Current through August, 2024
(a) Heat
fusion, solvent cement, and adhesive joints. Before any written procedure
established under section 6-77-84(b) is used for making plastic pipe joints by
a heat fusion, solvent cement, or adhesive method, the procedure must be
qualified by subjecting specimen joints made according to the procedure to the
following tests:
(1) The burst test
requirements of:
(A) In the case of
thermoplastic pipe, paragraph 8.6 (Sustained Pressure Test) or paragraph 8.7
(Minimum Hydrostatic Burst Pressure) of ASTM D2513; or
(B) In the case of thermosetting plastic
pipe, paragraph 8.5 (Minimum Hydrostatic Burst Pressure) or paragraph 8.9
(Sustained Static Pressure Test) of ASTM D2517;
(2) For procedures intended for lateral pipe
connections, subject a specimen joint made from pipe sections joined at right
angles according to the procedure to a force on the lateral pipe until failure
occurs in the specimen. If failure initiates outside the joint area, the
procedure qualifies for use; and
(3) For procedures intended for non-lateral
pipe connections, follow the tensile test requirements of ASTM D638, except
that the test may be conducted at ambient temperature and humidity. If the
specimen elongates no less than twenty-five percent or failure initiates
outside the joint area, the procedure qualifies for use.
(b) Mechanical joints. Before any written
procedure established under section 6-77-84(b) is used for making mechanical
plastic pipe joints that are designed to withstand tensile forces, the
procedure must be qualified by subjecting five specimen joints made according
to the procedure to the following tensile test:
(1) Use an apparatus for the test as
specified in ASTM D638-77a (except for conditioning);
(2) The specimen must be of such length that
the distance between the grips of the
apparatus and the end of the stiffener does not affect the
joint strength;
(3) The
speed of testing is 5.0 mm (0.20 in) per minute, plus or minus twenty-five
percent;
(4) Pipe specimens less
than 102 mm (4 in) in diameter are qualified if the pipe yields to an
elongation of no less than twenty five percent or failure initiates outside the
joint area;
(5) Pipe specimens 102
mm (4 in) and larger in diameter shall be pulled until the pipe is subjected to
a tensile stress equal to or greater than the maximum thermal stress that would
be produced by a temperature change of 55E C (100E F) or until the pipe is
pulled from the fitting. If the pipe pulls from the fitting, the lowest value
of the five test results or the manufacturer's rating, whichever is lower must
be used in the design calculations for stress;
(6) Each specimen that fails at the grips
must be retested using new pipe; and
(7) Results obtained pertain only to the
specific outside diameter, and material of the pipe tested, except that testing
of a heavier wall pipe may be used to qualify pipe of the same material but
with a lesser wall thickness.
(c) A copy of each written procedure being
used for joining plastic pipe must be available to the persons making and
inspecting joints.
(d) Pipe or
fittings manufactured before July 1, 1980, may be used in accordance with
procedures that the manufacturer certifies will produce a joint as strong as
the pipe.
