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|  MIL-C-24756(SH)
4.5.2 Visual examinations. Smoke curtains and blankets shall be visually examined for defects
listed in table I. The hem shall be inspected on both the face and the back side. Defects found
shall be counted regardless of their proximity to one another, except where two or more defects
represent a single local rendition on the hem, in which case only the most serious defect will be
counted. The sample size shall be in accordance with inspection Level S-3.
TABLE I. Description of defects in smoke barriers.
Major
Minor
Defects
x
Cut, hole or tear (including selvage) - any
x
Crease or wrinkle - embedded, cannot be removed by manual pressure
Spot, stain, or streak (inspection distance -3 feet):
x
1 inch or more in combined length and width dimensions
x
Less than 1 inch in combined length and width dimensions
x
Color not as specified
x
Color not uniform or shaded
x
Design not as specified
x
Any component not as specified
Seam and stitch type:
x
Wrong seam type
x
Wrong stitch type
Stitch tension
x
Loose, resulting in a loosely secured seam
Tight, stitches break when normal strain is applied to the
x
seam or stitching
x
Stitches per inch: Fewer than 6 or more than 10
Hem:
x
Width variable by more than l/4-inch
x
Badly twisted, pleated, or puckered
x
Needle chews
Open seam
x
Due to broken thread or broken stitch
x
Due to skipped stitches or run off
x
Label missing incomplete, incorrect, illegible or misplaced
7
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