Flash point means the lowest temperature of a liquid at which its vapours form a flammable mixture with air;
High voltage bus means the electrical circuit, including the coupling system for charging the REESS that operates on high voltage.
Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);
Supply Pipe means any part of a service pipe which a water undertaker could not be, or have been required to lay under section 46 of the Water Industry Act 1991; and
Oxides of nitrogen means the sum of the volume mixing ratio (ppbv) of nitrogen monoxide (nitric oxide) and nitrogen dioxide expressed in units of mass concentration of nitrogen dioxide (μg/m3);