ARCHIVES HISTORIQUES
DELACOMMISSION
COLLECTION RELIEE DES
DOCUMENTS "COM"
COM (79)781
V ol.1979/0257

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COMMISSION OF THE EUROPEAN COMMUNITIES
TWO PROPOSALS FOR COUNCIL DIRECTIVES
ONTHE APPROXIMATION OFTHE LAWS OFTHE MEMBER STATES
RELATING TOTHE FUEL CONSUMPTION OFMOTOR VEHICLES AND TO
THE ENGINE POWER OFMOTOR VEHICLES RESPECTIVELY
(presented bytheCommission totheCouncil )COM(79)781 final
Brussels ,10th January 1980
COM (79)781 final

EXPLANATORY MEMORANDUM
I.GENERAL
On15June 1979 *under theCommunity 'sprogramme forenergy saving ,the
Commission forwarded tothe Council aproposal for aResolution onnew
lines ofaction bytheEuropean Community inthefield ofenergy saving (l).
Initem 3.1ofthis proposal itisagreed that "voluntary indicative targets
forthe fuel consumption ofmotor cars and light vans should beestablished
atCommunity level incooperation with theautomobile industry "and that the
Commission should aocelerate "thecompletion oftheremaining technical work
todevelop astandard method ofmeasuring fuel consumption byvehicles ".
Theimportance ofaCommunity method ofmeasuring the fuel consumption of
avehicle isbeyond question notonly asregards themonitoring ofthe
abovementioned targets forthereduction ofconsumption butalso asregards ,,
thesupply ofobjective information tocustomers andusers .
Negotiations sireunder waywith themotor-vehicle manufacturers with aview
toreaching agreement onvoluntary measures bythelatter torestrict fuel
consumption .Asregards themethod ofmeasuring this consumption ,theCom­
mission isinaposition toputforward aproposal foraDireotive ,sinoe
*
thebasis ofthis essentially technical text isalready available .
* •»
Atthesame time ,theCommission islikewise inaposition toputforward
aproposal foraDirective onamethod ofmeasuring theengine power of
motor vehicles .These twoproposed Directives arepart oftheprocedure for
EECtype-approval ofmotor vehicles andtheir trailers which was thesub­
ject ofCouncil Directive 70/156/EECof6February 1970 (2)andinrespect
ofwhich aproposed amendment was forwarded totheCouncil bytheCommissign
–inJanuary 1977 (3)»Inadopting these twoproposed Directives ,theCouncil
must therefore take prior orsimultaneous measures toadopt thecorresponding
(1)OJNoC208 ,18.8.1979 ,p.4
(2)OJNoL42,23.2.1970 ,p.1
(3)COM(76)721 Final of6January 1977••/••

-2-
amendments toDirective 70/I56/ESC .Thesections inquestion are3.2.5 and
3.2.10 ,Annex I(minor amendments being required inrespect ofNotes (s)
and (t)ofthis same annex )and3*2.1 and3.2.3 ,Annex II.Lastly ,itshould
beemphasized that ,informulating these twoproposed Directives ,theCommis­
sion took asitsbasis work already carried out inthis area bytheGeneva -
based Economic Commission for Europe –afact which ,asfar astrade is
concerned ,must beanadded advantage ,since avery large number ofcountries
arerepresented inthis organization *
II.COMMENTS ,ONTHETWOPROPOSED DIRECTIVES
Asregards themeasurement offuel consumption ,thefield ofapplication
islimited tomotor vehicles ofCatsgof-y (l)»Asregards themeasurement
ofengine power ?thefield ofapplication covers notorvehicles ofCategories
M(l)andN(l)(Artioles 1anditems 2oftheannexes ).
Article 2ineach case incorporates into theESCtype-approval procedure the
provisions relating tomethods ofmeasuring fuel consumption and engine power
respectively .Inthe case ofcertain Member States which donot atpresent
have anational type-approval procedure ithas 'bsennecessary tointroduce
provisions under which the useinthese countries ofvehicles complying with
therequirements ofthe two Directives canbeguaranteed .
Article 3ineach case lays down theprocedure fortheadaptation totech­
nical progress oftherequirements oftheannexes ,This procedure isset out
inArticle 13ofDirective -1Q/l^6/ESContheEECtype-approval cfmotor vehic­
les and their trailers .
Article 4ineach case lays down thedeadline for theentry into force of
theprovisions necessary inorder tocomply with the two Directives .
Lastly ,the Commission must beinformed within areasonable period ofany
draft provisions drawn upbjftheMember States inthe fields covered bythe
twoDirectives ,soastoenable ittoput forward any comments itmaywish
tomake onthese draft provisions (Articles 4«paragraphs 2).
0»!v•
(l)Aadefined inAnnex IofDirective "JOfi^S /EZG.

III.CONSULTATION OPTHE EUROPEAN PARLIAMENT AND THE ECONOMIC AND SOCIAL
,COMMITTEE -
Theopinion ofthese twobodies isrequired inaccordance with the second
paragraph ofArticle 100ofthe EECTreaty .

