Dear Aspirant ,

Limit test is defined as quantitative or semi quantitative test designed to identify and control small quantities of impurity which is likely to be present in the substance.

Limit test is generally carried out to determine the inorganic impurities present in compound. In short, limit test is nothing but to identify the impurities present in the substance and compare it with standard.

Importance of Limit tests:

To find out the harmful amount of impurities

To find out the avoidable/unavoidable amount of impurities

Hope this information helps you,

Thank you .