CHAPTER I: OVERALL REQUIREMENTS

CHAPTER I: OVERALL REQUIREMENTS. SCOPE This part applies to the gaseous ad particulate pollutat from all motor vehicles equipped with compressio igitio egies ad to the gaseous pollutat from all motor vehicles equipped with positive igitio egies fuelled with atural gas or LPG, with the exceptio of those vehicles of category M, with a techically permissible maximum lade mass less tha or equal to 3,500 kg ad the vehicles of category N, N 2 ad M 2 for which type-approval has bee grated uder Part XI of MoRTH / CMVR / TAP 5-6 uder CMVR Rules,5-4C. 2. DEFINITIONS AND ABBREVIATIONS For the purposes of this Documet: 2. "Test Cycle" meas a sequece of test poits each with a defied speed ad torque to be followed by the egie uder steady state (ESC test) or trasiet operatig coditios (ETC, ELR test); 2.2. "Approval of a egie" meas the approval of a egie type with regard to the level of the emissio of gaseous ad particulate pollutats; 2.3. "Diesel egie" meas a egie which works o the compressio-igitio priciple; "Gas egie" meas a egie which is fuelled with atural gas (NG) or liquid petroleum gas (LPG); 2.4. "Egie type" meas a category of egies which do ot differ i such essetial respects as egie characteristics as defied i Chapter 2 to this Documet; 2.5. "Gaseous pollutats" meas carbo mooxide, hydrocarbos (assumig a ratio of CH.85 for diesel, CH 2.525 for LPG ad CH 2.93 for NG (NMHC)), methae (assumig a ratio of CH4 for NG) ad oxides of itroge, the last-amed beig expressed i itroge dioxide (NO 2 ) equivalet; "Particulate pollutats" meas ay material collected o a specified filter medium after dilutig the exhaust with clea filtered air so that the temperature does ot exceed 325 K (52 C); 2.6. "Smoke" meas particles suspeded i the exhaust stream of a diesel egie which absorb, reflect, or refract light; MoRTH / CMVR / TAP-5/6 (Issue 4) Page 62

2.7. "Net power" meas the power i kw obtaied o the test bech at the ed of the crakshaft, or its equivalet, measured i accordace with the method of measurig power as set out i part IV of MoRTH /CMVR/TAP-5/6; 2.8. "Declared maximum power (P max )" meas the maximum power i kw (et power) as declared by the maufacturer i his applicatio for type-approval; 2.9. "Per cet load" meas the fractio of the maximum available torque at a egie speed; 2.0. "ESC test" meas a test cycle cosistig of 3 steady state modes to be applied i accordace with sectio 6.2 of this Chapter; 2. "ELR test" meas a test cycle cosistig of a sequece of load steps at costat egie speeds to be applied i accordace with sectio 6.2 of this Chapter 2.2. "ETC test" meas a test cycle cosistig of 800 secod-by-secod trasiet modes to be applied i accordace with sectio 6.2 of this Chapter.; 2.3. "Egie operatig speed rage" meas the egie speed rage, most frequetly used durig egie field operatio, which lies betwee the low ad high speeds, as set out i Chapter 3 to this Documet; 2.4. "Low speed ( lo )" meas the lowest egie speed where 50 % of the declared maximum power occurs; 2.5. "High speed ( hi )" meas the highest egie speed where 70 % of the declared maximum power occurs i case of diesel egies ad i case of gas egies if the egie speed wherever highest 70% of the declared max. Power occurs, is ot possible to measure the high speed is take as rated speed as declared by the maufacturer or max. Power speed whichever is higher. 2.6. "Egie speeds A, B ad C" meas the test speeds withi the egie operatig speed rage to be used for the ESC test ad the ELR test, as set out i Chapter 3, Appedix to this Documet; 2.7. "Cotrol area" meas the area betwee the egie speeds A ad C ad betwee 25 to 00 per cet load; 2.8. "Referece speed ( ref )" meas the 00 per cet speed value to be used for deormalisig the relative speed values of the ETC test, as set out i Chapter 3, Appedix 2 to this Documet; 2.9. "Opacimeter" meas a istrumet desiged to measure the opacity of smoke particles by meas of the light extictio priciple; 2.20. "NC gas rage" meas oe of the H or L rage as defied i Europea Stadard EN 437, dated November 993; MoRTH / CMVR / TAP-5/6 (Issue 4) Page 63