PROPOSAL FOR ACOUNCIL DIRECTIVE
ONTHEAPPROXIMATION OPTHE LAWS OPTEEMEMBER STATES
RELATIMG TOTHEFUEL CONSUMPTION OFMOTOR VEHICLES

THECOUNCIL OFTHEEUROPEAN COMMUNITIES ,
Having regard totheTreaty establishing theEuropean Economic Community ,
andinparticular Article 100thereof ,
Having regard totheproposal from theCommission ,
Having regard totheopinion oftheEuropean Parliament ,
Having regard totheopinion oftheEconomio andSocial Committee ,
Whereas thetechnical requirements which motor vehicles must satisfy pur­
suant tonational laws relate ,inter alia ,tothemethod ofmeasuring fuel
consumption which themanufacturer must use toindicate the fuel consump­
tion ofavehiole type } - -
\ \ • -
Whereas those requirements differ from oneMember State toanother }whereas
itistherefore necessary forallMember States toadopt thesame require­
ments either inaddition toorinplaoe oftheir existing miles ,inorder ,
inparticular ,toallow theEECtype-approval procedure which was thesub­
ject ofCouncil Directive J0/l^6/EE0of6February 1970 ontheapproximation
ofthelaws oftheMember States relating tothetype-approval ofmotor ve­
hicles andtheir trailers (l),tobeintroduced inrespeot ofeach type of
vehicle } .
/•
Whereas theResolution onnew lines ofaotion bytheEuropean Community m
thefield ofenergy saving (2)calls ontheCommission todevelop astandard
method ofmeasuring fuel consumption byvehioles andtoestablish ,incoopera­
tion with theautomobile industry ,voluntary indicative targets for .there­
duction offuel consumption bymotor cars andlight vans ;
Whereas aCommunity method ofmeasuring fuel consumption istherefore
necessary tomonitor complianoe with thevoluntary indicative targets to
beestablished inthevery near future bytheEuropean manufacturers for
reducing fuel consumption by .their vehicles ,under anagreement with the
Community ,andtoensure that customers andusers aresupplied with objeotive
andprecise information }
••/••
(1)OJKoL42,23.2.1970 ,p.1
(2)Adraft Resolution isunder discussion intheCouncil andispublished in
OJNoC208,18,8.79 ,p.4*

Whereas the provisions ofthis Directive apply only tomotor vehicles of
Category M^,inaooordance with theinternational motor-vehiol8 classifi­
cation scheme set out in'Directi ve70/156/EEC;
whereas amethod ofmeasuring the fuel consumption of
the other categories ofmotor vehicle will bedeveloped assoon ascertain
technical difficulties can beresolved ,
HAS ADOPTED THIS DIRECTIVE :
Article 1
For the purposes ofthis Directive ,"vehicle "means any motor vehicle inten­
dedforuse onthe road ,'with orwithout bodywork ,having atleast four
wheels andamaximum design speed exceeding 25Jon/h,with theexception of
vehicles whioh run onrails and ofagricultural tractors and maohinery .
Article 2
NoMember State may refuse togrant EEC type-approval ornational type-
approval inrespect ofavehicle ,nor refuse orprohibit thesale ,registrat­
ion ,entry into service oruse ofavehicle ,onany grounds relating tothe
fuel consumption ofthedata that appear intheInformation :Document (Annex I
toDirective 70/1^6/EEG)have been determined bythemethod described inthe
Annex hereto .
• ••

Article 3
' »
Theamendments necessary foradapting theprovisions oftheAnnex totake
account oftechnical progress shall beadopted inaooordance with theproce­
dure laid down inArtiole 13ofDirective 70/156/EEC . :
Article 4
1.Member States shall bring into foroe theprovisions necessary inorder
tocomply with this Directive within eighteen months ofitsnotification .
They shall •forthwith inform theCommission thereof .
2.Once this Directive hasbeen notified ,theMember States shall
ensure that theCommission isinformed ,insufficient time foritto
submit itsoomments ,ofanydraft laws ,regulations oradministrative
provisions whioh they propose toadopt inthefield covered bythis
Directive . -
This Directive isArticle 5
addressed tothe Member States .

ANNEX
METHOD OPMEASURING !THE FUEL CONSUMPTION
1. OBJECT
These requirements describe aconventional method ofmeasuring
the fuel consumption ofvehicles ofcategory asdefined in
Annex IofDirective 70/156/EECwhich provides abasis forcom­
paring thediffered 6models ofvehicles .
2. SCOFE
This method applies tovehicles ofcategory equipped with
internal combustion engines .
3. GENERAL SPECIFICATIONS
3.1 . Fuel consumption shall bedetermined bythe following tests :
3.1.1 . Cycle simulating urban driving ,asdescribed inAnnex III of
Directive 70/220/eEC (item 5below );
3.1.2 . .Constant speed test at90km/h(item 6below )}
3.1.3 . Constant speed test at120km/h(item 6below )
3.2 . Theresults ofthetests shall beexpressed inlitres /lOOkm.
3.3 . Distances shall bemeasured towithin anaccuraoy of2permil and
times towithin anaccuracy of2/l0s.
3.4 . Test fuel
The fuel used shall be,asthe case mayrequire ,thereference
fuel specified inAnnex VIofDirective 70/220/EECorthat speoified
inAnnex VofDirective 72/306/EEC .
*JThis test shall notbemade ifthevehicle 'smaximum design speed is
less than 130km/h.

