302336-1941-Merchant-Shipping-Ord--1899-Instructions-to-Government-surveyors-as-to-the-survey-of-passenger-accommodation — Page 8

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THE HONG KONG GOVERNMENT GAZETTE, JANUARY 31, 1941.

(d) At least 830 cubic feet of fresh air per hour for each adult must be delivered under normal seagoing conditions, with an increase of 33 per cent. in the case of compartments referred to in the latter part of sub-paragraph (2) (b).

(4) Hospitals. All hospitals are to be ventilated independ- ently and to the open air. Cowl ventilators should have at least 5 square inches of miet and 5 square inches of outlet area

ૐ per bed with means for controlling the size of the openings. When ventilation is provided by mechanical means the delivery of air should be at least 1,660 cubic feet per hour for each bed provided.

Each isolation hospital is to have separate ventilating arrangements.

(5) Waterclosets, Washplaces and Galleys. These are to be properly ventilated by independent supply and exhaust ventilators to the open air.

(6) The Principal Surveyor of Ships will be prepared to consider departures from these Instructions in any particular case where, in his opinion, exceptional difficulties arise in giving effect to them.

13. LIGHTING OF BETWEEN DECK SPACES, ETC.—(1)— (a) Unberthed passenger accommodation in between decks, bridge spaces and superstructures of a similar character may be regarded as being lighted satisfactorily by day if the provi- sion made for the direct admission of natural light amounts to at least one square inch for every 24 square feet of the gross passenger area.

(b) The lighting is to be reasonably uniformly distributed and in spaces where longitudinal bulkheads of a daylight ex- cluding type, such as machinery casings, are fitted, the measure of illumination required in way thereof is to be determined proportionately.

(c) Side scuttles, if fitted below the bulkhead deck need not be necessarily of the opening type, but should be at least 10 inches clear diameter,

(2)(a) The provision of artificial lighting for such spaces must be not less than one electric lamp for every 300 square feet or part thereof of the gross passenger area. The lamps, each of which is to be not less than 40 watts, are to be apportioned properly throughout, with due consideration for the efficiency of the lighting in way of stairways, life-jacket lockers, etc.

The lamps are to be protected by strong glass covers and substantial metal guards.

Oil lamps or portable electric lamps such as cargo clusters are not to be regarded as suitable means of lighting passenger accommodation,

(b) In exceptional circumstances and subject to being otherwise approved, lower between deck spaces not lighted by natural means may be measured for the accommodation of unberthed passengers provided the number of electric lamps fitted is at least 50 per cent. in excess of the requirements stated in sub-paragraph (2) (a).

(3)—(a) In cases where a self-contained source of power is fitted above the bulkhead deck in accordance with the

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