SPECIFICATION RW 2510 ISSUE 2 Page 3
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4.2 SAMPLING INSTRUCTIONS
4.2.1 Qualification Test Samples
Qualification test samples shall consist of 15 m (50 feet) of continuous marker material and the
appropriate number of finished markers necessary to run all tests. Qualification of any one size
shall qualify all sizes.
4.2.2 Acceptance Test Samples
Acceptance test samples shall consist of the appropriate number of finished markers necessary
to run the specified tests.
4.3 TEST PROCEDURES
Unless otherwise specified, the markers shall be removed from the carrier and recovered for
testing. Where required by test method limitations, testing shall be done on expanded tubing
prior to cutting and assembly.
4.3.1 Dimensions, Dimensional Recovery and Longitudinal Change
Test three markers in accordance with ASTM D 2671 for as supplied dimensions, dimensions as
recovered and longitudinal change. Mark two gauge marks 44.5 mm (1.75 ins.) apart on each
sample. When required, recover specimens for 3 minutes at 200 ± 5
o
C (392 ± 9
o
F). Remove
the specimens from the oven, and allow to cool to room temperature. The distance between
gauge marks and inside diameter of each shall be measured. The longitudinal change shall be
expressed as a percentage of the original gauge mark distance. The recovered inside diameter
and recovered wall thickness shall be determined.
4.3.2 Tensile Strength and Ultimate Elongation
Test three specimens for tensile strength and ultimate elongation in accordance with ASTM D
2671, using 25 mm (1-inch) benchmarks, a 50 mm (2-inch) initial jaw separation and a jaw
separation speed of 508 mm (20 inches) per minute.
4.3.3 Low Temperature Flexibility
Recover three specimens, sizes RPS 1-400 and smaller, over a stranded AWG wire (nearest
gauge which is larger than the sleeving maximum I.D. nominal after unrestricted shrinkage). For
tubing size RPS 400-1000, cut three 152 mm by 6.4 mm (6 inch by 1/4 inch) strips, longitudinally
from recovered tubing. Condition the specimens for 4 hours at -30 ± 2
o
C (-22 ± 4
o
F). While at
this temperature, bend the tubular specimens 90 degrees, in approximately 2 seconds, over a
similarly conditioned mandrel, selected in accordance with Table 1. Bend the strip specimens
360 degrees over a 7.9 mm (5/16-inch) mandrel, similarly conditioned. Examine the specimens
for cracks.
TABLE 1
MANDREL DIMENSIONS FOR
BEND TESTING
RPS 1-400 to RPS 400-1000
