Tanks; construction, testing; underwriter's label.

Sec. 20. All such tanks shall be welded, brazed or riveted and shall be heavily coated outside with asphaltum or other rust-resisting material. All tanks shall be tested for leakage and shall be tight at 5 pounds air pressure. All tanks having a capacity in excess of 275 gallons shall bear the underwriter's label. History: 1929, Act 319, Imd. Eff. May 28, 1929; CL 1929, 2627; CL 1948, 125.570