MIL-PRF-22191F
4.2 Qualification inspection. The qualification inspection shall consist of all tests and
examinations of this specification.
4.3 Conformance inspection. Conformance inspections consist of the required tests listed
in table II and the examinations listed in tables III through V for each production run.
4.3.1 Sampling for conformance inspection. Unless otherwise indicated, sampling for
inspection shall be performed in accordance with the provisions set forth in ASQ-Z1.4.
TABLE II. Conformance tests.
Characteristics
Paragraph Reference
4.6.1
Seam strength (as received at room temperature only)
4.6.1
Contact corrosivity
4.6.1
WVTR (as received only after room temp flexing)
4.6.1
Puncture resistance
4.6.1
Resistance to curl (class 1 only)
4.6.1
Oil resistance (delamination)
4.6.1
Transparency
4.6.2
Seam fabrication
4.6.4
Waterproofness (type II and type III only)
4.3.2 Examination of the end item. For the purpose of determining the sample size in
accordance with ASQ-Z1.4, the lot size shall be expressed in units of rolls or packages of sheets,
as applicable, for examinations under 4.3.2.1 through 4.3.2.3.
4.3.2.1 Examination of the end item for defects in appearance, construction, and
workmanship. For examination of defects within rolls, the sample unit of product shall be two
yards, the full width of the roll. For examination of sheets, the sample unit shall be two sheets
randomly selected from a package. No more than five sample units, randomly selected, shall be
drawn from any one roll or package of sheets, as applicable. Both sides of the material shall be
examined.
TABLE III. Examination of end item for defects in appearance, construction, and workmanship.
EXAMINATION
DEFECT
Form
Not roll or flat cut, as specified.
Incorrect type or class of material.
Appearance
Surfaces not clean; presence of any foreign matter, dirt, sand,
grit, or oil spots. (Note: Defects do not apply to outer
convolution of roll.)
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