4. TEST CONDITIONS
4.1 . General condition ofthe ,
•* / * '
4.1.1 .Thevehicle shall beclean ,thewindows andairintakes closed ,and
only theequipment necessary for theoperation ofthevehicle during
- the test inuse .Ifthere isamanually controlled device onthe
carburettor inlet forairheating ,itshall beinthe "summer " .
position .Ingeneral ,theauxiliary devices required forthenormal
operation ofthevehicle Bhall beinuse .
4.1.2 .Iftheradiator fanistemperature –controlled 7,itshall beinthe
condition ofnormal operation onthevehicle .Thepassenger com­
partment heating system shall beswitched off ,and soshall the
airconditioning system ,but itsoompressor shall funotion normally .
4.1*3 *Ifasupercharger isfitted itshall beinthenormal operating
condition for the test condition .
4*1*4 *Thevehicle shall have been runinandshall have been driven for
atleast 3,000 kmbefore thetest *
4*2 * Lubricants
Allthelubricants shall bethose recommended bythemanufacturer
ofthevehicle andshall beindicated inthereport ofthe test *
4.3 . Tyres
Thetyres shall beofatype speoified asoriginal equipment bythe
vehicle manufacturer and shall beinflated tothepressure recommen - .
dedforthetest load andspeeds (adapted ifappropriate ,forbench
1 operation atthetest condition ).These pressures aretobeindicated
inthe test report .*
4*4 * Riel Monitoring '
4.4 .1.Fuel shall besupplied totheengine through adevice capable of
measuring thequantity consumed towithin +2per cent jthis device
shall notinterfere with normal supply .If""the system ofmeasurement
isvolumetric ,thetemperature ofthefuel intheburette shall be
measured .
4.4.2 .Avalve system shall beused forrapid change-over from thenormal
fuel supply line tothemeasuring system .Theohange –over shall not
take longer than 0.2 s.
4.5 . Referenoe conditions
Pressure s H■1,000 mbarO '
Temperature * T■293 K(20°C ).o
è•/••
*

-3-
4.5.1 . Airdensity
4.5 .1.1 .Theairdensity whan thevehiole istested ,calculated asdes­
cribed initem 4*5.1.2 .below ,Bhall notdiffer bymore than
7.5 Percent from the airdensity under thereferenoe conditions .
4.5.1.2 .Theairdensity shall becalculated bytheformula !
T; T
dT"dorH T 'Wher®
d™«air dens.i .tyattest conditions ;
d =airdensity atreference conditions ;
H,p»test pressure }
T^,=absolute temperature during thetest .(K)
5. MEASUREMENT OFFUEL CONSUMPTION ONACYCLE SIMULATING URBAN DRIVING
5.1 . The test cycle shall bethat described inannex IIIofdirective
70/220/EEC
5.1.1 . Reference Weight ofthevehicle
Themass ofthevehiole shall bethereference mass ,asdefined
initem 1.2 .ofAnnex IofDirective 7Q/220/EEC
5.2 . Thedynamometer bench will besetwith the equivalent inertia as
stipulated initem 4°2 .ofAnnex IIIofDirective 70/220/EBC
5.3 . Measurement ofconsumption
5.3.1 . Consumption shall bedetermined from thequantity offuel con­
sumed during two consecutive cycles .
5.3.2 . The engine shall bewarmed upfrom acold start bycarrying out
five complete cycles before anymeasurement ismade orcarried
out immediately after the type Iand type IItests defined in
Directive 70/220/ESC .Thetemperature shall bekept within the
normal operating range for that engine ifnecessary byusing the
auxiliary cooling devioe .
5.3.3 . Theidling period between consecutive pairs ofcyoles maybe
extended bynotmore than 60stofacilitate fuel measurement .

-4-
Calculation ofresults
Ifthefuel consumption ismeasured gravimetrioally ,thecon­
sumption shall beexpressed (inlitres /lOOkm)byconverting
themeasurement M(fuel consumed expressed inkilgrammes ).by
means ofthe following formula :
C. 100litres /100kmDx Se ,
where :
Sg-specific mass ofthe fuel inthereference conditions
(kg/dm3)| .
D«distance covered during thetest (km).
5.4*2 . Ifthe fuel consumption ismeasured volumetrically fthecon­
sumption shall beexpressed (inlitres /lOOkm)bythefollowing
formula :
C-v(l+°C(o-**)) 100litres/lOOkm
D
where : ■
V-measured volume inlitres offuel consumed .
oC-coefficient ofvolumetric expansion forthefuel .Forboth
diesel andpetrol fuel this is0.001 perdegree C
Tq»Reference Tetaperature expressed in°C -
T„-Fuel Temperature measured attheburette expressed in°C* , v *
5«5 » Presentation ofresults
5.5.1 . The standard consumption inurban driving shall bethearithmetic
mean ofthree consecutive measurements carried out inaccordance
with theprocedure described above .
5.5*2 . Iftheextreme measurements differ bymore than 5per oent from
themean value ffurther tests shall becarried outinaccordance
with this procedure order toobtain adegree ofaccuracy of
measurement atleast equal to5P^r cent *
••/••
\ . .
♦5.4 .
5«4«1 *

