Standard buffer solutions for pH-meter calibration. pH-meters measure the voltage. developed between two electrodes. immersed in the sample and. compare that value to a calibration. derived from the same electrode. pair and known standards.
Collinsville, Illinois. Built in 1949 in this former catsup company town, the World's Largest Catsup Bottle celebrated its 65th anniversary in 2014. It's the water tower at the old Brooks Catsup Plant and headquarters.
Worldâs biggest bottle auctioned. The worldâs largest bottle of wine was sold for US$55,812 (Â£30,138) at Sothebyâs in New York at the weekend. Dubbed the âMaximusâ, the Bordeaux-style bottle of Beringer Private Reserve Cabernet Sauvignon 2001 (pictured with Beringer winemaster Ed Sbragia) stands nearly as tall as a man and weighs 150lb (68kg) empty.