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.
Anybody want to share a bottle of red? A group of Chinese winemakers have claimed the new world record for the worldâs biggest ever bottle of wine. The 15ft high bottle contains an astonishing 1,850 litres of wine, produced by Wang Chen Wines in Liaoning, northern China. Thatâs over three times the amount held by the previous record-holders, Austrian winemakers Kracher, whose bottle held 490 litres of Grande Cuvee TBA NV No.7 2005.