-5-
5.5.4 .
6.
6.1 .
ό«ΧβΧ·Theaocuracy ofmeasurement shall "becalculated "bytheformula J
a S 100Accuracy «kx ■1x per cent
U
where :
Cisderived frorc theformulae inparagraph 5«4 .
(Jisthearithmetic mean ofnvalues ofC
nisthe number ofmeasurements taken
(Ï-Ci)4\2
η-1
kisgiven bythefollowing tables
Number ofmeasurements 4_U6L8 9 10
k 3.2 [2T8
I2.6 2-5 2.4 2.3 2.3
Ifanaccuracy of5per cent has notbeen attained after 10
measurements ,theconsumption shall bedetermined byusing another
vehicle ifthe same type .
MEASUHEMENT DPFUEL CONSOMPTION ATCONSTANT SPEED
These tests maybecarried out either onadynamometer neoh or
onthe road .
Mass ofthe vehicle
The mass ofthe vehicle shall bethe mass inrunning order ,as
defined below ,plus 180kg,orplus half the full load ifthat
ismore than 180kgincluding treasuring equipment and .occupants .
The trim ofthe vehicle shall bethat obtained when the centre
ofgravity ofthe load isinthemiddle ofthestraight line
joining theRpoints ofthefront (side )seats .
Themass ofthevehicle inrunning order isitstotal unladen
mass with all tanks except the fuel tank full ,the fuel tank
being filled to30par cent ofthecapacity specified bythe
manufacturer ,and aset oftools end the spare wheel onboard .
##/«•

6.2 . Gear–"box
Ifthevehicle isfitted with amanual gear change ,thegear ratio
used shall bethehighest recommended bythemanufacturer for
driving ateach ofthe test speeds .
6.3 . Test procédure
6.3.1 . Road test ,
6.3.1.1 .Weather conditions
Ψ
6.3.1.1.1 Therelative humidity shall beless than 95 centj theroad shall
"bedry ;theroad surfaoe may ,however ,bear traoes ofmoisture ,
provided that there isnoappreciable film ofwater inanyarea .
6.3.1.1.2 Theaverage wind speed shall beless than 3m/sandgusta less than
.. 8m/s. - . . ,
6.3.1.2 .Before anymeasurements aretaken ,thevehiole shall travel onthe
chosen circuit ataspeed close tothe test speed ,asufficient
distance fortherunning temperature tobereached ,but inany case
atleast 10km. 7 ~
6.3.1.3 .Test run
Thetest >run shall allow asteady speed tobemaintained .Therun
shall beat"least '2kminlength .Itshall form aclosed circuit
and thesurface shall beingood condition .Astraight road may
beusM ,however provided that therunof2kmismade inboth
directions .Thegradient shall not exceed +2per cent between
any twopoints . ■
6.3.1.4 .Todetermine theconsumption atasteady reference speed (see
graph below ),four tests shall bemade }twoatan.average speed
less than thereference speed andtwoatanaverage speed exceeding
thereference speed . ' .
6.3.1.5 *During each test run ,thespeed shall bekept steady within +2km/h
Theaverage speed foreach test shall notdiffer from thereference
speed bymore than 2km/h./,
6.3.1.6 .Thefuel consumption foreach test runshall becalculated from the
formulae initem 5*4*

b.3*l*7 «Thedifference between "the *fcwolower calculated values must not "be
greater than 5percent oftheaverage value ofthese twoandthe
same condition shall apply forthetwohigher calculated values .
Thevalues ofthefuel consumption attheappropriate referenoe
spaed shall "becalculated "bylinear interpolation asshown inthe
diagram "below .
6.3.I.7.I Ifthecondition initem 6.3.1.7•isnotachieved foreither pair
ofcalculated values then thefour test runs shall repeated ..If
after tenattempts therequired consistency hasnot "been achieved
another vehicle must beselected ajndsubjected toallthetesta
specified inthis procedure a
Example ?Calculation foranaverage speed of90kra/h.
Î !• \»JT
■ ι ^=μ_: =~ΓΧ ·.·
e > i • :/
––––– -–– :–– -y' i
} IIII"I '«" «III ' / ϊ* Κ ιιιι»II
o j | IAverage
•jf | r J | |consumption
CD
§ 'V
ι 1 I^SB 910 $2
Speed inkm/h ,V
Thefour crosses correspond tothecalculated values foreach test
run .Coisthevalue calculated fortheconsumption ,atthe
reference speed .Voover the test distanoe .
6.3.2 . Dynamometer "bench test
6.3*2.1 .I)ynamometer bench setting
Thebench shall besetasdescribed initem 4.1 .ofAnnex IIIof
Direotive 70/220/EECwith thefollowing modifications t
–thebench shall besetfortheappropriate test speed ;
-thecondition ofthevehicle during thetest runs shall beas
specified initems 4*1 *to4«3«»arid ,theweather conditions during
theroad test todetermine thecorrect inlet manifold depression
setting shall beasspecified inits® 6.3.1.2 .

