(c)  
In the case of pressurised aeroplanes first issued with an individual CofA after 8 November 1998 and operated at pressure altitudes above 25 000 ft, or operated at pressure altitudes at, or below 25 000 ft under conditions that would not allow them to descend safely to 13 000 ft within 4 minutes, the individual oxygen dispensing units referred to in (b)(3) shall be automatically deployable.

(d)  
The total number of dispensing units and outlets referred to in (b)(3) and (c) shall exceed the number of seats by at least 10 %. The extra units shall be evenly distributed throughout the passenger compartment.

(e)
Notwithstanding (a), the oxygen supply requirements for cabin crew member(s), additional crew member(s) and passenger(s), in the case of aeroplanes not certified to

fly at altitudes above 25 000 ft, may be reduced to the entire flying time between 10 000 ft and 13 000 ft cabin pressure altitudes for all required cabin crew members and for at least 10 % of the passengers if, at all points along the route to be flown, the aeroplane is able to descend safely within 4 minutes to a cabin pressure altitude of 13 000 ft.

(f)  
The required minimum supply in Table 1, row 1 item (b)(1) and row 2, shall cover the quantity of oxygen necessary for a constant rate of descent from the aeroplane’s maximum certified operating altitude to 10 000 ft in 10 minutes and followed by 20 minutes at 10 000 ft.

(g)  
The required minimum supply in Table 1, row 1 item 1(b)(2), shall cover the quantity of oxygen necessary for a constant rate of descent from the aeroplane’s maximum certified operating altitude to 10 000 ft in 10 minutes followed by 110 minutes at 10 000 ft. 

(h)  
The required minimum supply in Table 1, row 3, shall cover the quantity of oxygen necessary for a constant rate of descent from the aeroplane’s maximum certified operating altitude to 15 000 ft in 10 minutes.

Table 1: Oxygen minimum requirements for pressurised aeroplanes
Supply for:  Duration and cabin pressure altitude 
1) Occupants of flight  (a) The entire flying time when the cabin pressure altitude 
crew compartment seats  exceeds 13 000 ft. 
on flight crew compartment duty  (b) The remainder of the flying time when the cabin pressure altitude exceeds 10 000 ft but does not exceed 13 000 ft, after the initial 30 minutes at these altitudes, but in no case less than: (1) 30 minutes’ supply for aeroplanes certified to fly at altitudes not exceeding 25 000 ft; and (2) 2 hours’ supply for aeroplanes certified to fly at altitudes of more than 25 000 ft. 
2) Required cabin crew  (a) The entire flying time when the cabin pressure altitude 
members  exceeds 13 000 ft, but not less than 30 minutes’ supply. (b) The remainder of the flying time when the cabin pressure altitude exceeds 10 000 ft but does not exceed 13 000 ft, after the initial 30 minutes at these altitudes. 
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(131)