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|  MIL-C-24756(SH)
3.5 Design. The two panel and blanket portable smoke barriers shall be constructed in
accordance with Drawing 803-5959318.
3.6 Construction.
3.6.1 Stitches, seams, and stitching. Seams and stitching shall conform to FED-STD-751 as
follows:
Seam types shall conform to figure 1 of FED-STD-751 Hem seams
shall be in accordanee with detail 8-A of Drawing 803-5959318.
3.6.1.1 Type 301 stitching (6 to 10 stitches per inch). Ends of stitching shall be back stitched
or back tacked not less than 1/2-inch except where ends are caught in other seams and stitching.
Thread tensions shall be maintained so that no loose or excessively tight stitching shall result in
puckering of the materials sewn.
3.6.1.2 Stitching spacing gauge The stitching spacing gauge shall be 3/8 + 1/16inch.
3.6.2 Thread ends. Thread ends shall be trimmed to length not more than 025 inch
3.63 Shade marking. Component parts shall be marked, ticketed, or bundled to ensure a
uniform shade throughout the portable smoke barrier. The use of ink pad numbering machine,
rubber stamp, or pencil is acceptable provided that marks shall not show through the outside of
the portable smoke barrier.
3.7 Recovered material. Unless otherwise specified herein, all equipment material, and articles
incorporated in products covered by specification shall be fabricated from new materials or
recovered materials to the maximum extent practicable without jeopardizing the intended use. The
term "recovered materials" means materials which have been collected or recovered from solid
waste and reprocessed to become a source of raw materials as opposed to virgin raw materials.
None of the above shall be interpreted to mean that the use of used or rebuilt products is allowed
under this specification unless otherwise specified. .
3.8 Workmanship. Portable smoke curtains and blankets shall conform to the quality of
product established herein.
.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order
the contractor is responsible for the performance of all inspection requirements (examinations and
tests) as specified herein. Except as otherwise specified in the contract or purchase order, the
contractor may use his own or any other facilities suitable for the performance of the inspection
requirements specified herein, unless disapproved by the Government. The Government reserves
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