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[接上页] (3) On remeasurement of a ship any certificate of Hong Kong tonnage in force in relation to that ship shall be delivered up to the Certifying Authority and the Certifying Authority shall issue a new certificate in place thereof. (74 of 1990 Sch. 5) PART II A. GROSS TONNAGE 4. Components of gross tonnage (1) Subject to the provisions of Part III of this Schedule, the gross tonnage of a ship shall be the sum of- (a) the underdeck tonnage of the ship ascertained in accordance with the provisions of paragraph 5 and paragraph 1 of Rule I of Appendix 1 to this Schedule; (b) the tonnage of between deck space between the second deck and the upper deck ascertained in accordance with the provisions of paragraph 2 of the said Rule I; (c) the tonnage of permanently closed-in spaces on or above the upper deck including that of breaks situated above in line of the deck but excluding- (i) the tonnage of hatchways described in paragraph 6; (ii) the tonnage of framed-in spaces on or above the upper deck which contain any part of the propelling machinery or which light or ventilate space appropriated for such machinery; (iii) any space excluded by virtue of the provisions of paragraph 7, ascertained in accordance with the provisions of paragraphs 3, 4 and 5 of the said Rule I;(d) the tonnage of hatchways described in paragraph 6, ascertained in accordance with the provisions of that paragraph and paragraph 5 of the said Rule I; (e) the tonnage of framed-in spaces on or above the upper deck which contain any part of the propelling machinery or which light or ventilate space appropriated for such machinery, ascertained in accordance with the provisions of paragraph 5 of the said Rule I, subject to the conditions that- (i) the owner of the ship has made written application to the Certifying Authority for the inclusion of such spaces in the propelling machinery space of the ship; (ii) the are permanently marked by a notice stating their purpose; and (iii) they are certified by a surveyor as safe and seaworthy and properly constructed for their purpose, as reasonable in extent for that purpose, and as being such that they cannot be used for any other purpose.(2) In the case of a ship the tonnage of which below the upper deck has been measured in accordance with Rule II of Appendix 1, that tonnage shall be included instead of the tonnages specified at (a) and (b) in sub-paragraph (1). (3) For the purpose of this Schedule and Appendices 1 to 5 the expression "permanently closed-in spaces on or above the upper deck" (上甲板或以上的永久封闭舱位) shall include- (a) a poop, bridge or forecastle notwithstanding the presence of an opening in the end transverse bulkhead thereof, unless the opening extends from deck to deck for one half or more of the breadth of the deck in way of the bulkhead; (b) a deck house notwithstanding the presence of an opening in one of the boundary bulkheads thereof exposed to the weather, unless the opening extends from deck to deck for one half or more of the length of the bulkhead in which it is situated and is 4 feet wide or more; (c) a structure extending from side to side of the ship notwithstanding the presence in it of an opening in the ship's side, unless the opening extends for one half or more of the length of the space which it serves and exceeds in height one third of the distance from deck to deck in way of the opening or 2 feet 6 inches, whichever is the greater; (d) a passage way at the ship's side, unless it is 4 feet wide or more and is completely open to the weather at one end, or both ends, of its length; (e) a recess, unless it extends from deck to deck for 3 feet or more of its width and is exposed to the weather; and (f) any space having an opening in the deck over being a deck exposed to the weather, unless the area of the opening is one quarter or more of the deck area over the space. 5. Underdeck tonnage The underdeck tonnage of a ship shall be the sum of- (a) the tonnage of the space below the tonnage deck bounded by- (i) the tonnage deck; (ii) the upper surface of the double bottom tanks, open floors or ceiling as the case may be; and (iii) the inner face of the timbers, frames or sparring as the case may be, measured in accordance with the provisions of paragraph 1 of Rule I of Appendix 1 to this Schedule, but subject to such limitations specified in Appendix 2 as may be applicable in the circumstances of the case, and excluding the tonnage of breaks above the line of the tonnage deck; and(b) the tonnage of shaft bossings and any other appendages forming part of the hull of the ship below the tonnage deck whether or not they project beyond the extreme points of measurement of that deck. 6. Tonnage of hatchways The tonnage of all hatchways leading to space included in the gross tonnage of the ship other than internal hatchways totally enclosed within such space shall be measured in accordance with paragraph 5 of Rule I of Appendix 1 to this Schedule and from the aggregate thereof there shall be deducted 1/2 of 1 per cent of the ship's gross tonnage excluding such aggregate. The remainder (if any) shall be the tonnage of hatchways, customarily referred to as "excess of hatchways" (舱口超额吨位), to be included in the gross tonnage of the ship. |