Cooling
Additional aircooling devices shall toeused inorder tokeep the
operating conditions and thetemperature ofthe lubricants and
coolant within therange normally obtained atthe same speed onthe
road .
Before anymeasurements are taken ,thevehicle shall berun onthe
bench ,ataspeed close tothetest speed ,asufficient distance
fortherunning temperatures tobereached ,but inanycase not
less than 10km.
Thetest distance shall notbeless than 2kmmeasured bya
revolution counter onthe bench . - '.
The type oftest bench used shall beindicated inthetest report *
PfESENTATION OPRESULTS
Whatever themethod ofmeasurement used ,theresults shall be
expressed involume under thereferenoe conditions speoified
initem 4«5 «
* /
Thefuel consumption results obtained andalso the ftiel consumption
asafunction ofspeed axeindicated intheowner 'smanual bythe
vehicle manufacturer . .

PROPOSAL FOR ACOUNCIL DIRECTIVE
ON THE APPROXIMATION OF THIS LAI *:SOF TKTO MXKB^R STATES
RELATING TO 151)3 JETF'JDOS JPOWSR OF MO'KFR VESICLES
ν

THE COUNCIL OPTHE EUROPEAN COMMUNITIES ,
Having regard totheTreaty establishing the European Eoonomio Community ,
andinpartioular Article 100thereof ,
Having regard totheproposal from the Commission ,
Having regard totheopinion ofthe European Parliament ,"
Having regard totheopinion ofthe Economio and Social Committee ,
Whereas thetechnical retirements which motor vehioles must satisfy pursu­
ant tonational laws relate ,inter alia ,tothe method ofmeasuring engine
power whioh the manufacturer must use toindioate the engine power -ofa
vehicle type ;
;Whereas those requirements differ from one Member State toanother ;whereas
itistherefore necessary that all Member States adopt the same requirements
either inaddition toorinplace oftheir existing rules ,inorder ,in
particular ,toallow the EEC typ©-approval procedure which was the subject
ofCouncil Directive 70/156/EECof6February 1970 ontheapproximation of '
the laws ofthe Member States relating tothe type-approval ofmotor ,vehicles 1
andtheir trailers (l),tobeintroduced inrespect ofeach type ofvehiole ,
HAS ADOPTED THIS DIRECTIVE :
Article 1 -
For the purposes ofthis Direotive ,vehiole nmeans any motor vehicle inten­
ded foruse onthe road ,with orwithout bodywork ,having atleast four
wheels andamaximum design speed exceeding 25km/h,with theexception of
vehicles which run onrails and ofagricultural traotors and maohinery .
(1)OJNoL42,23.2.1970 ,p.1.

Article 2
NoMember Stats may refuse togrant EEC type–approval ornational type-
approval inrespect ofavehicle ,norrefuse orprohibit thesale ,re­
gistration ,entry into service oruse ofavehicle ,onany grounds relating
toengine power ofthedata that appear intheInformation Document (Annex I
toDirective 70/15&/EEC )have been determined bythemethod desoribed inthe
Annex hereto .-
Article 3
Theamendments necessary foradapting theprovisions oftheAnnexes totake
account oftechnical progress shall beadopted inaccordance with theproce­
dure laid down inArtiola 13of 70/156/EEC .
Article 4
1.Member States shall bring into force theprovisions necessary inorder
tocomply with this Directive within eighteen months ofitsnotification .
They shal.1 forthwith inform the Commission thereof .
2.Once this Directive hasbeen notified ,theMember States shall ensure
that the Commission isinformed ,insufficient time for ittosubmit its
comments ,ofanydraft laws ,regulations oradministrative provisions
which they propose toadopt inthefield covered bythis Directive .
Article 5
This Directive isaddressed tothe Member States .

ANNEX .
•METHOD OPMEASURING ENGINE POWER
1. PURPOSE ; . -
These provisions describe amethod ofconstructing curves ofthe
power ofanengine asafunction ofitsspeed ofrevolution .
2. SCOFE .
2.1*This method concerne internal –combustion engines ,used forthepropulsion
ofcategory NandNvehicles asdefined inAnnex ItoDirective 70/156/EEC,
belonging toeither ofthefollowing typess
2.1.1 .Internal-combustion piston engines (positive-ignition ordiesel ),excluding
free–piston' engines ; "
2.1.2 .Rotary-piston engines .
2.2.These engines maybenaturally aspirated orsuperoharged ,fitted with a
mechanical supercharger oraturbooharger .
3. DEFINITIONS
For thepurposes ofthis Directive ,
3.1 . "Netpower "means thepower obtained onthetest bedattheendofthe
crankshaft oritsequivalent atthecorresponding engine speed with the
auxiliaries listed intable 1.Ifthepower measurement canbecarried
outwith amounted gear-box only ,theefficiency ofthegear-box shall
betaken into account .
3.2 . "Available power "means that part ofthenetpower ,which iscalculated
according totheprovisions ofappendix 4)
3.3. "Standard-production equipment "means equipment provided bythemanu­
facturer foraparticular application . '
4. ACCURACY OFTHE MEASUREMENTS OFFULL LOAD POWER
4.1 ,Torque
\ -
The capacity ofthedynamometer must besuch that ,with theexeption
below ,thefirst quarter ofitsscale isnotused .Themeasuring system
must give anaccuracy within +0.3P*r cent ofthemaximum scale value
.(excluding thefirst quart er)7 Thescale region from onesixth toone
quarter may beused ifthe system accuracy atonesixth scale iswithin
+0.25 per cent ofthemaximum scale value *
•»/••

