The Acid Demand Value (ADV) Test measures the amount of basic material present in the sand that is soluble in a dilute acid solution. Since the reaction which cures the resin in many chemical binder systems is acid catalyzed, and since the acid is very mild, the presence of the basic material which can neutralize this weak acid will retard the curing reaction. The ADV of the sand should be monitored, since drastic changes can require a catalysts modification. The Acid Demand Value (ADV) Test Kit includes a digital magnetic stirrer, specialized stir wedge, two titrating burettes, heavy duty stand, beaker, dual self-zeroing burette kit, advanced pH/mV/temperature meter with electrode and electrode arm kit. Chemicals are not included.