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Fumes generated by soldering A woman at a bench working in front of a filtration system. A fume extractor is a device used to filter aerosolized chemical byproducts of the soldering process. [1] These devices take many forms depending on the project size and application, from small ductwork to entire fume hoods. [2]
Animated sequence of how a bore evacuator works. A bore evacuator. A bore evacuator or fume extractor is a device which removes lingering gases and airborne residues from the barrel of an armored fighting vehicle's gun after firing, particularly in tanks and self-propelled guns.
The price had risen to $3,000 before eBay closed the auction. [8] [9] In May 2006, the remains of U.S. Fort Montgomery, a stone fortification in upstate New York built in 1844, were put up for auction on eBay. The first auction ended on June 5, 2006, with a winning bid of US$5,000,310.
Industrial Extraction is the process by which harmful air contaminants are removed from the work place for the protection of employees and the environment. [1]In the UK, the Health and Safety Executive has implemented COSHH regulations to ensure all industrial workplaces protect the health of their employees via effective Local Exhaust Ventilation (LEV). [2]
The fumes liberated during soldering have adverse health effects, and volatile organic compounds can be outgassed during processing; The solvents required for post-soldering cleaning of the boards are expensive and may have adverse environmental impact; In special cases the drawbacks are sufficiently serious to warrant using fluxless techniques.
The more common lead-free solder systems have a higher melting point, e.g. a 30 °C typical difference for tin-silver-copper alloys, but wave soldering temperatures are approximately the same at ~255 °C; [47] however at this temperature most typical lead-free solders have longer wetting times than eutectic Pb/Sn 37:63 solder. [49]
The two conflicting legal doctrines covering oil and gas extraction are the rule of capture, and the correlative rights doctrine. Which of the doctrines applies in a particular case depends on state law, which varies considerably from state to state, or in the case of the federal offshore zone, on U.S. federal law.
Car auctions United States — [5] June 22, 1999: Alando: Auction house Germany $ 43,000,000 [6] October 1999: Blackthorne Listing tool United States — [7] June 13, 2000: Half.com: Online marketplace United States $ 318,000,000 [8] December 12, 2000: Precision Buying Service [note 1] E-commerce payment systems United States — [9] January 8 ...