lactometer การใช้

• In 1881 he introduced an apparatus for the testing of milk ( lactometer, patent # 241655 ).
• He obtained aid from the Board of Health in suppressing the gases emanating from the gas houses, and opposed its action in adopting the " lactometer with the senses " as the sole means of testing the purity of milk.
• After breaking the Tatarinov's lactometer, getting into a fight with Katya over that, and Katya's taking the blame, they become fast friends and Sanya frequents the Tatarinov house, helping the old woman with the household.
• Hydrometers are calibrated for different uses, such as a lactometer for measuring the density ( creaminess ) of milk, a saccharometer for measuring the density of sugar in a liquid, or an alcoholometer for measuring higher levels of alcohol in spirits.