2.2. "Self adaptability" meas ay egie device allowig the air/fuel ratio to be kept costat; 2.22. "Recalibratio" meas a fie tuig of a NG egie i order to provide the same performace (power, fuel cosumptio) i a differet rage of atural gas; 2.23 "Wobbe Idex (lower Wl; or upper Wu)" meas the ratio of the correspodig calorific value of a gas per uit volume ad the square root of its relative desity uder the same referece coditios: W= H Gas Χ(ρ air /ρ Gas ) 0.5 2.24 "λ shift factor (Sλ) meas a expressio that describes the required flexibility of the egie maagemet system regardig a chage of the excess-air ratio if the egie is fuelled with a gas compositio differet from pure methae (see Chapter VI for the calculatio of Sλ). 2.25. "Defeat Device" meas ay elemet of egie or vehicle desig which measures or seses vehicle speed, egie speed, gear used, temperature, itake pressure or ay other parameter, with a view to activatig, modulatig delayig or deactivatig the operatio of ay compoet of the emissio cotrol system so that the effectiveess of the emissio cotrol system is reduced uder coditios ecoutered i ormal vehicle use. Such a device will ot be regarded as a defeat device if: - the eed for the device is justified temporarily to protect the egie agaist itermittet operatig coditios that could lead to damage or failure ad o other measures are applicable for the same purpose which do ot reduce the effectiveess of the emissio cotrol system; - the device operates oly whe eeded durig egie startig ad/or warmigup ad o other measures are applicable for the same purpose which do ot reduce the effectiveess of the emissio cotrol system. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 64

Figure Specific defiitios of the test cycles MoRTH / CMVR / TAP-5/6 (Issue 4) Page 65

2.29. Symbols ad abbreviatios 2.29.. Symbols for test parameters Symbol Uit Term A p A T CE E CE M C coc D 0 DF D E E z Fa m2 m2 ppm/vol% m 3 /s g/kwh s- Fc F FH Fs G AIRW G AIRD G DILW G EDFW G EXHW G FUEL G TOTW H H REF H a H d HTCRAT i K k K H,D K H,G K v K w,a K w,d K w,e kg/h kg/h kg/h kg/h Kg/h kg/h kg/h MJ/m 3 g/kg g/kg g/kg mol/mol m - Cross-sectio area of the isokietic samplig probe Cross-sectio area of the exhaust pipe Ethae efficiecy Methae efficiecy Carbo equivalet hydrocarbo Subscript deotig cocetratio Itercept of PDP calibratio fuctio Dilutio factor Bessel fuctio costat Bessel fuctio costat Iterpolated Nox emissio of the cotrol poit Laboratory atmospheric factor Bessel filter cut-off frequecy Fuel specific factor for the calculatio of wet cocetratio from dry cocetratio Stoichiometric factor Itake air mass flow rate o wet basis Itake air mass flow rate o dry basis Dilutio air mass flow rate o wet basis Equivalet diluted exhaust gas mass flow rate o wet basis Exhaust gas mass flow rate o wet basis Fuel mass flow rate Diluted exhaust gas mass flow rate o wet basis Calorific value Referece value of absolute humidity (0.7 g/kg) Absolute humidity of the itake air Absolute humidity of the dilute air Hydroge-to-carbo ratio Subscript deotig a idividual mode Bessel costat Light absorptio coefficiet Humidity correctio factor for Nox, for diesel egies Humidity correctio factor of Nox, for gas egies CFV calibratio fuctio Dry to wet correctio factor for the itake air Dry to wet correctio factor for the dilutio air Dry to wet correctio factor for the diluted exhaust gas MoRTH / CMVR / TAP-5/6 (Issue 4) Page 66

Symbol Uit Term Kw,r L % L a m mass M DIL M d M f M f,p M f,b M SAM M SEC M TOTW M TOTW,i N Np,i Np s p hi lo ref P a P A p B p d ps p P(a) P(b) P() P(m) Ω Q s q r m g/h or g kg mg mg mg mg kg kg kg % mi - s- mi - mi - mi - kpa kpa kpa kpa kpa kpa kw kw kw kw m 3 /s Dry to wet correctio factor for the raw exhaust gas Percet torque related to the maximum torque for the test egie Effective optical path legth Slope of PDP calibratio fuctio Subscript deotig emissios mass flow (rate) Mass of the dilutio air sample passed through the particulates samplig filters Particulate sample mass of the dilutio air collected Particulate sample mass collected Particulate sample mass collected o primary filter Particulate sample mass collected o back-up filter Mass of the diluted exhaust sample passed through the particulate samplig filters Mass of secodary dilutio air Total CVS mass over the cycle o wet basis Istataeous CVS mass o wet basis Opacity Total revolutios of PDP over the cycle Revolutios of PDP durig a time iterval Egie speed PDP speed High egie speed Low egie speed Referece egie speed for ETC test Saturatio vapour pressure of the egie itake air Absolute pressure Total atmospheric pressure Saturatio vapour pressure of the dilutio air Dry atmospheric pressure Pressure depressio at pump ilet Power absorbed by auxiliaries to be fitted for test Power absorbed by auxiliaries to be removed for test Net power o-corrected Power measured o test bed Bessel costat CVS volume flow rate Dilutio ratio Ratio of cross sectioal areas of isokietic probe ad exhaust pipe MoRTH / CMVR / TAP-5/6 (Issue 4) Page 67

