(2)Exceptions. - Nothing in this rule shall apply to-(a)[ deleted;](b)vessels made of ferrous materials having an internal maximum permissible working pressure not exceeding 1 Kg/sq. cm. (15 Lbs./ sq. inch.);(c)steam boilers, steam and feed pipes and their fitting coming under the purview of Indian Boilers Act, 1923 (V of 1923);(d)metal bottles or cylinders used for storage of transport of compressed gases or liquified or dissolved gases under pressure covered by the Gas Cylinder Rule, 1940 framed under the Indian Explosives Act, 1884 (IV of 1884);(e)vessels is which internal pressure is due solely to the static head of liquid;(f)vessels with a nominal water capacity not exceeding 500 liters connected in a water pumping system containing air that is compressed to serve as a cushion;(g)vessels for unclear energy applications;(h)refrigeration plant having a capacity of 3 tons or less or refrigeration in 24 hours; and(i)working of cylinders of steam engines or prime mover feed pumps and steam steps; turbine casings; compressor cylinders; steam separators of dryers; steam stramers; steam; de-super heaters; oil seed operators; air receivers for fire sprinkler installations; air receivers; of monotype machines provided the maximum working pressure of the air receiver does not exceed 1.33 Kg. f/ cm 2 (20 Lbs/ sq. in) and the capacity 84.95 liters (3 cu.ft.); air receivers electrical breakers; air receiver of electrical relay; air vessels on pumps pipe/coils, accessories of instruments and appliances such as cylinders and piston assemblies use for operating relays and interlocking appear of guards; vessels with liquids subjected to static head only; and hydraulically operating cylinders other than any cylinder communicating with an air loaded accumulator.
