Louisiana Administrative Code
Title 55 - PUBLIC SAFETY
Part V - Fire Protection
Chapter 50 - Boiler Construction, Maintenance, Inspection and General Use
Subchapter C - Existing Installations- Power Boilers
Section V-5020 - Age Limits of Existing Boilers

A. The age limit of any boiler of nonstandard construction, installed prior to the date the Act became effective, shall be 30 years except that, a boiler having other than a lap-riveted longitudinal joint, after a thorough internal and external inspection, and when required by the inspector, a hydrostatic test of 1-1/2 times the allowable working pressure held for a period of at least 30 minutes during which no distress or leakage develops, may be continued in operation at the working pressure determined by calculation. The age limit on any non-standard boiler having lap-riveted longitudinal joins and operating at a pressure in excess of 50 psig shall be 20 years. This type of boiler, when removed from an existing setting shall not be reinstalled for a pressure in excess of 15 psig . A reasonable time for replacement, not to exceed one year, may be given at the discretion of the assistant secretary.

B. The age limit of boilers of standard construction installed prior to the date this law, Title 23, Chapter 5, Page III, of the Louisiana Revised Statutes of 1950, became effective shall be dependent on thorough internal and external inspection and where required by the inspector, a hydrostatic pressure test not exceeding one and 1/2 times the allowable working pressure, if the boiler, under these test conditions, exhibits no distress or leakage, it may be continued in operation at the working pressure determined by calculation.

C. The shell or drum of a boiler in which a lap seam crack develops along a longitudinal lap-riveted joint shall be condemned. A lap seam crack is a crack found in lap seams extending parallel to the longitudinal joint and located either between or adjacent to rivet holes.