16. The installation of all pressure vessels in public buildings and industrial establishments must be inspected by an inspector before such vessels are used. The installation of every refrigerating plant using more than ten kilograms of refrigerant must be so inspected wherever the installation is made.
All pressure vessels installed in public buildings and industrial establishments must be inspected annually by an inspector or by a stationary engineman duly qualified for that kind of work and authorized by the chief inspector. Such inspection is required for every refrigerating plan run by a motor having a power of over three kilowatts, wherever it may be installed.
R. S. 1964, c. 156, s. 16; 1977, c. 60, s. 32.