Definition
The outer protective layer of a tree trunk or branch. Under ISPM-15 regulations, wood packaging materials used in international trade must be debarked, meaning bark must be removed before treatment. Small residual pieces of bark may remain if they are less than 3 cm wide or, if wider, have a total surface area of less than 50 square centimeters. Bark removal is critical because it can harbor insects and pathogens.
Related Terms
ISPM-15
International Standards for Phytosanitary Measures No. 15, an international standard developed by the International Plant Protection Convention (IPPC) that governs the treatment of wood packaging materials used in international trade. ISPM-15 requires that wood packaging be debarked and treated by an approved method — primarily heat treatment or methyl bromide fumigation — to prevent the spread of invasive pests and diseases across borders.
Debarking
The process of removing bark from raw lumber before it is used in pallet manufacturing. Debarking is a mandatory prerequisite under ISPM-15 for any wood packaging material used in international trade. The process is performed using debarking machines that strip bark from logs or lumber. Proper debarking reduces the risk of harboring wood-boring insects and facilitates effective heat treatment penetration.
Phytosanitary
Relating to the health of plants, particularly in the context of preventing the spread of plant pests and diseases through international trade. In the pallet industry, phytosanitary measures refer to the treatments (heat treatment, fumigation) and regulations (ISPM-15) designed to ensure that wood packaging materials do not carry invasive organisms across borders. Phytosanitary certification is required for wood pallets used in international commerce.
Export Pallet
A pallet specifically prepared for use in international shipping, meeting the ISPM-15 requirements for phytosanitary treatment and marking. Export pallets must be made from debarked wood, treated using an approved method (heat treatment or methyl bromide fumigation), and stamped with the internationally recognized ISPM-15 compliance mark. Non-compliance can result in shipment rejection, quarantine, or destruction at the destination port.
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