Symbol Uit Term R a R d R r ρ S Si Sλ T T a t t e t f t p t % % kg/m 3 kw m- K K s s s s s t i ح V 0 W W act W ref WF WF E X 0 Y i s % M 3 /rev kwh kwh m 3 /rev m - Relative humidity of the itake air Relative humidity of the dilutio air FID respose factor Desity Dyamometer settig Istataeous smoke value λ Shift factor Absolute temperature Absolute temperature of the itake air Measurig time Electrical respose time Filter respose time for Bessel fuctio Physical respose time Time iterval betwee successive smoke data (=/samplig rate) Time iterval for istataeous CFV flow Smoke trasmittace PDP volume flow rate at actual coditios Wobbe idex Actual cycle work of ETC Referece cycle work of ETC Weightig factor Effective weightig factor Calibratio fuctio of PDP volume flow rate s Bessel averaged smoke value 2.29.2 Symbols for the Chemical Compoets CH 4 C 2 H 6 C 3 H 8 CO DOP CO 2 HC NMHC NO x NO NO 2 PT Methae Ethae Propae Carbo mooxide Di-octylphtalate Carbo dioxide Hydrocarbos No-methae hydrocarbos Oxides of itroge Nitric oxide Nitroge dioxide Particulates 2.29.3. Abbreviatios CFV CLD ELR Critical Flow Veturi Chemi-Lumiescet detector Egie Load Respose Test MoRTH / CMVR / TAP-5/6 (Issue 4) Page 68

ESC ETC FID GC HCLD HFID LPG NDIR NG NMC Egie Steady-state Cycle Egie Trasiet Cycle Flame Ioizatio Detector Gas Chromatograph Heated Chemi-Lumiescet Detector Heated Flame-Ioizatio Detector Liquified Petroleum Gas No-Dispersive Ifrared Aalyser Natural Gas No-Methae Cutter 3. APPLICATION FOR TYPE-APPROVAL 3.. As per AIS 007 Revisio-02 to be submitted to Test Agecies. 4. TYPE-APPROVAL 4.. Gratig of a uiversal fuel type-approval A uiversal fuel type-approval is grated subject to the followig requiremets: 4.. I the case of diesel fuel, the paret egie meets the requiremets of part or the referece fuel specified i Aexure IV-F of CMVR rule. 4..2. I the case of atural gas, the paret egie demostrates its capability to adapt to ay fuel compositio that may occur across the market. I the case of atural gas there are geerally two types of fuel, high calorific fuel (H-gas) ad low calorific fuel (L-gas), but with a sigificat spread withi both rages; they differ sigificatly i their eergy cotet expressed by the Wobbe Idex ad i their shift factor (Sλ). The compositio of the referece fuels reflects the variatios of those parameters The paret egie shall meet the requiremets of the part of the referece fuels G20 ad G25 as specified i Aexure IV-I of CMVR rule, without ay readjustmet to the fuellig betwee the two tests. 4..3. I the case of a egie fuelled with atural gas which is self-adaptive for the rage of H-gases o the oe had ad the rage of L-gases o the other had, ad which switches betwee the H-rage ad the L-rage by meas of a switch, the paret egie shall be tested o the two relevat referece fuels as specified i Aex IV for each rage, at each positio of the switch. The fuels are G20 (fuel ) ad G23 (fuel 2) for the H-rage of gases, G23 (fuel ) ad G25 (fuel 2) for the L-rage of gases. The paret egie shall meet the requiremets of this Directive at both positios of the switch without ay readjustmet to the fuellig betwee the two tests at each positio of the switch. However, oe adaptatio ru over oe ESC cycle without measuremet is permitted after the chage of the fuel. 4..3..O the maufacturer's request the egie may be tested o a third fuel (fuel 3) if the shift factor (Sλ) lies betwee those of the fuels G20 ad G25, e.g. whe fuel MoRTH / CMVR / TAP-5/6 (Issue 4) Page 69

