Q. How do banks check the purity of gold?

Answer

The hallmarking of gold in India is done using the BSI which is a recognized hallmarking procedure. The presence of this mark on gold attests to the fact that the item in question complies with the Bureau of International Standards. The carat grading scale is another key method that is used to determine the gold's purity. Carat is the unit of measurement used to determine the degree of purity of gold jewellery. Using Karatmeter is also very common.