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.
According to Guinness World Records, the oldest cat ever was Creme Puff, born August 3, 1967 and still living at the age of 37 in 2004. Creme Puff was owned by Jake Perry of Austin, Texas, USA. the oldest living cat is a Burmese called Kataleena Lady who lives in Melbourne, Australia.