MIL-DTL-15011K
but in no case shall fasteners be driven into or through this defect. The maximum allowable portion of the
actual deckboard or stringer board with exposed wane shall not exceed one-quarter the width by two-
thirds the thickness for the full length of the board. The maximum allowable portion of the actual post
with exposed wane shall not exceed one-third the width by one-half the height for the full length of the
post.
3.2.1.3.6. Warp. The bow in a member shall not exceed 1/16 inch per foot of length. The cup in a
member shall not exceed 1/4 inch in an 8 inch width, or 1/8 inch in a 4 inch width, or a like proportion in
other widths. The twist in a member shall not exceed 1/4 inch per foot of length in an 8 inch width, 1/8
inch per foot of length in 4 inch width, or a like proportion in other widths.
3.2.1.4. Moisture content. Unless otherwise specified, (see 6.3) the seasoned lumber used to
construct Class 1 pallets at the time of manufacture and prior to the application of preservative treatment
shall not be greater than 19 percent nor less than 12 percent of its oven dry weight as evidenced by the
test specified in 4.4.1. For Class 2 pallets, the average moisture content for wood components is
unrestricted.
3.2.2. Preservative treatments. Unless otherwise specified, (see 6.3) the constructed pallet or
finished wood parts thereof shall be completely immersed or flooded as to inundate all interior and
exterior surfaces for a minimum of one minute in a solution of one of the following wood preservatives:
a. Copper-8-quinolinolate reduced with water down to 1.8% Copper-8-quinolinolate as
metal (see 6.7).
b. Zinc Naphthenate reduced with water down to 3% Zinc as metal (see 6.8).
c. Copper Naphthenate reduced with water down to 2% Copper as metal (see 6.9).
3.2.2.1. Preservative application. Care shall be exercised to assure complete coverage of all wood
products surfaces. Immediately following the dip treatment, drain the treated wood products for a period
of not less than five minutes. After the dip treatment, air dry the pallets for a period of 24 hours minimum
providing through ventilation thus allowing full circulation around all surfaces of the wood products.
Accelerated drying in an oven or kiln is permitted providing the oven or kiln dry does not exceed 160
degrees Fahrenheit.
3.2.2.2. EPA requirements. The preservative shall be registered with the Environmental
Protection Agency (EPA) for the use intended. The pallet manufacturer shall provide a copy of the
preservatives Material Safety Data Sheet (MSDS) with each shipment provided that the EPA registration
number is annotated on the MSDS. Otherwise, the pallet manufacture shall provide a copy of the
appropriate EPA approved preservative labels with each shipment.
3.2.2.3. Presence of Copper-8-quinolinolate preservative. When treated with Copper-8-
quinolinolate, the wood shall show evidence of discoloration as specified in 4.4.2.
3.2.2.4. Presence of Zinc Naphthenate preservative. When treated with Zinc Naphthenate, the
wood shall show evidence of discoloration as specified in 4.4.3.
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