3 is a market fuel. The results of this test may be used as a basis for the evaluatio of the coformity of the productio. 4..3.2. The ratio of emissio results "r" shall be determied for each pollutat as follows: r = or, ra = ad, rb = emissio result o referece fuel 2 emissio result o referece fuel emissio result o referece fuel 2 emissio result o referece fuel 3 emissio result o referece fuel emissio result o referece fuel 3 4..4. I the case of LPG the paret egie should demostrate its capability to adapt to ay fuel compositio that may occur across the market. I the case of LPG there are variatios i C3/C4 compositio. These variatios are reflected i the referece fuels. The paret egie should meet the emissio requiremets o the referece fuels A ad B as specified i Aex IV-H of CMVR rules without ay readjustmet to the fuellig betwee the two tests. However, oe adaptatio ru over oe ESC cycle without measuremet is permitted after the chage of the fuel. 4..4.. The ratio of emissio results "r" shall be determied for each pollutat as follows: r = emissio result o referece fuel 2 emissio result o referece fuel 4.2. Gratig of a fuel rage restricted type-approval At the preset state of techology it is ot yet possible to make leabur atural gas egies self-adaptive. Yet these egies offer a advatage i efficiecy ad CO 2 emissio. If a user has the guaratee of a supply of fuel of uiform compositio, he may opt for a lea bur egie. Such a egie could be give a fuel restricted approval. I the iterest of iteratioal harmoisatio it is regarded desirable that a specime of such a egie is grated iteratioal approval. Fuel restricted variats would the eed to be idetical except for the cotets of the database of the ECU of the fuellig system, ad such parts of the fuellig system (such as ijector ozzles) that eed to be adapted to the differet fuel flow. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 620

Fuel rage restricted type-approval is grated subject to the followig requiremets: 4.2.. Exhaust emissios approval of a egie ruig o atural gas ad laid out for operatio o either the rage of H-gases or o the rage of L-gases The paret egie shall be tested o the two relevat referece fuels as specified i Aex IV-I of CMVR rules for the relevat rage. The fuels are G20 (fuel ) ad G23 (fuel 2) for the H-rage of gases, G23 (fuel ) ad G25 (fuel 2) for the L-rage of gases. The paret egie shall meet the emissio requiremets without ay readjustmet to the fuellig betwee the two tests. However, oe adaptatio ru over oe ESC cycle without measuremet is permitted after the chage of the fuel. 4.2... O the maufacturer's request it may be tested o a third fuel (fuel 3) of the (Sλ) shift factor lies betwee those of the fuels G20 ad G23, or G23 ad G25 respectively, e.g. whe fuel 3 is a market fuel. The results of this test may be used as a basis for the evaluatio of the coformity of the productio. 4.2..2. The ratio of emissio results "r" shall be determied for each pollutat as follows: r = or, ra = ad, rb = emissio result o referece fuel 2 emissio result o referece fuel emissio result o referece fuel 2 emissio result o referece fuel 3 emissio result o referece fuel emissio result o referece fuel 3 4.2..3. Upo delivery to the customer the egie shall bear a label (see paragraph 5..5) statig for which rage of gases the egie is approved. 4.2.2. Exhaust emissios approval of a egie ruig o atural gas or LPG ad laid out for operatio o oe specific fuel compositio 4.2.2.. The paret egie shall meet the emissio requiremets o the referece fuels G20 ad G25 i the case of atural gas, or the referece fuels A ad B i the case of LPG, as specified i Aex IV-H of CMVR rules. Betwee the tests fie-tuig of the fuellig system is allowed. This fie-tuig will cosist of a recalibratio of the fuellig database, without ay alteratio to either the basic cotrol strategy or the basic structure of the database. If ecessary the exchage of parts that are directly related to the amout of fuel flow (such as MoRTH / CMVR / TAP-5/6 (Issue 4) Page 62