I>VTir.e speed
Engine speed shall preferably bomeasured with anautomatically -
synchronised revolution counter andchronometer (orcounter-timer ).
Theaccuracy ofmeasurement shall be+0.5percent .
Fuel ccnsunption .
+1percent overall forthoapparatus used .
Bryir.e inlet air temperature
+2.0°C . '
raroreetric pressure
«*•
+2nbar . .
Frersnre inexhaust extraction duc't (a«onote 1totabl*l) •
Fressure inintake-duct :+0.5mbar
Fresrare inexhaust duct :+2mbar
rTET PCWER OFTHE ENGIHE
Torts
Auxiliaries
During thetest ,theauxiliaries specified below shall beinstalled
oritheengine ,a"faraspossible intheBame position aainthe •
intended application *
Auxiliaries tobefitted .•The auxiliaries tobefitted during the ■
test fordetermination ofthenetpower oftheengine arelisted
intable 1below .
Auxiliaries toberemoved .Certain vehicle accessories which are
necessary only fortheoperation ofthevehicle andvhich itaybe
mounted ontheengine shall beremoved forthetest *Thefollowing
non-exhaustive list isgiven asasamples
/
-aJLrcompressor forbrakes ;>
-power steering compressor }
-suspension ccimpressor ; ' ,f
-air-conditioning system } (
-cooling cqiiipraent forhydraulic transmission' and/orgear~bo.r oil# .
Vhere accessories cannot beremoved ,thepower absorbed byxh«sa
intheunloaded condition saaybedetomirwd andeddod tothe
measured engine powor .

TABLE 1-Auxiliaries tobefitted for the test to
.... determine uet .rower ofenrine
•4 ~No. . Auxiliaries Iffitted fornetpower test :
rr Inta2-:e systeni
t-* à
Ir.tal:e manifold )
'Air filter I
jIntake silencer )
Cr?r^ccase emission control system )
!Speed Uniting device ). ; : 1
.* I
I
Yes,standard-production equipment^' *
2
iInduction heating device
•,(ifpossible itshall besetin
thecost favourable position )Yes ,standard-production equipment
3 (Exhaust system '
iExhaust purifier »' )
lKar.ifold '~ ;
}Connecting pipes »'" .)!
)Silencer )
jTail pipe '/ ." )
Exhaust fcral-:e–' )
:Yes,standard-production equipment ^*
4Puel cupply punp*'Yes,standard-production equipment
5 !Carburettor Yes ,standard-production equipment
6
i
I
ι
I
I
)
t
IFuel ir.Jection equipment
(petrol andDiesel )
Prefiltor • I
Filter )
Pucp )
Hijhpressure pipe )
Injector ./ )
Air intake valve ,iffitted-*' J
Governor /Control System ' J
Automatic full-load stopforthe )
control rack depending on )
atnospheric conditions )I
Yes ,ctandard-produc tionequipment
•/
(Seefootnotes atend *oftable )

-H-
TABLE 1(continued )
îîo. Auxiliaries ITfitted fornetpower test \
7Liquid cooling equipment .
Engine bonnet i
Bonnet airoutlet )
Rndintor )
Fan6/ )
Fancowl " ' J
unter pump )
Thermostat 7/ )No
Yoa,standard-production equipment ^
βAir cooling
C-..-1 )
Blcver^ /6/ )
iTerrernture reflating device .-/
Yes ,standard-production equiprnent
Yes ,standard-production equipeentΘ -lectrics.1 equipzent Yes ,standard-production equipment 8/
10 Supercharging equipment
Compressor driven either directly }
orindirectly bytheengine , J
and/orbytheexhauct gases '* J
Int^rcooler 2/ ]
Codant pu^p orfan ]
(en.Tir .»--driven ) ]
Coolant flew control device JYes ,standard-production equipment
111 I
Anti-pollution device Yes,standard production equipment J
\JThecomplete standard exhaust andintake -systems provided forthevehicle
irust beurcd incares where they nayhave anappreciable effect onthepower of
theermine (two-stroke engine /"positive-ignition engine ,etc.)orwhen the
r.anuf icturer sorequests .Inother caso3 acheck shall bemade merely toverify
t".at theback pressure attheoutlet oftheexhaust manifold does notdiffer by
mere tlvin 10r.b?r from themaximum back pressure specified bythemanufacturer and
.that thepressure intheintake csanifold does notdiffer bymore than 1mbar from
thelimit specified bythemanufacturer foraclean airfilter .,These conditions
nay becreated also with thetest bedequipment .
(footnotes continued onnext page )

