Differentiate between the various qualities of reagents which are ordinary, analar and industrial quality reagent

The difference between ordinary, analar and industrial reagents is the in the purity. Ordinary reagents are those whose purity meets the standard. Analar reagents are used in chemical analysis and they are of high purity but with known contaminants which again illustrates their use in chemical analyses. Finally the industrial reagents are not pure enough and they are used for industrial purposes as well for commercial use.