A-A-54217
specified in this description.
Sampling for tests. Sampling for tests including dimensional test, shall be conducted in accordance with MIL-STD-105, with an AQL of 2.5 (percent defective) and inspection level of II. The unit of product for test purposes shall be one refrigerator.
Tests.
1. Operation. The unit shall be operated for one hour according to manufacturer’s directions to verify that the controls are adjusted and functional. The unit shall be inspected for damage or leakage from any parts piping or fitting.
2. Dielectric strength. A slowly rising potential from O to 1240 volts, 60 Hz, shall be applied between live and dead metal parts. The potential shall be maintained at maximum for one minute.
3. Performance. The unit shall obtain an internal compartment temperature of 35.6°F with the ambient temperatures maintained as specified herein, within the times specified, and without exceeding the percentage running times specified for at least 24 hours of steady state operation under the conditions for ambient temperature, pulldown time and cycle time specified herein.
Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, providing they fall within the tolerance specified using conversion tables contained in the latest revision of Federal Standard 376, and all other requirements of this document are met.
If a product is manufactured to metric dimensions and those dimensions exceed the tolerances specified in the inch/pound units, a request should be made to the contracting officer to determine if the product is acceptable.
The contracting officer has the option of accepting or rejecting the product.
Contractor certification. The contractor shall certify that the product offered meets the salient characteristics of this description and conforms to the producers’ own drawings, specifications, standards, and quality assurance practices. The Government reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract.
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