This legislation has been repealed.
Natural gas must be
odorized by the addition to the gas of an odorant, the nature and rate of
which is approved from time to time by the Director so that —
(a) the
gas has a distinctive, unpleasant and non-persistent odour; and
(b) when
the gas is discharged, the odour indicates throughout its discharge the
presence of gas down to the lower explosive limit.