Alternative Test Method for Blower Door Test.

We have a medium high-rise residential tower on Abu Dhabi, 4 apartments each floor, the return and supply for each flat are not connected with each others, the fire damper is located above the false ceiling faraway from ceiling opening door, not possible to access this point and to close off the damper temporary, also the damper can't be closed from automation network because it is not automatically controlled/monitored. -Under ASTM E779-03 Procedure, item # 8.2 “HVAC balancing dampers and registers should not be adjusted. Fireplace and other operable dampers should be closed unless they are used to pass air to pressurize or de-pressurize the building.” -Obviously there will be a leak when conduct the blower door test since the damper will stay open adverse to test procedure. -We would recommend using: "BSEN 13829:2001 'Determination of Air Permeability of buildings by Fan Pressurization' and ATTMA TS L1 'Measuring Air Permeability of Building Envelopes' since the test standard is approved by ABU Dhabi Green Building Rating System "Estidama" -Under the later All openings inside the apartment (includes A/C grill) will be sealed with polyethylene sheet, hard board and masking tape, adverse to the former test (ASTM) with regard to keep forced air unit supply and return ducts without sealing, solving the problem of opened damper. -Do you think GBCI will approve the mentioned alternative test method.