Drop degree

Or call effect price.Some one material with certain the quantity need by another a material creation reaction of capacity.Point a creation in the chemical reaction some the quantity that the standard tries that one result need;Sign tt.For 1/20 of equivalent density.BE make alkali with make carbonic acid hydrogen An convenient in token of ammonia the density of water.In the immunology, pointing to pass a serology method can show the antibody of the certain reaction or the tallest dilution multiple of the antiserum;Such as terminal point dilution degree is 1/100, the effect price(each antibody effect in the serum with 1 ml price) of serum then is 100 antibody units.
Point to use to bite a germ spot's method to measure in the virology of bite a germ body a density.