Testing milk and its products; a manual for dairy students, creamery and cheese factory operators, food chemists, and dairy farmers . added with cc. pipette. If many tests are made, the water ismore conveniently and quickly filled into the test bottlesby drawing it from a small copper reservoir or tin pailsuspended over the testing machine.^ The flow ofwater through a rubber tube connected with the reser-voir, is regulated by means of a pinch cock. Thewater must be hot when added to the test bottles so as tokeep the fat in a melted condition until the readings aretaken. Most turbine te
Testing milk and its products; a manual for dairy students, creamery and cheese factory operators, food chemists, and dairy farmers . added with cc. pipette. If many tests are made, the water ismore conveniently and quickly filled into the test bottlesby drawing it from a small copper reservoir or tin pailsuspended over the testing machine.^ The flow ofwater through a rubber tube connected with the reser-voir, is regulated by means of a pinch cock. Thewater must be hot when added to the test bottles so as tokeep the fat in a melted condition until the readings aretaken. Most turbine testers are now made with avery convenient water reservoir attached to the tester(figs. 23-25). 1 Ordinary tinware rusts very soon wben water is left standing in it,and copper reservoirs are therefore more economical. 70 Testing Milk and Its Products. The use of zinc or steel oilers, or perfection oil canshas been suggested, as a handy and rapid method ofadding hot water to the test bottles. 5.—Modifications of the Babcock Test. 82. The Russian milk test. The same chemical andmechanical principles applied in the regular Babcock. Fig. 56. The Kussian test. test, are used in the Eassian milk test, exceptthat in this case the machine in which thebottles are whirled, and the bottles them-selves, are so constructed that the latter canbe filled with hot water while the machine isrunning at full speed, thus saving time andtrouble incident to the stopping of the testerand filling the bottles by means of a pipette. =-2 =-05-r1-2|-3 |-s |-7 5 i E 5 15 Fig, bottle The milk-measuring pipette (fig. 28) and the Ru^ssiant« measure used in the Eussian test are one-half of theordinary size, and the test bottles are made in two pieces,with a detachable narrow graduated stem (see fig. 27).The machine is substantially made of cast iron; it is pro- The Babcock Test. 71
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectmilk, bookyear1904
