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.
A 380,000-litre bottle with an adjacent warehouse goes on sale for more than a quarter of a million pounds - but how many bottles of the tomato sauce could fill it if we tried? Tourists flock to see a 380,000-litre ketchup bottle, dubbed the World's Largest Bottle of Catsup, on sale for $500,000 (Â£295,000). Owner Larry Eckert is selling the 65-year-old, 170-foot (52-metre)-tall landmark and adjacent warehouse but despite its name, the 380,000-litre tower has never held ketchup.