A-A-50121B
2.2 Visual examination. Each lot of descenders shall be inspected in accordance with MIL-STD-105. The inspection level shall be II and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 4.0. The lot size shall be expressed in units of descenders. The sample unit shall be one descender. The descenders shall be examined for the defects listed below:
Finish not smooth and adherent; color not as specified not free of burrs, rough spots, sharp edges, slivers, flat areas or projections; any component missing or not specified type; any component fractured, split, dented, bowed, malformed, damaged or loose; markings in wrong location, incomplete, illegible, incomplete, or not as specified.
2.3 Dimensional examination. The descenders shall be examined without damaging or disassembling the descenders. Any dimensions not within the specified tolerances shall be classified as a defect. The lot size shall be expressed in units of descenders. The sample unit shall be one descender. The inspection level shall be S-3 and the AQL, expressed in terms defects per hundred units, shall be 2.5.
2.4 Proof load test. For proof load testing any industrial testing machine may be used to determine compliance with the requirements specified 1.1. Any desired operating speed may be used until a load of 1170 grams is reached. After reaching that point the speed shall be maintained at not more than d4 inches per minute or less than 1 inch per minute until a load of 1800 kg is reached. This load shall be maintained for not less than 10 nor more than 15 seconds. The descender shall be withstand the 1800 kg load without breaking or cracking. Descenders subjected to this test shall be discarded. Any breaking, cracking or deformation shall be considered failure. The sampling for this test shall be in accordance with MIL-STD-105. The inspection level shall be S-2. Any test failure shall be cause for rejection of the lot.
3. PACKAGING
3.1 Packaging. Twelve descenders shall be packaged in a snug-fitting intermediate box fabricated from corrugated fiberboard.
3.2 Packing. One hundred and twenty descenders packaged as specified, shall be packed in a snug-fitting RSC style corrugated fiberboard shipping container shall be completely filled with no voids and of a size that can be palletized in accordance with MIL-STD-147. Each shipping container shall be closed in accordance with the appendix of PPP-B-636.
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