(1) A breath sample to be analyzed at a certified installation shall be collected only by certified personnel.
(2) The sample shall be collected only after the subject has been under observation for an uninterrupted period of no less than twenty (20) minutes immediately prior to collection.
(3) The type of device and the procedures or techniques shall be Office of Alcohol Testing-approved and only certified personnel may operate the device.
(b) Sample size. The quantity of breath shall be established by direct volumetric measurement or by collection of a fixed breath volume at a constant temperature.