The State Chemist is authorized to employ assistant chemists, octane machine operators, and other employees to assist him in the proper performance of duties assigned him under the provisions of this chapter, or under the provisions of any other law or laws assigned to him for administration. The State Chemist is hereby authorized and directed to purchase such chemical apparatus, machines, and other equipment as may be necessary for performing the tests of all products included in this chapter, and to provide suitable housing for the same at the State Chemical Laboratory, and to purchase from time to time such chemicals and general supplies and equipment as may be necessary for the maintenance of the laboratory in which such tests are carried out.