Air permeability

Convert air permeability between different country norms.

From	To	CH l/m2/s @ 200 Pa (1)

CH	l/m2/s @ 200 Pa (1)
FR	m3/m2/h @ 200 Pa (1)	0.278
DE	l/dm2/min @ 200 Pa (1)	1.67
US	ft3/ft2/min @ 125 Pa (2)	~ 8.1

From	To	FR m3/m2/h @ 200 Pa (1)

CH	l/m2/s @ 200 Pa (1)	3.6
FR	m3/m2/h @ 200 Pa (1)
DE	l/dm2/min @ 200 Pa (1)	6
US	ft3/ft2/min @ 125 Pa (2)	~ 29.2

From	To	DE l/dm2/min @ 200 Pa (1)

CH	l/m2/s @ 200 Pa (1)	0.6
FR	m3/m2/h @ 200 Pa (1)	0.167
DE	l/dm2/min @ 200 Pa (1)
US	ft3/ft2/min @ 125 Pa (2)	~ 4.9

From	To	US ft3/ft2/min @ 125 Pa (2)

CH	l/m2/s @ 200 Pa (1)	~ 0.123
FR	m3/m2/h @ 200 Pa (1)	~ 0.0342
DE	l/dm2/min @ 200 Pa (1)	~ 0.205
US	ft3/ft2/min @ 125 Pa (2)