MIL-DTL-22706G
e. At pneumatic pressure of 150 psia (maximum operating pressure), pressure
shall not leak more than the value specified in 4.4.3.
f. The duct assembly shall withstand abrasion resistance when tested in
accordance with 4.4.12.
g. The scuff cover shall have a tensile strength of 1,500 pounds and shall pass this
requirements when tested in accordance with 4.4.13.
h. The duct shall meet the adhesion requirements of ASTM-D413 when tested in
accordance with adhesion test (see 4.4.8).
i. The pressure drop through the duct assembly shall not exceed the values
specified in 4.4.7.
j. The duct assembly shall be resistant to various fluids and shall pass the fluid
resistant requirements when tested in accordance with 4.4.10.
3.6 Part numbering of interchangeable parts. All parts having the same manufacturer's
part number shall be functionally and dimensionally interchangeable.
3.7 Weight. The weight of the duct without the end flanges and the connectors but with
scuff cover shall be not greater than 2.5 pounds per foot of length.
3.8 Marking.
3.8.1 Identification of product. The duct, flanges, and scuff covers shall be marked for
identification in accordance with MIL-STD-130. The identification shall be permanent and shall
not peel off, crack, or loosen with age and extreme environmental conditions. The location and
other details selected for marking shall be in accordance with figure 3.
3.9 Workmanship. Workmanship shall be high quality to ensure that the ducts furnished
under this specification are free of defects that compromise, limit, or reduce performance, or
intended use.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. Qualification inspection (see 4.2).
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