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// CODE SNIPPET

§27-753 Index for Ventilation

NYC 1968 Code (Vol I) > 12 Light, Heat, Ventilation and Noise Control > 7 Standards of Mechanical Ventilation > §27-753 Index for Ventilation
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The index for ventilation for any room or space shall be computed by adding the following:

(a) The contents per occupant, in cubic feet.

(b) The floor area per occupant, times ten, in square feet.

(c) The clear, unobstructed openable area of windows, skylights, and other sources of natural ventilation per occupant times two hundred, in square feet. In all cases, the number of occupants used in computing the index for ventilation shall be the maximum number who will occupy the room or space simultaneously during any two-hour period.

Related Code Sections


§27-753 Light, Heat, Ventilation and Noise Control, Index for Ventilation
The index for ventilation for any room or space shall be computed by adding the following: (a) The contents per occupant, in cubic feet. (b) The ...
NYC 1968 Code (Vol I) > 12 Light, Heat, Ventilation and Noise Control > 7 Standards of Mechanical Ventilation > §27-753 Index for Ventilation
§27-750 Light, Heat, Ventilation and Noise Control, Area of Ventilating Openings
or spaces, the free openable area shall be used to calculate the index for ventilation (section 27-753 of article seven of this subchapter), which ...
NYC 1968 Code (Vol I) > 12 Light, Heat, Ventilation and Noise Control > 6 Standards of Natural Ventilation > §27-750 Area of Ventilating Openings
Article 6 Ventilation [PDF] (page 8)
to service additional space. 6. THE INDEX OF VENTILATION. Cubic foot contents per person plus ten times floor area per person in square feet plus one ...
NYC 1938 Code [PDF] > 6 Ventilation
§27-765 Light, Heat, Ventilation and Noise Control, Ventilation for Schools
rooms of instruction, and administrative rooms, where the index for ventilation is less than one thousand six hundred fifty, shall have a supply ...
NYC 1968 Code (Vol I) > 12 Light, Heat, Ventilation and Noise Control > 8 Ventilation of Special Spaces > §27-765 Ventilation for Schools
Article 6 Ventilation [PDF] (page 4)
area. e. If the index is above 1,650, mechanical ventilation shall be unnecessary. f. In order to be credited as such under the provisions ...
NYC 1938 Code [PDF] > 6 Ventilation
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