MIL-DTL-45449C
3.13.1 Alternate method for preservative treatment.
(1) Dip Treatment. Grade A pallets or the finished wood parts thereof, should be
completely flooded for a minimum of one minute in PQ56, M-GARD W550, M-GARD W510,
or Cunapsol 5 preservative, as applicable. All interior and exterior surfaces (when finished wood
parts are dipped) are to be completely inundated with preservative. Care should be exercised to
assure complete coverage of all surfaces of the board.
(2) Drained. Immediately following the dip treatment, wood products being
treated should be drained for a period of not less than 5 minutes. If wood products are palletized,
the pallet load should be tipped on edge to facilitate thorough drainage.
(3) Air Dried. After the dip treatment, the pallets should be air dried for a period
of 24 hours minimum providing thru ventilation thus allowing full air circulation around all
surfaces of the wood pallet. Accelerated drying in an oven or kiln is permitted providing oven or
kiln temperature does not exceed 160 degrees F. The pallets should be air dried to a maximum
moisture content of 19% when tested in accordance with 4.4.1 prior to shipment.
3.14 Markings. Letters and figures shall be marked with black 37038 stencil ink,
A-A-208.
3.14.1 Manufacturer markings. Each Grade A pallet shall be marked on the underside
of the pallet base and cover assembly by the pallet manufacturer with ½ in minimum letters, the
manufacturer's name, address and month and year of manufacture.
3.14.2 Heat treatment. Foreign manufacturers shall have the heat treatment of non-
manufactured wood products verified in accordance with their National Plan Protection
Organization's (NPPO) compliance program as specified in ISPM 15. Heat treatment markings
shall be in accordance with International Standards for Phytosanitary Measures (ISPM 15).
3.14.3 Preservative markings. The pallet shall be marked near the center of the outside
stringer, or side-center block, in 1 in. high (min.) letters. The letters shall not be less than one
inch in height and shall be separated from all other markings. The following symbols shall be
used as listed below:
a. PQ56. The letters "PA'" shall be annotated on opposite sides of the outer face
of the base assembly and cover assembly on all pallets subjected to the PQ56 (copper-8-
quinolinolate) preservative treatment in accordance with 3.14.1 and 3.14.2.
b.M-GARD W550. The letters "PB" shall be annotated on all pallets subjected
to the M-GARD W550 (zinc naphthenate emulsifiable) preservative treatment in accordance
with 3.14.1 and 3.14.2.
c. M-GARD W510. The letters "PC" shall be annotated on all pallets subjected
to either the Cunapsol 5 (copper naphthenate) or the M-GARD W510 (copper naphthenate)
preservative treatment in accordance with 3.14.1 and 3.14.2.
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