(1)  A licensee must ensure that the natural gas conveyed or supplied by the licensee is tested in accordance with this regulation.

Penalty:  In the case of –

(a) a body corporate, a fine not exceeding 50 penalty units; or

(b) a natural person, a fine not exceeding 20 penalty units.

(2)  The heating value of natural gas conveyed in a pipeline must be determined by testing with –

(a) an instrument which continuously records the heating value of the gas; or

(b) an instrument of a class approved by the Director.

(3)  The accuracy of the instrument used for testing under subregulation (2) must be checked by calibration against nominally pure alkanes or gravimetric mixtures of nominally pure alkanes and other nominally pure fixed gases.

(4)  The relative density of natural gas conveyed in a pipeline must be determined by testing with –

(a) an instrument which continuously records the relative density of the gas; or

(b) an instrument of a class approved by the Director.

(5)  The accuracy of the instrument used for testing under subregulation (4) must be checked by using –

(a) the direct gravimetric measurement method; or

(b) another measurement method approved by the Director.

(6)  The hydrogen sulphide content of natural gas conveyed in a pipeline must be continuously recorded by means of a hydrogen sulphide analyser of a class approved by the Director.

(7)  The accuracy of the hydrogen sulphide analyser used for testing under subregulation (6) must be checked by calibration against a gas of known hydrogen sulphide content.