Search results
Results from the WOW.Com Content Network
A study cited in Forest Products Journal found 12–13% of the chromated copper arsenate leached from treated wood buried in compost during a 12-month period. Once these chemicals have leached from the wood, they are likely to bind to soil particles, especially in soils with clay or soils that are more alkaline than neutral.
CCTV-12 社会与法; Country: China: Broadcast area: Worldwide: Programming; Picture format: 1080i HDTV (downscaled to 576i for the SD feed) Ownership; Owner: China Central Television: History; Launched: 12 May 2002: Former names: China Central Television Western Channel (2002 - 2004) Links; Website: CCTV-12: Availability; Terrestrial; Digital ...
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.
Sawdust coming from wood being cut with a power tool, releasing fine wood particles into the air. Any type of woodworking that involves cutting, either by hand or machine, releases sawdust (or wood dust). Because fine sawdust can float through the air, it can be easily inhaled without proper protection, leading to damaging injuries to a ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
It is one of six international language news channels run by CGTN, under the control of the Propaganda Department of the Chinese Communist Party. [1] CGTN America is headquartered at 1099 New York Avenue NW, Suite 200 in Washington, D.C. , and manages bureaus in New York City, Washington, D.C., as well as spanning coverage in North and South ...
One of the early treatments to "fireproof lumber", which retard fires, was developed in 1936 by the Protexol Corporation, in which lumber is heavily treated with salt. [37] Wood does not deteriorate simply because it gets wet. When wood breaks down, it is because an organism is eating it. Preservatives work by making the food source inedible to ...
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 ...