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ISPM 15 affects all wood packaging material (pallets, crates, dunnages, etc.) and requires that they be debarked and then heat treated or fumigated with methyl bromide, and stamped or branded [1] with a mark of compliance. This mark of compliance is colloquially known as the "wheat stamp".
Wood treated with this process is often used for cladding or siding, flooring, furniture and windows. For the control of pests that may be harbored in wood packaging material (i.e. crates and pallets), the ISPM 15 requires heat treatment of wood to 56 °C for 30 minutes to receive the HT stamp.
Treated wood pallets must be stamped on two opposite sides, indicating either HT for heat treated or MB for methyl bromide treatment. Pallets made of non-wood materials such as steel , aluminum , plastic , or engineered wood products, such as plywood , oriented strand board , or corrugated fiberboard do not need IPPC approval, and are ...
Currently, the International Plant Protection Convention (IPPC), an international regulatory agency, mandates its 134 signatory countries to comply with the ISPM 15, which requires all dunnage to be heat-treated or fumigated with pesticides and marked with an accredited seal. There are several instances in which foreign insects have come ashore ...
Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
Three of the processes are performed in one step, using oil (oil-heat treatment), nitrogen (Reti wood) and steam (Le-Bois Perdure). [1] The Thermo wood process consists of drying, heat treatment and finally cooling/conditioning, and takes up to 72 hours. [4]
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