MIL-DTL-22050E (SH)
3.6 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible provided that the material
meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle
costs.
3.7 Toxicity. When evaluated in accordance with 4.5, the gasket and packing material shall have no
adverse effect on the health of personnel when used for its intended purpose and shall not cause any environmental
problems during waste disposal (see 4.5 and 6.6).
3.8 Disposal. The manufacturer shall certify that the gasket and packing material shall not contain any
hazardous material or exhibit any hazardous characteristic as defined under 40 CFR 261 (Code of Federal
Regulations). The manufacturer shall make every effort to adhere to this requirement. If no product which meets
this requirement can be identified, (i.e., if the gasket and packing material does contain a hazardous material), the
manufacturer shall provide information detailing proper disposal of the gasket and packing material.
3.9 Off-gassing. The gasket and packing material shall meet the requirements in the Nuclear Powered
Submarine Atmosphere Control Manual, NAVSEA Technical Manual S9510-AB-ATM-010 Rev 2, for a usage
category of Limited (see 4.6 and 6.7).
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Conformance inspection (see 4.2)
4.2 Conformance inspection. Conformance inspection shall consist of the examinations and tests specified
in 4.3.
4.2.1 Lot. For the purpose of conformance inspection and testing, a lot is defined as all the material
produced in one facility, using the same materials, of the same grade, using the same production processes, not
exceeding 1000 pounds, and being offered for delivery at one time.
4.2.2 Sampling for conformance inspection. As a minimum, the contractor shall randomly select a sample
quantity of test specimens as defined in 4.2.3 from each lot of completed material in accordance with Table II and
inspect them in accordance with the examinations and test specified herein. If one or more defects are found in any
sample, the entire lot shall be rejected. The contractor has the option of screening 100 percent of the rejected lot for
the defective characteristic(s) or providing a new lot which shall be inspected in accordance with the sampling plan
contained herein. The contractor shall maintain for a period of three years after contract completion records of
inspections, tests, and any resulting rejections.
TABLE II. Sample size for conformance inspections and tests.
Lot size
Sample size
number of gaskets, molded
number of gaskets, molded
items, packings, or unit areas of
items, packings, or unit areas
sheets or strips
of sheet or strips
2 to 50
5
51 to 90
7
91 to 150
11
151 to 280
13
281 to 500
16
501 to 1200
19
1201 to 3200
23
3201 and over
29
5
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