MIL-T-68410
4.3.3.1 Examination for defects in appearance and workmanship. For examination of defects of tape (rolls), the sample unit shall be 1 yard. For examination of sheets (Flat cut), the sample unit shall be 1 sheet. The index level for this examination shall be 1.5 defects per 100 units. The sample size shall be based on level I of MIL-STD-105. Both sides of the tape and sheet shall be examined and shall conform to the requirements of table VI.
TABLE VI. Defects in appearance and workmanship
Examine |
Defect |
Appearance Workmanship |
Any holes, tears, cuts, cracks, or sharp creases. Imbedded particles of dirt, grit, or other foreign matter. Not clean cut, broken, uneven or sticky edges. Adhesive coating not evenly and smoothly applied over entire area of one side of backing. Any bare spots or lumps. |
4.3.3.2 Examination for defects in construction. The sample unit for this examination shall be 1 roll or 1 sheet, as applicable. The index for this examination shall be 2.5 defects per 100 units. The sample size shall be based on level S-3 of MIL-STD-105 and shall conform to the requirements of table VII.
TABLE VII. Defects in construction
Examine |
Defect |
Construction of tape and sheet Wind of tape Unwinding of tape |
Not as specified. Roll not evenly and neatly wound. Does not unroll evenly and uniformly. Backing breaks, delaminates or splits. Tape sticks together to the extent unrolling causes tearing or injury to surface or adhesive separate from backing. Roll not continuous. |
4.3.3.3 Examination for dimensional defects. The sample unit for this examination shall be 1 roll or 1 sheet, as applicable. The index level for this examination shall be 2.5 defects per 100 units. The sample size shall be based on level S-2 of MIL-STD-105 and shall conform to the requirements of table VIII.
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