The board of chosen freeholders of any county may appoint a general storekeeper for a term of 3 years. The storekeeper shall be responsible for the keeping in good condition the materials and supplies sent to him and shall deliver such materials and supplies to the county institutions, departments and officials according to the directions of the board and upon proper requisition. He shall perform such functions and duties as may be required and necessary.
N.J.S. § 40A:9-31