-5-
When acomplete exhaust system isU3ed inthetest laboratory *theexhaust
extraction system shall not ,with theengine inoperation ,create intheexhaust
extraction duct *atthepoint where itisconnected with theexhaust system ofthe
vehicle apressure differing from theatmospheric pressure bymore than 10mbar ,
unless themanufacturer hasaccepted ahigher back pressure prior totheteat#
7/Ifanexhaust brake isincorpoia tedintheengine ,thethrottle valve
oust befixed inthefully open position .... .
lJThefuel feed pressure maybeadjusted ,ifnecessary ,toreproduce'
pressures existing intheparticular engine application espeoially when a .
"fuel return "system isused .
tjTheairintake valve isthecontrol valve for thtepneumatic governor
oftheinjection purp .Thegovernor orthefuel injection equipment maycontain
other devices which mayaffect theamount ofinjected fuel .
Th<?radiator ,thefan,thefancowl ,thewater pump andthethermostat ,
oholl belocated inthesame relative positions asonthevehicle .Thecooling -
liquid circulation shall beoperated bytheengine water pump only .Cooling of
theliquid maybeproduced either bytheengine radiator orbyanexternal circuit ,
?ir~vidcd that thepressure loss ofthis circuit andthepressure atthepump
iniet recain substantially the6ame asthose oftheengine cooling system .The
radiator shutter ,i_incorporated ,shall beintheopen position .
Vhere thefan ,radiator andcowl system cannot conveniently befitted to
theengine ,theprvcr absorbed bythefanwhen separately mounted initscorrect
position inrelation totheradiator andcowl (ifused ),oust bedetermined at
thespeeds corresponding tothe *engine speeds used formeasurement oftheengine
povej :pither bycalculation from standard characteristics orbypractical tests .
This power cox-rected tothestandard atmospheric conditions defined inpoint 5-2.2
should bededucted from thecorrected power . '•1
6/Where adisconnec table fanorblower isincorporated ,thetest shall
be'made Vith thefan (orblower )connected . ... -
»
•JjThethermostat maybefixed inthefully open position .
&/Minimum power ofthegenerator :thepower' ofthegenerator shall be
lir-ited tothat necessary for \theoperation ofaccessories which areindispensablefortheoperation oftheengine (including electrically driven cooling fan).If
theconnexion ofabattery isnecessary ,afully charged battery ingood order
rust beused . ' .•
The temperature oftheairatthe inlet manifold shall not exceed
that specified bytheengine manufacturer ,ifsuch aspecification isgiven .
Charge aircooler :
Cooling ofthecharge airmaybeperformed either bytheengine charge
aircooler orbyanexternal .cooling system ,provided that thepressure
a™*tempera tur ->oftli?airctthecharge aircooler outlet are
equivale :tothose oftheorigir ilsystem specific bytheengine
manufacturer .

«6«
5.1.1.3 .
5.1.1 .3.1 .
5.1.1.3.2 .
5.1.2 .Diesel ending ^t.irtin ^auxiliaries *Forthoauxiliaries used inthe
starting ofdi«3elengines ,thetwofollowing coses shall be 1
considered : i
21f.ct.ricrt_T__ptarting.Thegenerator isfitted anditsupplies ,where i
necessary ,theauxiliaries indispensable totheoperation oftheengine ,
Start in,tetn^rthan -electrical .Ifthere areanyelectrically -
oper-ited ^cc^ssorier ;indispensable totheoperation oftheengine ,
thegenerator irfitted tosupply these accessories .Otherwise , (
itisrenov«»d .Ii)either case ,theaystenforproducing and
accumulating theenergy necessary forstarting isfitted and
operates intheunloaded condition .
Setting conditions • i
Theoettinj condition# forthetest todetermine netpower axe
indioated intable 2. ,!
TABLE 2-Setting conditions
1Setting ofcarburet torfs ) Set inaccordance with the manufacturer 's
production specifications andused without
further alteration for theparticular
application
'Setting ofinjection
riuap delivery systemSet inaccordance vith the r-anufacturer 's
production specifications andused without
further alteration for theparticular
application
3Ignition ofinjection timing Standard-productioTj .timing curve oprcified
bythemanufacturer and used without
further alteration for th"particular
application
4Setting ofgovernor Set inaccordance with the manuf-icturer' a
production specifications andured without
further alteration for theparticular
application
5-1.3 .
5.1.3.1 .
5.1-3.2 .Net Power Tests
Theretpower test shall consist ofarunatfull throttle for
T>ositive-ignition engines andatfixed full–load inject ion-punp
setting fordiesel engines ,theengine being equipped &aspecified
intable 1.
Performance data sliall beobtained \mder stabilized operating
conditions ,with anadequate fresh-air supply totheengine .
Theermines shall berun–ininaccordance with themanufacturer' s
reccraendat iens .Combustion cliaabera may contain deposits ,but
inlimited quantity ,,Test conditions euch asinlet airtecpcratureshall beselected aanear toreference conditions (seepari trraph 5«2)
aspossible inoi^der tominimise themagnitude ofthecorrection
factor .

