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NFP 20 502 : 1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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METHODS OF TESTING WINDOWS - AIR PERMEABILITY TEST
01-10-2007
12-01-2013
Describes the method used for air permeability test of windows fitted in exterior walls and supplied in the form of finished units in operating conditions. Applies to all windows, including door height windows made of any material, in the actual operating conditions in which they should be used and fitted according to the manufacturer's recommendations. Does not apply to the joints between windows and surrounding components and material.
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