Internal Inspection—Detailed instructions for the inspection of boilers are contained in Chapter IX of the Regulations. The following general procedure at inspection should be observed :-- At a thorough inspection of a boiler the Deputy Director should, wherever the size and construction of the boiler permit, go inside it and make a thorough inspection of all its internal parts. But before doing so he should satisfy himself that proper provision has been made for disconnection from any other boiler under steam.
Should be find that proper provision for disconnection has not been made or that the boiler has not been properly cleaned or scaled or that it is unreasonably hot he should decline to proceed with the inspection and should report the facts to the Director for orders under section 14(2).
When a boiler is of such a size or its construction is such that the Deputy Director cannot go inside it there must be sufficient sight holes or hand holes provided enable him to see the principal internal parts. If any important part of a boiler is so constructed that the Deputy Director cannot examine it he should report that facts to the Director for orders.