ijector ozzles) is allowed. 4.2.2.2. If the maufacturer so desires the egie may be tested o the referece fuels G20 ad G23, or G23 ad G25, i which case the type approval is oly valid for the H-rage or the L-rage of gases respectively. 4.2.2.3. Upo delivery to the customer the egie shall bear a label (see paragraph 5..5) statig for which fuel compositio the egie has bee calibrated. 4.2.3 Util availability of referece LPG (fuel A & Fuel B), CNG (G20, G23, G25) as per otificatio, CNG/LPG egies will be tested as per commercially available CNG or LPG fuels as per guidelies give by GOI. 5. ENGINE MARKINGS 5.. The egie approved as a techical uit must bear: 5... The trademark or trade ame of the maufacturer of the egie; 5..2. The maufacturer's commercial descriptio; 5..3. Declared maximum power 5..4. I case of a NG egie oe of the followig markigs to be placed after the type approval umber: - H i case of the egie beig approved ad calibrated for the H-rage of gases; - L i case of the egie beig approved ad calibrated for the L-rage of gases; - HL i case of the egie beig approved ad calibrated for both the H- rage ad L-rage of gases; - Ht i case of the egie beig approved ad calibrated for a specific gas compositio i the H-rage of gases ad trasformable to aother specific gas i the H-rage of gases by fie tuig of the egie fuellig; - Lt i case of the egie beig approved ad calibrated for a specific gas compositio i the L-rage of gases ad trasformable to aother specific gas i the L-rage of gases after fie tuig of the egie fuellig; - HLt i the case of the egie beig approved ad calibrated for a specific gas compositio i either the H-rage or the L-rage of gases ad trasformable to aother specific gas i either the H-rage or the L-rage of gases by fie tuig of the egie fuellig. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 622

5..5. Labels 5..5.. Cotet I the case of NG ad LPG fuelled egies with a fuel rage restricted type approval, the followig labels are applicable: The followig iformatio must be give: I the case of paragraph 4.2..3, the label shall state "ONLY FOR USE WITH NATURAL GAS RANGE H". If applicable, "H" is replaced by "L". I the case of paragraph 4.2.2.3, the label shall state "ONLY FOR USE WITH NATURAL GAS SPECIFICATION..." or "ONLY FOR USE WITH LIQUEFIED PETROLEUM GAS SPECIFICATION...", as applicable. All the iformatio i the appropriate table(s) i Chapter IV of CMVR rules shall be give with the idividual costituets ad limits specified by the egie maufacturer. The letters ad figures must be at least 4 mm i height. Note: If lack of space prevets such labellig, a simplified code may be used. I this evet, explaatory otes cotaiig all the above iformatio must be easily accessible to ay perso fillig the fuel tak or performig maiteace or repair o the egie ad its accessories, as well as to the authorities cocered. The site ad cotet of these explaatory otes will be determied by agreemet betwee the maufacturer ad the approval authority. 5..5.2. Properties 5..5.3. Placig Labels must be durable for the useful life of the egie. Labels must be clearly legible ad their letters ad figures must be idelible. Additioally, labels must be attached i such a maer that their fixig is durable for the useful life of the egie, ad the labels caot be removed without destroyig or defacig them. Labels must be secured to a egie part ecessary for ormal egie operatio ad ot ormally requirig replacemet durig egie life. Additioally, these labels must be located so as to be readily visible to the average perso after the egie has bee completed with all the auxiliaries ecessary for egie operatio. 5.2. I case of a applicatio for type-approval for a vehicle type i respect of its egie, the markig specified i sectio 5..5 shall also be placed close to fuel fillig aperture. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 623

5.3. I case of a applicatio for type-approval for a vehicle type with a approved egie, the markig specified i sectio 5..5 shall also be placed close to the fuel fillig aperture. 6. SPECIFICATIONS AND TESTS 6.. Geeral The compoets liable to affect the emissio of gaseous ad particulate pollutats from diesel egies ad the emissio of gaseous pollutats from gas egies shall be so desiged, costructed ad assembled as to eable the egie, i ormal use, to comply with the provisios of this Documet. 6... The use of a defeat device ad/or irratioal emissios cotrol strategy is forbidde. If the type-approval authority suspects that a vehicle type utilises defeat device(s) ad/or ay irratioal emissio cotrol strategy uder certai operatig coditios, upo request the maufacturer has to provide iformatio o the operatio ad effect o emissios of the use of such devices ad/or cotrol strategy. Such iformatio shall iclude a descriptio of all emissio cotrol compoets, fuel cotrol system logic icludig timig strategies ad switch poits durig all modes of operatio. These iformatios should remai strictly cofidetial ad ot be attached to the documetatio required i Chapter I, sectio 3. 6.2. Specificatios Cocerig the Emissio of Gaseous ad Particulate Pollutats ad Smoke For type approval to B.S. III, the emissio shall be determied o the ESC ad ELR tests with covetioal diesel egies icludig those fitted with electroic fuel ijectio equipmet, exhaust gas re-circulatio (EGR), ad/or oxidatio catalysts. Diesel egies fitted with advaced exhaust after treatmet systems icludig the NOx catalysts ad/or particulate traps, shall additioally be tested o the ETC test. For gas egies, the gaseous emissio shall be determied oly o ESC test. The ESC & ELR test procedures are described i Chapter III, Appedix. The ETC test procedure i Chapter III, Appedix 2 & 3. The emissios of gaseous pollutats ad particulate pollutats, if applicable, ad smoke, if applicable, by the egie submitted for testig shall be measured by the methods described i Chapter III, Appedix 4. Chapter V describes the recommeded aalytical systems for the gaseous pollutats, the recommeded particulate samplig systems, ad the recommeded smoke measuremet system. Other systems or aalysers may be approved by the Techical Service if it is foud that they yield equivalet results o the respective test cycle. For particulate emissios oly the full flow dilutio system is recogised as the referece system. "Results" refer to the specific cycle emissios value. The correlatio testig shall be performed at the same laboratory, test cell, ad o MoRTH / CMVR / TAP-5/6 (Issue 4) Page 624

