Reading means the numerical value displayed by an analyser, flow-measuring instrument, sensor or any other measurement devise applied in the context of vehicle emission measurements.
Taximeter means any device for calculating the fare to be charged in respect of any journey in a hackney carriage or private hire vehicle by reference to the distance travelled or time elapsed since the start of the journey, or a combination of both; and
manoeuvring area means that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, excluding aprons;
Filtering facepiece (dust mask) means a negative pressure particulate respirator with a filter as an integral part of the facepiece or with the entire facepiece composed of the filtering medium, not equipped with elastomeric sealing surfaces and adjustable straps.
Toileting means getting to and from the toilet, getting on and off the toilet, and performing associated personal hygiene.