MIL-STD-1660A APPENDIX D
D.1 SCOPE
INCLINE IMPACT TEST
D.1.1 Scope. The following procedure is applicable for determining the ability of unit loads to resist impacts on their surfaces or edges, and for determining the ability of the unit load, the packaging, and packing methods to provide protection to the contents when the pack is impacted on its surfaces or edges. This Appendix is a mandatory part of the standard. The information contained herein is intended for compliance.
D.2 APPLICABLE DOCUMENTS
D.2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this appendix. This section does not include documents cited in other sections of this standard or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this appendix, whether or not they are listed.
D.2.2 Non-government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.
ASTM INTERNATIONAL
ASTM D880 - Standard Test Method for Impact Testing for Shipping Containers and Systems
(Copies of this document are available from ASTM International, 100 Barr Harbor Dr., P.O. Box C700, West
Conshohocken, PA 19428-2959 or online at www.astm.org.) D.3 DEFINITION
D.3.1 Inline impact tester. For the purpose of this test, an incline impact tester shall consist of a two-rail steel track inclined 10 degrees from the horizontal, a rolling carriage or dolly, and a rigid bumper (see D.4).
D.4 APPARATUS
D.4.1 Inclined track. The inclined track shall accommodate the carriage which shall be equipped with steel wheels, not less than 3 inches in diameter, and a renewable face made of dense hardwood or plywood. The bumper at the bottom of the incline shall be constructed integrally with the track and with the plane of its face perpendicular to the direction of movement of the carriage. The bumper shall be faced with dense hardwood members of such thickness as to resist the impacts without breakage or excessive deflection. The faces of the bumper and the carriage shall be kept free of any protrusions, such as bolts or nailheads, abrasions, and splits that might affect the test results. The track shall be clean and the wheels well lubricated. The apparatus may also have a cable and winch to aid in pulling the carriage to the elevated end of the track, and an automatic tripping device for releasing the carriage from
a predetermined point of the incline. A detailed description of this apparatus with construction drawings appears in
ASTM D880.
D.5 SPECIMEN
D.5.1 Contents. One unit load and its contents shall constitute a single specimen. The unit load shall be loaded for the test with the interior packing and the actual contents for which it was designed. If use of the actual contents
is not practical, a dummy load shall be substituted to simulate such contents in weight, shape, and position in the
container. The contents, or dummy load, shall be blocked, braced, and cushioned in place as for shipment.
Source: https://assist.dla.mil -- 2D9ownloaded: 2014-09-28T13:04Z Check the source to verify that this is the current version before use.
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