3.1 The Administration may require piping, as
defined in section 1.4, to be
prototype tested to ensure that the piping meets the performance requirements
of these guidelines.
3.2 The manufacturer should have a quality system
than meets ISO 9001, “Quality systems - Model for quality assurance
in design/development, production, installation and servicing”.
or equivalent. The quality system should consist of elements necessary
to ensure that pipe and fittings are produced with consistent and
uniform mechanical and physical properties in accordance with recognized
standards. Control during manufacture should be certified by the manufacturer
to the satisfaction of the Administration.
3.3 Dimensions and tolerances for pipes should
conform to a recognized standard.
3.4 Piping and fittings should be permanently
marked with identification in accordance with a recognized standard.
Identification should include pressure ratings, the design standard
that the pipe of fitting is manufactured in accordance with, and the
material system with which the pipe or fitting is made.
3.5 Each length of pipe should be tested at the
manufacturers production facility to a hydrostatic pressure not less
than 1.5 times the rated pressure of the pipe. Other test criteria
may be accepted by the Administration.
3.6 Samples of pipe should be tested to determine
the short-term and/or long-term hydrostatic design strength. These
samples should be selected randomly from the production facilities
at a frequency to the satisfaction of the Administration.
3.7 For piping required to be electrically conductive,
representative samples of pipe should be tested to determine the electrical
resistance per unit of length. The test method and frequency of testing
should be acceptable to the Administration.
3.8 Random samples of pipe should be tested to
determine the adhesion qualities of the coating to the pipe. The test
method and frequency of testing should be acceptable to the Administration.