# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 5.1: Calibration intervals


Table A5/3
Instrument calibration intervals
Instrument checks
Interval
Criterion
Gas analyser linearization (calibration)
Every 6 months
± 2 per cent of reading
Mid span
Every 6 months
± 2 per cent
CO NDIR:CO2/H2O interference
Monthly
– 1 to 3 ppm
NOx converter check
Monthly
> 95 per cent
CH4 cutter check
Yearly
98 per cent of ethane
FID CH4 response
Yearly
See paragraph 5.4.3. of this Sub-Annex
FID air/fuel flow
At major maintenance
According to instrument manufacturer.
Laser infrared spectrometers (modulated high resolution narrow band infrared analysers): interference check
Yearly or at major maintenance
According to instrument manufacturer.
QCL
Yearly or at major maintenance
According to instrument manufacturer.
GC methods
See paragraph 7.2. of this Sub-Annex
See paragraph 7.2. of this Sub-Annex
LC methods
Yearly or at major maintenance
According to instrument manufacturer.
Photoacoustics
Yearly or at major maintenance
According to instrument manufacturer.
Microgram balance linearity
Yearly or at major maintenance
See paragraph 4.2.2.2. of this Sub-Annex
PNC (particle number counter)
See paragraph 5.7.1.1. of this Sub-Annex
See paragraph 5.7.1.3. of this Sub-Annex
VPR (volatile particle remover)
See paragraph 5.7.2.1. of this Sub-Annex
See paragraph 5.7.2. of this Sub-Annex
Table A5/4
Constant volume sampler (CVS) calibration intervals
CVS
Interval
Criterion
CVS flow
After overhaul
± 2 per cent
Dilution flow
Yearly
± 2 per cent
Temperature sensor
Yearly
± 1 °C
Pressure sensor
Yearly
± 0,4 kPa
Injection check
Weekly
± 2 per cent
Table A5/5
Environmental data calibration intervals
Climate
Interval
Criterion
Temperature
Yearly
± 1 °C
Moisture dew
Yearly
± 5 per cent RH
Ambient pressure
Yearly
± 0,4 kPa
Cooling fan
After overhaul
According to paragraph 1.1.1. of this Sub-Annex

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/5/division/division/5./division/5.1. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/5/division/division-5./division-5.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.