Looking for VENTILATION standards and sites.

[bebigy]

Hello everyone.
I'm searching for following papers:

CR 1752:1998 - Ventilation for buildings - Design criteria for the indoor environment
ENV 12097:1997 - Ventilation for buildings - Ductwork - Requirements for ductwork components to facilitate maintenance of ductwork systems
EN 13141:2004 [1-10] - Ventilation for buildings.

And also: is there a good forum or site for ventilation and AC engineers?
Thanks, for any information

[selmagis]

[link Point to another website Only the registered members can access]