Receptacles of dangerous petroleum to show warning

All receptacles, containing petroleum shall have a stamped, embossed, painted or printed warning either on the receptacle itself or, when that is impracticable, displayed near the receptacle exhibiting in conspicuous character the words, “PETROL” or “MOTOR SPIRIT”, or an equivalent warning of the dangerous nature of petroleum; Provided that this section shall not apply to (a) any securely stoppered glass, stone-ware or metal receptacle of less than ten litres capacity containing petroleum which is not for sale; or (b) tank incorporated in a motor conveyance, or attached to an internal combustion engine, and containing petroleum intended to be used to generate motive power for the motor conveyance or engine, or (c) a pipe-line for the transport of petroleum, or (d) any tank which is wholly underground, or (e) any class of receptacles which the State Government may, by notification, exempt from the operation of this section.