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This preservative is also used for remedial treatments to in-service poles including internal/external surfaces at ground or below ground level via brush/trowel, mechanical injection, or bandage wrap. Wood treated with copper naphthenate is specified for exterior above ground, ground contact, below ground and fresh water contact use applications.
Acetylated wood is a type of modified wood that is produced through a chemical modification process and does not contain any toxic substances. [1] It produced from a chemical reaction (named as acetylation), involving acetic anhydride and a modification process to make wood highly resistant to biological attacks by fungi and wood-boring insects and durable to environmental conditions.
A photo of the IPPC seal on a wine shipping crate. International Standards For Phytosanitary Measures No. 15 (ISPM 15) is an International Phytosanitary Measure developed by the International Plant Protection Convention (IPPC) that directly addresses the need to treat wood materials of a thickness greater than 6mm, used to ship products between countries.
The American Wood Protection Association (AWPA) standards for ACQ require a retention of 0.15 lb/cu ft (2.4 kg/m 3) for above ground use and 0.40 lb/cu ft (6.4 kg/m 3) for ground contact. Chemical Specialties, Inc (CSI, now Viance) received U.S. Environmental Protection Agency 's Presidential Green Chemistry Challenge Award in 2002 for ...
Thermally modified wood is engineered wood that has been modified by a controlled pyrolysis process of wood being heated to (> 180 °C) in an oxygen free atmosphere. This process changes to the chemical structures of wood's cell wall components lignin , cellulose and hemicellulose which decreases its hygroscopy and thus increases dimensional ...
Wood, carpentry. Rough carpentry (unfinished) Heavy timbers, log home, timber framing or "post and beam" Bamboo; Engineered wood, dimensional lumber. Stud, joist, rafter; Treated lumber and wood decking; Sheathing, subflooring, panelling. Plywood, shiplap, tongue and groove; Oriented strand board; Parallel strand lumber or "PSL" Glued laminated ...
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