the same egie, ad is preferred to be ru cocurretly. The equivalecy criterio is defied as a ± 5 % agreemet of the sample pair averages. For itroductio of a ew system ito the Documet the determiatio of equivalecy shall be based upo the calculatio of repeatability ad reproducibility, as described i ISO 5725. 6.2.. Limit Values Table The specific mass of the carbo mooxide, of the total hydrocarbos, of the oxides of itroge ad of the particulates, as determied o the ESC test, ad of the smoke opacity, as determied o the ELR test, shall ot exceed the amouts show i Notificatio 5 4D. Limit values - ESC ad ELR tests (TA = COP) Year Mass of carbo mooxide (CO) g/kwh Mass of hydrocarbos (HC) g/kwh Mass of oxides of Nitroge (NO x ) g/kwh Mass of Particulate (PT) (2) g/kwh Smoke m -(2).4.2005 2, 0,66 5,0 0,0 0,3 () 0,8 () (2) For egies havig swept volume of less tha 0,75 dm 3 per cylider ad a rated power speed of more tha 3000 mi - Applicable to Diesel Egies oly. For diesel egies that are additioally tested o the ETC test, the specific masses of the carbo mooxide, of the o-methae hydrocarbos, of the oxides of itroge ad of the particulates shall ot exceed the amouts show i Table 2. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 625

Table 2 Limit values - ETC tests () (TA = COP) Year Mass of carbo mooxide (CO) g/kwh Mass of hydrocarbos (HC) Mass of oxides of Nitroge (NOx) Mass of Particulate (PT) (3) g/kwh g/kwh g/kwh.4.2005 5,45 0,78 5,0 0,6 0,2 (2) () The coditios for verifyig the acceptability of the ETC tests (see Chapter III, Appedix 2, sectio 3.9) (2) For egies havig a swept volume of less tha 0.75 dm 3 per cylider ad a rated power speed of more tha 3000 mi - (3) Applicable to Diesel Egies oly. 6.2.2. Hydrocarbo measuremet for diesel fuelled egies 6.2.2.. A maufacturer may choose to measure the mass of total hydrocarbos (THC) o the ETC test istead of measurig the mass of o-methae hydrocarbos. I this case, the limit for the mass of total hydrocarbos is the same as show i table 2 for the mass of o-methae hydrocarbos. 6.2.3. Specific requiremets for diesel egies 6.2.3.. The specific mass of the oxides of itroge measured at the radom check poits withi the cotrol area of the ESC test must ot exceed by more tha 0 per cet the values iterpolated from the adjacet test modes (referece Chapter III, Appedix sectios 4.6.2 ad 4.6.3). 6.2.3.2. The smoke value o the radom test speed of the ELR must ot exceed the highest smoke value of the two adjacet test speeds by more tha 20 per cet, or by more tha 5 per cet of the limit value, whichever is greater. 7. INSTALLATION ON THE VEHICLE 7.. The egie istallatio o the vehicle shall comply with the followig characteristics i respect to the type-approval of the egie: 7... Itake depressio shall ot exceed that specified for the type-approved egie. 7..2. Exhaust back pressure shall ot exceed that specified for the type-approved egie. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 626

7..3. Power absorbed by the auxiliaries eeded for operatig the egie shall ot exceed that specified for the type-approved egie. 7..4 Exhaust system value shall ot differ by more tha 40% of that specified for the type-approved egie 9. PRODUCTION CONFORMITY 9.. Measures to esure productio coformity must be take i accordace with the provisios as per Part VI of MoRTH /CMVR/TAP5/6. 9... If emissios of pollutats are to be measured ad a egie type-approval has had oe or several extesios, the tests will be carried out o the egie(s) described i the iformatio package relatig to the relevat extesio. 9... Coformity of the egie subjected to a pollutat test: After submissio of the egie to the authorities, the maufacturer shall ot carry out ay adjustmet to the egies selected. 9... Three egies are radomly take i the series. Egies that are subject to testig oly o the ESC ad ELR tests (for Diesel Egies) or oly o the ESC test (for Gaseous Egies) for the checkig of productio coformity. The limit values are give i sectio 6.2. of this Chapter. 9...2. The tests are carried out accordig to Appedix to this Chapter. OR At the maufacturer's request, the tests may be carried out i accordace with Appedix 2 to this Chapter. 9...3. O the basis of a test of the egie by samplig, the productio of a series is regarded as coformig where a pass decisio is reached for all the pollutats ad o coformig where a fail decisio is reached for oe pollutat, i accordace with the test criteria applied i the Appedix. Whe a pass decisio has bee reached for oe pollutat, this decisio may ot be chaged by ay additioal tests made i order to reach a decisio for the other pollutats. If o pass decisio is reached for all the pollutats ad if o fail decisio is reached for oe pollutat, a test is carried out o aother egie (see Figure 2). If o decisio is reached, the maufacturer may at ay time decide to stop testig. I that case a fail decisio is recorded. 9...2. The tests will be carried out o ewly maufactured egies. 9...2.. However, at the request of the maufacturer, the tests may be carried out o diesel or gas egies, which have bee ru-i, up to a maximum of 00 hours. I MoRTH / CMVR / TAP-5/6 (Issue 4) Page 627

this case, the ruig-i procedure will be coducted by the maufacturer who shall udertake ot to make ay adjustmets to those egies. 9...2.2. Whe the maufacturer asks to coduct a ruig-i procedure i accordace with sectio 9...2., it may be carried out o: - all the egies that are tested, or, - the first egie tested, with the determiatio of a evolutio coefficiet as follows: - the pollutat emissios will be measured at zero ad at "x" hours o the first egie tested, - the evolutio coefficiet of the emissios betwee zero ad "x" hours will be calculated for each pollutat: It may be less tha oe. Emissios ' x' hours Emissioszerohours The subsequet test egies will ot be subjected to the ruig-i procedure, but their zero hour emissios will be modified by the evolutio coefficiet. I this case, the values to be take will be: - the values at "x" hours for the first egie, - the values at zero hour multiplied by the evolutio coefficiet for the other egies. 9...2.3. For diesel ad LPG fuelled egies, all these tests may be coducted with commercial fuel. However, at the maufacturer's request, the referece fuels described i Aexure IV(F&H) of CMVR rules respectively may be used. This implies tests, as described i sectio 4 of this Chapter, with at least two of the referece fuels for each gas egie. 9...2.4. For NG fuelled egies, all these tests may be coducted with commercial fuel i the followig way: - for H marked egies with a commercial fuel withi the H rage; - for L marked egies with a commercial fuel withi the L rage; - for HL marked egies with a commercial fuel withi the H or the L rage. However, at the maufacturer's request, the referece fuels described i Aexure IV-I of CMVR rules may be used. This implies tests, as described i sectio 4 of this Chapter, with at least two of the referece fuels for each gas egie. 9...2.5. I the case of dispute caused by the o-compliace of gas fuelled egies whe usig a commercial fuel, the tests shall be performed with a referece fuel o which the paret egie has bee tested, or with the possible additioal fuel 3 MoRTH / CMVR / TAP-5/6 (Issue 4) Page 628

as referred to i paragraphs 4..3. ad 4.2.. o which the paret egie may have bee tested. The, the result has to be coverted by a calculatio applyig the relevat factor(s) "r", "ra" or "rb" as described i paragraphs 4..3.2, 4..4. ad 4.2..2. If r, ra or rb are less tha oe o correctio shall take place. The measured results ad the calculated results must demostrate that the egie meets the limit values with all relevat fuels (fuels, 2 ad, if applicable, fuel 3). 9...2.6. Tests for coformity of productio of a gas fuelled egie laid out for operatio o oe specific fuel compositio shall be performed o the fuel for which the egie has bee calibrated. Figure 2 Schematic of productio coformity testig MoRTH / CMVR / TAP-5/6 (Issue 4) Page 629

