatic strength or pressure strengthis estimated for these conditions.

Note 3—Test temperatures should preferably be selected from the following: 40°C; 50°C; 60°C; 80°C; 100°C. It is strongly recommended that data also be generated at 23°C for comparative purposes.

4.2 The hydrostatic or pressure design basis is determined by considering the following items and evaluating them in accordance with 5.4.

4.2.1 Long-term hydrostatic strength or hydrostatic pressure-strength at 100 000 h,

4.2.2 Long-term hydrostatic strength or hydrostatic pressure-strength at 50 years, and

4.2.3 Stress that will give 58201;% expansion at 100 000 h.

4.2.4 The intent is to make allowance for the basic stress-strain characteristics of the material, as they relate to time.

4.3 Results obtained at one temperature cannot, with any certainty, be used to estimate values for other temperatures. Therefore, it is essential that hydrostatic or pressure design bases be determined for each specific kind and type of plastic compound and each temperature. Estimates of long-term strengths of materials can be made for a specific temperature provided that calculated values, based on experimental data, are available for temperatures both above and below the temperature of interest.

4.4 Hydrostatic design stresses are obtained by multiplying the hydrostatic design basis values by a service (design) factor.

4.5 Pressure ratings for pipe may be calculated from the hydrostatic design stress (HDS) value for the specific material used to make the pipe, and its dimensions using the equations in 3.1.11.

4.5.1 Pressure ratings for multilayer pipe may be calculated by multiplying the pressure design basis (PDB) by the appropriate design factor (DF).

1.1 This test method describes two essentially equivalent procedures: one for obtaining a long-term hydrostatic strength category based on stress, referred to herein as the hydrostatic design basis (HDB); and the other for obtaining a long-term hydrostatic strength category based on pressure, referred to herein as the pressure design basis (PDB). The HDB is based on the material's long-term hydrostatic strength (LTHS),and the PDB is based on the product's long-term hydrostatic pressure-strength (LTHS_P). The HDB is a material property and is obtained by evaluating stress rupture data derived from testing pipe made from the subject material. The PDB is a product specific property that reflects not only the properties of the material(s) from which the product is made, but also the influence on product strength by product design, geometry, and dimensions ......

ASTM D2837-13e1 Referenced Document

• ASTM D1243 Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
• ASTM D1598 Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ISO 9080 Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation

ASTM D2837-13e1 history

• 2022 ASTM D2837-22 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2021 ASTM D2837-21 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2013 ASTM D2837-13e1 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2013 ASTM D2837-13 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2011 ASTM D2837-11 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2008 ASTM D2837-08 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2004 ASTM D2837-04e1 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2004 ASTM D2837-04 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products
• 2002 ASTM D2837-02 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• 2001 ASTM D2837-01ae1 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• 2001 ASTM D2837-01a Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• 2001 ASTM D2837-01 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials
• 1998 ASTM D2837-98a Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials