13Conditions under which certain services to be provided

13 Conditions under which certain services to be provided

Items 11309, 11312, 11315, 11318 and 11321 apply only to a service provided:

(a) in conditions that allow the establishment of determinate thresholds; and

(b) in a sound-attenuated environment with background noise conditions that comply with Australian Standard AS1269‑1983 of the Standards Association of Australia, as in force on 1 August 1987; and

(c) using calibrated equipment that complies with Australian Standard AS2586-1983 of the Standards Association of Australia, as in force on 1 August 1987.