A-A-52032B
2.3.9 Lashings. Five (5) lashings shall be provide and located within the corrugations on each top and bottom side rails. Pull strength shall withstand a minimum of 3000 lbs (1500 kg) in any direction. Each corner post shall incorporate a minimum of three (3) 0.5 in. (12.7 (mm) diameter lashing points and a similar number of restraint bars in the rear post shoring slot.
2.3.10 Corner fittings. Corner fittings shall conform to the requirements of ISO 1161 (see 7.2.4).
2.3.11 Anti-pilferage provisions. Hinge-pins, screws, bolts, and other fasteners used for securing the hinges and closing devices to the container and for holding the essential parts of the sides, ends and roof, shall be welded or otherwise secured in such a manner as to prevent access to the interior of container without leaving visible signs of tampering. Where such welding destroys protective coating on the items being welded or on other container parts, the weld and surrounding area shall be thoroughly cleaned, treated, and painted. All locking device handles shall be furnished with provisions for padlocking and customs sealing.
2.3.12 Metal fabrication. Metal used in the fabrication of equipment shall be free from kinks and sharp bends. The straightening of material shall be done by methods that will not cause injury to the metal. Shearing and clipping shall be done neatly and accurately. Corners shall be square and true. Flame cutting, using a tip suitable for the thickness of the metal, may be employed instead of shearing or sawing. Burned surfaces or flame-cut material shall be free of slag. All bends of a major character shall be made with controlled means in order to insure uniformity of size and shape. Precautions shall be taken to avoid overheating, and heated metal shall be allowed to cool slowly.
2.3.13 Bolted and riveted connection. Bolt and rivet holes shall be accurately punched or drilled and shall have the burrs removed. Washers, lock washers, or lock nuts shall be provided where necessary, and all bolts, nuts, and screws shall be tight. Rivet heads, when not countersunk or flattened, shall be uniform in size and shape for the same diameter of rivet concentric with the rivet holes, and in full contact with the surface of the member.
2.3.14 Placard holder. When specified (see 7.1), four stainless steel placard holders conforming to Department of Transportation (DOT), Bureau of Explosives (BOE) 6000, part 172,
appendix C, shall be provided (see 7.2.2). One placard holder shall be located on each end and each side of the container. Placard holders shall be permanently attached and shall not protrude beyond the outer surfaces of the corner fittings. The holders shall be located a minimum of 3 in. away from all other container markings. When design permits, the placard holders shall be located within a recessed area of the container.
2.3.15 Surface preparation. All steel components both inside and out, shall be abrasively blasted to a near white per Society for Protective Coatings (SSPC) Guide-10 (see 7.2.5). Equivalent chemical cleaning may be proposed. The cleaned surface shall be free from oil, grease, dirt,
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