LaMotte first introduced DPD into the American market in 1969 in its original foil package that required the user to carefully tear open a small pocket formed in the foil that surrounded the tablet. The foil strip had to be cautiously tilted to dispense the tablet into a desired sample tube. The new foil blister carries the customary 10 tablets per strip but in a more convenient and compact 3.25" by 1.35" size.
