## What is the working principle of Lactometer?

Lactometer is a small glass instrument that is used to test the purity of the milk. It works on the principle of specific gravity of milk (Archimede’s Principle). It measures the relative density of milk with respect to water. If the specific gravity of a sample of milk is within the approved ranges, the milk is pure.

Which principle is applied in the working of Lactometer 1 point?

Lactometer is basically a hydrometer which works as per Archimedes Principle.

On which principle Lactometer is based on?

Archimedes Principle
Archimedes Principle is used in lactometers which are used to determine the purity of milk. Archimedes Principle states that the body submerged (partially or fully) in a fluid will be buoyed (afloat) up by force equal to the weight of the fluid displaced.

### How does Lactometer show the purity of milk?

1. Step 1- Whenever you want to test the milk purity, you just put the lactometer in milk.
2. Step 2- If it sinks up to the mark ‘M’ which is mentioned in the lactometer that means milk is pure or if not that means milk is impure.
3. Step 3- If the milk is mixed in water then it would sink higher than the mark ‘M’.

What is the working principle of Lactometer and hydrometer?

The hydrometer & lactometer is based on Archimedes’ principle. Archimedes’ principle :- when a body is immersed partly or wholly in a fluid, it is buoyed up with a force equal to the weight of the fluid displaced by the body.” Thus, the lower the density of the substance, the farther the hydrometer will sink.

What is the unit of Lactometer?

Model ID Lactometer with 100 ml Measuring cylinder For Testing Milk Purity at Home Hydrometer Milk Testing meter Thermometer 1 Unit
Model Name Lactometer with 100 ml Measuring cylinder For Testing Milk Purity at Home Hydrometer Milk Testing meter Thermometer 1 Unit
Color Clear
Sales Package 1 Unit Lactometer With 100ml Jar

#### How Lactometer is based on Archimedes Principle?

It works on the principle of Archimede’s principle that a solid suspended in a fluid will be buoyed up by a force equal to the weight of the fluid displaced. If the milk sample is pure, then the lactometer floats on it and if it is adulterated or impure, then the lactometer sinks.

How Lactometer is based on Archimedes principle?

What is Lactometer test for milk?

Milk Lactometer: A lacto meter is an instrument that is used to check for the purity of milk by measuring its density. An instrument to find out the content of the water in the milk or to test the richness of the milk is thus termed as ‘lactometers’.

## What is SNF in milk?

Milk fat and Solids-Not-Fat (SNF) are important constituents of milk that determine its price. In India the problem of low fat and SNF in milk is quite common and leads to economic losses.

What is Lactometer used for?

A lactometer is an instrument that is used to check for the purity of milk by measuring its density. It can find out the content of water in the milk or to test the richness of the milk. The lactometer works on the principle of gravity of milk.

What are the two type of Lactometer?

The quevenne lactometer – designed to determine the specific gravity of milk at 15.5ºC (60ºF). Zeal Lactometer – designed to determine the specific gravity of milk at 29º C at 84º C. The Watson lactometer – is applied at a temperature of 39ºC. ISI lactometer calibrated at 27ºC is used.