Lactometer and Test Tube] The simplest method of testing the acidity is to procure a few little books of blue and red litmus test papers, and these can be had from any philosophical instrument maker or laboratory furnisher.
As there are many inaccurate instruments in the market, it is necessary to go to a reputable maker, because an unreliable lactometer is worse than useless.
Care should be taken to wash the lactometer with cold water under the tap, as otherwise the milk will dry on it and render it inaccurate.
The milk to be tested is well mixed, and placed in a deep vessel, and the lactometer placed in it, holding it at first at an angle.
The specific gravity rises as the temperature is lowered and decreases with increase of temperature, so that it is important to make the test at the figure at which the lactometer was graduated, which is usually 60 deg.
The lactometer constructed by Dicas of Liverpool is adapted for the determination of the quality of milk.
In his preliminary remarks he condemns, as utterly unreliable and misleading, the inferences to be drawn from those hydrometric instruments, the lactometer or lactodensimeter, and creamometer.
A very little consideration," he says "will suffice to make intelligible the obliquity of the indications of the lactometer and to show how untrustworthy it must be.
This is very similar to the Quevenne lactometer except that the scale is graduated from 0 to 120 (Fig.
In the following formulas, L equals Quevenne lactometer reading at 60 deg.
When the lactometer reading and fat-content of the milk are known, there are several formulas for calculating the solids not fat.
The reading should be taken when the lactometer is floating free in the milk.
The Quevenne lactometer is graduated to give correct results at a temperature of 60 deg.
The better lactometers have a thermometer with the scale just above or opposite the lactometer scale.
Feeling sure that the lactometer must be at fault, I consulted my friend the doctor, who examined and found it quite correct.
He vowed and declared that the lactometer "no talkee true," and that no water whatever had been added to the milk, adding, that if I did not believe him he would bring a cow to the kitchen door and I could see it milked myself.
With a view to exposing fraud I purchased a lactometer and found the usual proportions of milk and water to be half and half.
The lactometer and cream-gauges showed that the poorest milk came from the poorest-kept cows.
The use of thelactometer and cream-gauges will show this.
A great philanthropist, and distinguished man of the world, has invented a new Lactometer for testing the milk of human kindness.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "lactometer" in a variety of sentences. We hope that you will now be able to make sentences using this word.
