INTERNATIONAL CONVENTION SAFETY OF LIFE AT SEA. 259 



important repairs or renewals are made. The survey shall be such as to insure that the 

 necessary repairs or renewals have been effectively made, that the material and workman- 

 ship of such repairs or renewals are in all respects satisfactory, and that the vessel com- 

 plies in all resiJects with the provisions of this Convention and of the detailed regulations 

 promulgated as a result thereof by the Government of the State to which the vessel belongs. 



Akticle XXVI. 



The detailed regulations referred to in Article XXV shall prescribe the requirements to 

 be observed as to the initial and subsequent hydraulic tests to which the main and auxiliary 

 boilers, connections, steam pipes, reservoirs which are subjected to high pressure, and fuel 

 tanks for oil motors are to be submitted, as regards the test pressure to be applied, and the 

 intervals between two consecutive tests. 



Main and auxiliary boilers, connections, tanks, reservoirs, and steam piping more than 

 102 millimeters (4 inches) in diameter shall be satisfactorily tested by hydraulic pressure 

 when new and thereafter periodically. 



The initial and subsequent tests of the boilers shall take place under the following con- 

 ditions : 



The test pressure shall be not less than one and a half times the working pressure, or 

 five atmospheres above the working pressure, whichever is the less. If the pressure at the 

 initial test does not exceed the working pressure by more than five atmospheres, the in- 

 terval between two consecutive tests shall not exceed two years. With a higher pressure 

 at the initial test, this interval may be increased, and if the pressure at the initial test is 

 double the working pressure, the interval may be six years, but it shall in no case exceed 

 that period. 



LIFE-SAVING APPLIANCES AND FIRE PROTECTION. 



Article XXVII. 



STANDARD TYPES OF BOATS. 



The standard types of boats are classified as follows: 



I 



(Entirely rigid sides.) 



II 



(Partially collapsible sides.) 



Class. Section. Type. 



A Open. Internal buoyancy only. 



B Open. Internal and external buoyancy. 



C Pontoon. Well deck ; fixed watertight bul- 

 warks. 



A Open. Upper part of sides collapsible. 



B Pontoon. Well deck ; collapsible watertight 

 bulwarks. 



C Pontoon. Flush deck; collapsible water- 

 tight bulwarks. 



Motor boats may be accepted if they comply with the requirements laid down for boats 

 of the first class, but only to a limited number, which number shall be determined by each 

 Government in its own regulations. 



