Particle number definition

Particle number or ‘PN’ means the number of solid particles emitted by an engine with a diameter greater than 23 nm;
Particle number or ‘PN’ means the total number of solid particles emitted from the tailpipe or the brakes;
Particle number. (PN) means the total number of solid particles emitted from the vehicle exhaust and as specified in this gtr.

Examples of Particle number in a sentence

  • Annex 4 - Appendix 8 Particle number emissions measurement equipment A.8.1. Specification A.8.1.1. System overview A.8.1.1.1. The particle sampling system shall consist of a probe or sampling point extracting a sample from a homogenously mixed flow in the tailpipe or in a dilution system as described in Appendix 2 to this annex, paragraph A.2.2.1. and A.2.2.2. or A.2.2.3. and A.2.2.4., a volatile particle remover (VPR) upstream of a particle number counter (PNC) and suitable transfer tubing.

  • Photochemical Chamber Testing Conditions Test NA = not applicable Particle number concentrations in the photochemical tests ranged up to approximately 8 x 105 per cubic centimeter (cm3) almost entirely in the 0.3 to 0.5 µm size range, and those particles were almost completely removed by the filter on the inlet manifold from which the 3.02 P-A units and the FEM drew their sample air.

  • Wiedensohler, Particle number size distribution in the urban atmosphere of Beijing, China, Atmos.

  • Figure 2: Particle number concentration of PP based nanocomposite samples during eight holes drilled within 3 minutes followed by 1 minute of no drillingThe PP/WO sample demonstrated the largest average peaks across the eight holes drilled when compared to the PP, PP/talc and PP/MMT.

  • The City may contract with the District and/or contractors other than the District for any work that it does not assign to District Streetcar Department employees, provided however, that the District shall undertake to reach agreement with the City to provide Streetcar maintenance-of-way (MOW) services, as specified in subparagraph (a).


More Definitions of Particle number

Particle number. (PN) means as the total number of solid particles emitted from the vehicle exhaust as defined by the measurement procedure provided for by this Regulation for assessing the respective Euro 6 emission limit defined in Table 2 of Annex I to Regulation (EC) No 715/2007.
Particle number or “PN” means the number of solid particles emitted from the engine
Particle number means the number of particles which is defined in the relevant series of amendments to Regulation No. 49.
Particle number means the number of particles which is defined in the relevant series of amendments to UN Regulations Nos. 49 and 96." Paragraph 5.4., amend to read:
Particle number. (PN) means the total number of solid particles emitted from the vehicle exhaust quantified according to the sampling and measurement approaches as specified in this gtr; [SMD80]
Particle number. (PN) means as the total number...
Particle number or “ PN” means the number of solid particles emitted from the engine with a diameter greater than 23 nm;