2.3
e. Production Code, including Extrusion Date, and Lot or Batch
Number; and
f. SDR.
SOURCE QUALITY CONTROL
A.
The pipe and fitting manufacturer shall certify that samples of his production
pipe have undergone stress regression testing, evaluation, and validation in
accordance with ASTM D2837 and PPI TR-3. Under these procedures, the
minimum hydrostatic design basis shall be certified by the pipe and fitting
manufacturer to be 1600 psi at 73.4°F and 800 psi at 140°F.
Material shall be listed in the name of the pipe and fitting manufacturer by the
Plastics Pipe Institute (PPI) in PPI TR-4 with the following Standard Grade
ratings:
73.4°F 140°F
Hydrostatic Design Basis (HDB) 1600 psi 800 psi
Hydrostatic Design Stress (HDS) 800 psi 400 psi
PPI material listing in the name of the resin supplier is not acceptable in
meeting this requirement.
As the basis of the acceptance of the material, the manufacturer will furnish a
certificate of conformance of these Specifications upon request. When prior
agreement is being made in writing between the purchaser and the
manufacturer, the manufacturer will furnish other conformance certification in
the form of affidavit of conformance, test results, or copies of test reports.
Physical Test Requirements
1. Sampling: The selection of the sample of pipe shall be as agreed upon by
the purchaser and the manufacturer. In case of no prior agreement, any
sample selected by the manufacturer shall be deemed adequate.
2. Sample size for flattening test will be one sample per size and class of
pipe per project.
3. Conditioning: Conditioning of samples prior to and during test shall be as
agreed upon by the purchaser and manufacturer. In case of no prior
agreement, the conditioning procedure used by the manufacturer shall be
deemed adequate.
Test Methods (to be completed by Manufacturer)
1. Flattening: Three specimens of pipe, a minimum of 12 inches long, shall
be flattened between parallel plates in a suitable press until the distance
between the plates is 40 percent of the outside diameter of the pipe. The
rate of loading shall be uniform and such that the compression is
File No. 3066.09 High-Density Polyethylene Pipe 15210 - 5 of 15 Revised February 2019
