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|  MIL-S-24660(SH)
other facilities suitable for the performance of the inspection requirements
specified herein, unless disapproved by the Government. The Government reserves
the right to perform any of the inspections set forth in the specification where
such inspections are deemed necessary to assure supplies and services conform to
prescribed requirements.
4.1.1 Responsibility for compliance. All items must meet all requirements
of sections 3 and 5. The inspection set forth in this specification shall become
a part of the contractor's overall inspection system or quality program. The
absence of any inspection requirements in the specification shall not relieve
the contractor of the responsibility of assuring that all products or supplies
submitted to the Government for acceptance comply with all requirements of the
contract. Sampling in quality conformance does not authorize submission of known
defective material, either indicated or actual, nor does it commit the Government
to acceptance of defective material.
4.2
Quality conformance inspection.
4.2,1 Lot . Sprinkler heads of the same design and orifice size offered
for delivery at one time shall be considered a lot for purposes of inspection.
4.2.2 Sampling for visual and dimensional examination. A random sample
of sprinkler heads shall be selected from each lot in accordance with
MIL-STD-105 at inspection level II for the examination of 4.3. The acceptable
quality level shall be 1.5 percent defective. Any sprinkler head in the sample
containing one or more visual or dimensional defects shall be rejected, and if
the number of defective sprinkler heads in any sample exceeds the acceptance num-
ber for that sample, the lot represented by the sample shall be rejected.
4.2.3 sampling for tests. A random sample of sprinkler heads shall be
selected from each lot in accordance with MIL-STD-105 at inspection level III
for lots of 65 and under, inspection level 11 for lots of 66 to 500, and inspec-
tion level I for lots of 501 and over for the tests of 4.4. The acceptable
quality level shall be 2.5 percent defective. Any sprinkler head not meeting
the requirements of this specification shall be rejected, and if the number of
nonconforming sprinkler heads in any sample exceeds the acceptance number for
that sample, the lot represented by the sample shall be rejected.
4.3 Visual and dimensional examination. Each of the sample sprinkler
heads selected in accordance with 4.2.2 shall be visually and dimensionally
examined to verify compliance with the requirements specified herein.
4.4 Test procedures. Each sample sprinkler head shall be subjected to a
performance test to determine compliance with the flow characteristics specified
herein (see figure 1 and table I).
4.5 Inspection of packaging. Sample packages and packs, and the inspec-
tion of the preservation-packaging, packing and marking for shipment and stor-
age shall be in accordance with the requirements of section 5 and the documents
specified therein.
4
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