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.
Keeping Macallan from a three-peat atop the category of most expensive Scotch whiskies ever sold is a former world record holder: the Dalmore 64 Trinitas. As its name might indicate, only three bottles of this single malt were ever released.