Studies on air infiltration rates in Australia have been few. One study measured 'natural' infiltration rates in unoccupied houses in Melbourne and found that background infiltration rates were 0.33 air exchanges per hour (ACH) (Biggs et. al.1987).ata. Studies on air infiltration rates in Australia have been few. One study measured 'natural' infiltration rates in unoccupied houses in Melbourne and found that background infiltration rates were 0.33 air exchanges per hour (ACH) (Biggs et. al. 1987).
Doctor of Osteopathic Medicine (D.O. or DO) is a professional doctoral degree for physicians and surgeons offered by medical schools in the United States.
OD are the initials after an optometrists name. It stands for Doctor of Optometry. Yes, it is true that DO is for Doctor of osteopathy, but OD is for Doctor of Optometry contâ¦rary to the imbecile who answered before.