The state department of health shall enforce the provisions of this article. All its inspectors shall have free access to all places, where spirits of turpentine or raw or boiled linseed oil are manufactured, mixed, stored, exposed for sale or sold. They shall have power to open any container, suspected to contain any such products, and take samples therefrom for analysis. The penalties prescribed by section 51:4-15 of this title shall be recovered in actions at law brought by the department in the name of the state.