Question Regarding Ventilation Standards for NPP

[/I=J/S=PRESLEY/O=AECB.CCEA@mhs-atomcon.attmail.com]

     I have a general question for RADSAFERs.
     
     Can anyone please supply references for any
     ventilation standards which apply to Nuclear Power Plants?
     
     I am primarily interested in requirements for active areas
     such as decontamination facilities.
     
     I am  particularly interested in general room ventilation although
     fumehood standards are of interest as well.
     
     Thanks for Your Time
     
     James Presley
     Health Physicist
     jkp@fox.nstn.ca