Appedix PROCEDURE FOR PRODUCTION CONFORMITY TESTING. This Appedix describes the procedure to be used to verify productio coformity for the emissios of pollutats. 2. With a miimum sample size of three egies the samplig procedure is set so that the probability of a lot passig a test with 40 % of the egies defective is 0,95 (producer's risk = 5 %) while the probability of a lot beig accepted with 65 % of the egies defective is 0,0 (cosumer's risk = 0 %). 3. The values of the pollutats give i sectio 6.2. of Chapter I are cosidered to be log ormally distributed ad should be trasformed by takig their atural logarithms. Let m 0 ad m deote the miimum ad maximum sample size respectively (m 0 = 3 ad m = 32) ad let deote the curret sample umber. 4. If the atural logarithms of the values measured i the series are x,x 2..x 3, ad L is the atural logarithm of the limit value for the pollutat, the, defie d i = x i L ad, d = d i i= V 2 = i= ( d i d ) 2 5. Table 3 shows values of the pass (A) ad fail (B) decisio umbers agaist curret sample umber. The test statistic result is the ratio d / V ad shall be used to determie whether the series has passed or failed as follows: For m 0 < = < = m: d - pass the series if A V d - fail the series if B V d - take aother measuremet if A B V MoRTH / CMVR / TAP-5/6 (Issue 4) Page 630

MoRTH / CMVR / TAP-5/6 (Issue 4) Page 63 6. Remarks The followig recursive formulae are useful for calculatig successive values of the test statistic: d d d ) ( + = ) ( ) ( 2 2 2 + = d d V V ( = 2, 3,..; d = d ; V = 0)

Table 3 Pass ad Fail Decisio Numbers of Appedix Samplig Pla Miimum Sample Size: 3 Cumulative umber of egies tested (sample size) 3 4 5 6 7 8 9 0 2 3 4 5 6 7 8 9 20 2 22 23 24 25 26 27 28 29 30 3 32 Pass decisio umber A -0,8038-0,76339-0,72982-0,69962-0,6729-0,64406-0,6750-0,5935-0,56542-0,53960-0,5379-0,4879-0,469-0,43573-0,40933-0,38266-0,35570-0,32840-0,30072-0,27263-0,2440-0,2509-0,8557-0,5550-0,2483-0,09354-0,0659-0,02892-0,00449 0,03876 Fail decisio umber B 6,64743 7,68627 4,6736 3,25573 2,4543,94369,5905,33295,3566 0,97970 0,85307 0,7480 0,65928 0,5832 0,578 0,45922 0,40788 0,36203 0,32078 0,28343 0,24943 0,283 0,8970 0,6328 0,3880 0,603 0,09480 0,07493 0,05629 0,03876 MoRTH / CMVR / TAP-5/6 (Issue 4) Page 632

Appedix 2 PROCEDURE FOR PRODUCTION CONFORMITY TESTING AT MANUFACTURER'S REQUEST. This Appedix describes the procedure to be used to verify, at the maufacturer's request, productio coformity for the emissios of pollutats. 2. With a miimum sample size of three egies the samplig procedure is set so that the probability of a lot passig a test with 30 % of the egies defective is 0,90 (producer's risk = 0 %) while the probability of a lot beig accepted with 65 % of the egies defective is 0,0 (cosumer's risk = 0 %). 3. The followig procedure is used for each of the pollutats give i Sectio 6.2. of Chapter I (see Figure 2): Let: L = the limit value for the pollutat, x i = the value of the measuremet for the i-th egie of the sample, = the curret sample umber. 4. Calculate for the sample the test statistic quatifyig the umber of ocoformig egies, i.e. xi L: 5. The: - if the test statistic is less tha or equal to the pass decisio umber for the sample size give i Table 4, a pass decisio is reached for the pollutat; - if the test statistic is greater tha or equal to the fail decisio umber for the sample size give i Table 4, a fail decisio is reached for the pollutat; - otherwise, a additioal egie is tested accordig to Sectio 9... of Chapter I ad the calculatio procedure is applied to the sample icreased by oe more uit. I Table 5 the pass ad fail decisio umbers are calculated by meas of the Iteratioal Stadard ISO 8422/99. MoRTH / CMVR / TAP-5/6 (Issue 4) Page 633

Table 4 Pass ad Fail Decisio Numbers of Appedix 2 Samplig Pla Miimum sample Size : 3 Cumulative umber of egies tested (sample size) 3 4 5 6 7 8 9 0 2 3 4 5 6 7 8 9 Pass decisio umber 0 0 2 2 3 3 4 4 5 5 6 6 7 8 Fail decisio umber 3 4 4 5 5 6 6 7 7 8 8 9 9 0 0 9 MoRTH / CMVR / TAP-5/6 (Issue 4) Page 634