MIL-DTL-46506E
4.5.2.1 Load test of handles. Pack box with any suitable material until its gross weight is twice as
great as its gross weight when packed with the item for which it was intended. For handles when the
resulting weight of the packed box is 250 lbs or less, follow 4.5.2.1.1. For handles when the resulting
weight is greater than 250 lbs. and not greater than 500 lbs, follow 4.5.2.1.2.
4.5.2.1.1 Rope handle load test (250 lbs or less). Suspend the box freely for one minute minimum
from each rope handle in turn. In the event that one or both handles fail the requirement, the box shall be
classed defective.
4.5.2.1.2 Rope handle load test (greater than 250 lbs to 500 lbs maximum). Suspend the box
freely for one minute minimum from both rope handles (at once). In the event that one or both handles
fail the requirement, the box shall be classified as a defective.
4.5.2.2 Jute rope handles.
4.5.2.2.1 Rope type. A certification shall be delivered to show compliance with T-R-650.
4.5.2.3 Webbing rope handles.
4.5.2.3.1 Rope type. A certification shall be delivered to show compliance with MIL-W-17337.
4.5.2.4 Polyethylene or polypropylene rope handles.
4.5.2.4.1 Rope weight per foot. A 12 yard sample of polyethylene or polypropylene rope shall be
furnished. The sample rope shall be stretched with a load equal to 200 pounds multiplied by the diameter
(inches squared). While the rope is under load, a 30 foot length shall be marked off, cut out and accurately
weighted. The weight, in pounds per foot, shall be computed using the length measurement determined
under load.
4.5.2.4.2 Rope breaking strength. A 75 foot sample of polyethylene or polypropylene rope shall
be supplied cut into five pieces approximately equal in length. The breaking strength of the five samples
of polyethylene or polypropylene rope submitted shall be determined (see 6.12). The average breaking
strength shall be computed.
4.5.3 Presence of PQ56 (copper-8-quinolinolate) preservative. (see 6.10)
4.5.3.1 Materials and equipment. The materials and equipment required are as follows:
a. PQ check (indicator): The formulation contains 10 parts by weight of sodium
diethyldithiocarbanate trihydrate and 90 parts by weight of distilled water.
b. Dropper: A glass tube eye dropper or equivalent shall be used.
4.5.3.2 Test procedure. Two drops of PQ Check indicator shall be applied to the wood surface.
An immediate dark brown coloration and the spreading of the drops shall indicate PQ56 treatment.
4.5.4 Presence of M-GARD W550 (zinc naphthenate emulsifiable) preservative.
4.5.4.1 Materials and equipment. The materials and equipment required are as follows:
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