Section 11 in The Punjab State Board for the Prevention and Control of Air Pollution Rules, 1983
11. Manner of taking samples of air or emission.
(1)The occupier of the premises shall provide portholes and platforms conveniently located for easy access to potholes and all other necessary facilities for taking samples of air or emission from any chimney, flue, or duct, or any other outlets.(2)(a)The samples of air for gaseous emission shall be taken either into an absorbing solution and/or in a suitable container.(b)The samples of air for particular matter shall be taken isokinetically.
