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.
There were also little 12' neon-adorned Catsup bottles all around St. Louis, produced by the same people. On a related note, the same people also produced the Vess Bottle that still stands over the to-be-developed Bottle District. World's Largest Catsup Bottle Stats.