Page 2 SPECIFICATION RT-1171 ISSUE 7
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4. QUALITY ASSURANCE PROVISIONS
4.1 CLASSIFICATION OF TESTS
4.1.1 Qualification Tests
Qualification tests are those performed on tubing submitted for qualification as a satisfactory product and
shall consist of all tests listed in this specification.
4.1.2 Acceptance Tests
Acceptance tests are those performed on tubing submitted for acceptance under contract. Acceptance tests
shall consist of the following:
Dimensions
Longitudinal Change
Tensile Strength
Ultimate Elongation
Flammability
Heat Shock
Low Temperature Flexibility
4.2 SAMPLING INSTRUCTIONS
4.2.1 Qualification Test Samples
Qualification test samples shall consist of 50 feet (125 m) of black and white tubing. Qualification of black
and white shall qualify all colors. Qualification of any size within each size range specified below shall
qualify all sizes within that size range.
Size Range
3/64 through 1/8
3/16 through 3/4
1 through 4
4.2.2 Acceptance Test Samples
Acceptance test samples shall consist of not less than 16 feet (5 m) of tubing selected at random from each
lot. A lot shall consist of all tubing of the same size, from the same production run, and offered for
inspection at the same time.
4.3 TEST PROCEDURES
Unless otherwise specified, perform tests on specimens which have been fully recovered by conditioning for
3 minutes in a 200 ± 5°C (392 ± 9°F) oven. Condition the test specimens (and measurement gauges, when
applicable) for 3 hours at 23 ± 3°C (73 ± 5°F) and 50 ± 5 percent relative humidity for 3 hours prior to all
testing. Use mechanical convection type ovens in which air passes the specimens at a velocity of 100 to 200
feet (30 to 60 m) per minute.
4.3.1 Dimensions and Longitudinal Change
Measure three 6-inch (150 mm) specimens of tubing as supplied, for length ± 1/32 inch
(± 1 mm), and inside diameter in accordance with ASTM D 2671. Condition the specimens for
3 minutes in a 200 ± 5°C (392 ± 9°F) oven, cool to 23 ± 3°C (73 + 5°F), and then remeasure. Prior to and
after conditioning, the dimensions of the tubing shall be in accordance with Table 1 and the longitudinal
change shall be in accordance with Table 3. Calculate the longitudinal change as follows:
C =
L
1
- L
0
L
0
x 100
Where: C = Longitudinal Change [percent]
L
0
= Length Before Conditioning [inches (mm)]
L
1
= Length After Conditioning [inches (mm)]