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.
Creme Puff (August 3, 1967 â August 6, 2005) was an American cat who died aged 38 years and 3 days (or 168 cat years). She was the oldest cat ever recorded, according to the 2010 edition of Guinness World Records. Creme Puff lived with her owner, Jake Perry, in Austin, Texas. Perry also owned Granpa, who was claimed to have been born in Paris in 1964 and died 1998, aged 34 years and 2 months. Granpa was posthumously awarded 1999 Cat of the Year by Cats & Kittens magazine. Granpa was featured in an earlier edition of Guinness World Records.