Document ID: chunk:federal_register_of_legislation:F2024L00446:front:0:p7
Version: federal_register_of_legislation:F2024L00446
Segment Type: other
Provision Reference: 
Character Range: 19951–24007

GC              Gas chromatograph

GFV             Gas Fuelled Vehicle

HEPA            High efficiency particulate air (filter)

HFID            Heated flame ionization detector

High2           Class 2 WLTC high speed phase

High3a          Class 3a WLTC high speed phase

High3b          Class 3b WLTC high speed phase

ICE             Internal combustion engine

LoD             Limit of detection

LoQ             Limit of quantification

Low1            Class 1 WLTC low speed phase

Low2            Class 2 WLTC low speed phase

Low3            Class 3 WLTC low speed phase

Medium1         Class 1 WLTC medium speed phase

Medium2         Class 2 WLTC medium speed phase

Medium3a        Class 3a WLTC medium speed phase

Medium3b        Class 3b WLTC medium speed phase

LC              Liquid chromatography

LPG             Liquefied petroleum gas

NDIR            Non-dispersive infrared (analyser)

NDUV            Non-dispersive ultraviolet

NG/biomethane   Natural gas/biomethane

NMC             Non-methane cutter

NOVC-FCHV       Not off-vehicle charging fuel cell hybrid vehicle

NOVC            Not off-vehicle charging

NOVC-HEV        Not off-vehicle charging hybrid electric vehicle

OBD             On-board Diagnostics

OBFCM           On-board fuel and/or energy consumption monitoring

OVC-FCHV        Off-vehicle charging fuel cell hybrid vehicle

OVC-HEV         Off-vehicle charging hybrid electric vehicle

Pa              Particulate mass collected on the background filter

Pe              Particulate mass collected on the sample filter

PAO             Poly-alpha-olefin

PCF             Particle pre-classifier

PCRF            Particle concentration reduction factor

PDP             Positive displacement pump

PER             Pure electric range

PF              Permeability factor

PM              Particulate matter emissions

PN              Particle number emissions

PNC             Particle number counter

PND1            First particle number dilution device

PND2            Second particle number dilution device

PTS             Particle transfer system

PTT             Particle transfer tube

QCL-IR          Infrared quantum cascade laser

RCDA            Charge-depleting actual range

RCB             REESS charge balance

REESS           Rechargeable electric energy storage system

RRC             Rolling resistance coefficient

SHED            Sealed housing evaporative determination

SSV             Subsonic venturi

UBE             Usable Battery (REESS) Energy

USFM            Ultrasonic flow meter

VH              Vehicle High

VL              Vehicle Low

VPR             Volatile particle remover

WLTC            Worldwide light-duty test cycle

              2.2. Chemical symbols and abbreviations

C1       Carbon 1 equivalent hydrocarbon

CH4      Methane

C2H6     Ethane

C2H5OH   Ethanol

C3H8     Propane

CH3CHO   Acetaldehyde

CO       Carbon monoxide

CO2      Carbon dioxide

DOP      Di-octylphthalate

H2O      Water

HCHO     Formaldehyde

NH3      Ammonia

NMHC     Non-methane hydrocarbons

NOx      Oxides of nitrogen

NO       Nitric oxide

NO2      Nitrogen dioxide

N2O      Nitrous oxide

THC      Total hydrocarbons

              3. Definitions
              For the purposes of this Regulation the following definitions shall apply:

              3.0.1. "Vehicle type with regard to emissions" means a group of vehicles which:
                  (a) Do not differ with respect to the criteria constituting an "interpolation family" as defined in paragraph 6.3.2.;

                  (b) Fall in a single "CO2 interpolation range" within the meaning of paragraph 2.3.2. of Annex B6;

                  (c) Do not differ with respect to any characteristics that have a non-negligible influence on tailpipe emissions, such as, but not limited to, the following:

                     (i) Types and sequence of pollution control devices (e.g. three-way catalyst, oxidation catalyst, lean NOx trap, SCR, lean NOx catalyst, particulate trap or combinations thereof