~7~
5.1.3»3 » Thetemperature oftheinlet airtotheengine shall bemeasuredvithin 0.15 mupstream from thepoint ofentry totheaircleaner ,
or,ifnoaircleaner isused ,within 0.15 ®oftheairinlet horn .
The thermometer orthermocouple shall beshielded from radiant heat
andplaced directly intheairstrerua .Itshall also beshielded '
from fuel spray-back .Asufficient number oflocations shall be
used togive arepresentative average inlet temperature .
Theair flow shall not bedeteriorated bythe measuring device .
5.1.3.4 . Nodata sliall betaken until torque ,speed andtemperature have
*been maintained substantially constant foratleast 1minute .
5.1.3.5 . Theengine speed during arunformeasurement shall notdeviate
^ from theselected speed during thereadings bymore than 1percent
or+,10rev/min,whichever isgreater .
5.1.3*6. Observed brake load ,fuel consumption andinlet air temperature
.data shall betaken simultaneously and shall bothe average of
tvostabilized values differing byless than 2per cent for
brake load and fuel consumption .
5.1.3.7 .. Atime ofmeasurement ofnotlees than 60seconds shall beused
. –when measuring speed andfuel consumption byhand operation .
5.1.3.8 . Fuel _
5.1.3»S«1 * In "thecase ofdiesel engines ,thefuel used shall beasspecified
..inAnnex VtoDirective 72/306/EECwith theaddition ,ifnecessary ,
ofacommercial liquid orgaseous fuel recommended bythe manu­facturer .Thefuel shall not contain nay smoke –suppressantadditives .
5.1.3 »8*2. Inthe case ofpositive ignition engines ,thefuel used shall be
acommercial fuel ,without any supplementary additive ,chosen by '
thelaboratory inaccordance with themanufacturer 'sspecifications ,
5.1.3.9 . Cooling ofthe engine '; _
• .. "x, 1 , -
5.1.3.9.1- "Lir -sid-cooled engines The temperature ofthe coolant atthe
outlet from theengine shall bekept within ^5°C from theupper
thermostatic controlled temperature specified bythemanufacturer .
Ifnotemperature isspecified bythemanufacturer ,the temperature
shall be80+5<>C. •

Air cooled engines
Forair-cooled engines ,thetemperature -atapoint indicated by •
themanufacturer shall bekept between themaximum value TL^specified bythemanufacturer andT„-20°C .
/
Thefuel temperature attheinlet oftheinjection pump or
carburettor shall bemaintained within the limits established
bythemanufacturer ,
Tho temperature ofthelubricating oilmeasured inthe oilrump
oratthe outlot from tho oilcooler ,iffitted ,shall bo
maintained within thelimits established bythemanufacturer .
The exhaust gastemperature shall bemeasured atapoint intho
exhaust pipers )adjacent totheoutlet flange(s )oftheexhaust
manifold(s ).Itmust notexceed *th«value specified bythe
manufacturer . •
Auxiliary cooling system
Anauxiliary cooling system may beused ifnecessary tomaintain
thetemperatures within thelimits specified inpoints 5.1.3 .9.
to5.1.3.12 .
t
Test crocedure
Tak ■measurenents atasufficient number ofengine speeds to
define thefull load power curve completely between thelowest
and thehighest engine speeds recommended bythemanufacturer .
This range ofspeeds must include thespeed ofrevolution at
which theengine produces itsmaximum power .Theaverage oftwo
stabilized measurements istobedetermined .
l'ea^r^r-ert ofsrcke index
Inthecase ofdiesel engines ,theexhaust gases shall beexamined
during theteet forcompliance with theconditions setoutin
Annex VItoDirective 72/3Q6/fcE0 .
'Correction factors
Définition
The correction factor iathecoefficient Kbywhich theobserved
power must bemultiplied todetermine theengine power under the
atmospheric reference conditions specified inpoint 5.2.2 ,

-9-f
5.2.?. Atrnr.^rhcric conditions ofreference
5.?.2.1. Temperature :25°C .
5.2.2.2 . Total pressure :1,000 mbar ,including water vapour pressure .
/ .....
5.2.3 . Conditions tobeconplied vith inthelaboratory
1*Foratest tobeValid ,thecorrection factor Kmust besuch
that 0.96^ 1.06 .
5.2.4 . Determination ofcorrection factors
5.2.4.1 . Positive-ignition engines (carburettor orinjection )-factor
Thecorrection factor isobtained byapplying formula (1)1 ■-"*
K« (1,000 ) (T) 0.5 ...(1)
where <»>
* »
Tistheabsolute temperature ,inkelvins ,attheairinlet
tothe enginej .
pistheatmospheric pressure ,inmillibars .
5.2.4.2 . Dirnel engines -factor K,
*
5.2.4.2.1 . Naturally-aspirated four-strcke diesel engines ,and twc-stroke
diesel en/rirïes
.*Thecorrection factor iscalculated bymeans offormula (2):
Kd«(1.000 )0.65 CU 0.5 ... (2)
(rV) (298)
5.2.4*2*2 . Pressure-charred four-stroke diesel engines
5.2.4.2*2.1 . Exhaust-driven turbo-superchar /tred en,grines
Nocorrection shall bemade tothepower .However ,when the
density oftheambient air differs bymore than 5per cent from
theairdensity inthereference conditions (25°Cand1,000 mbar )
-thetest conditions shall benoted inthetest report .
5.2.4.2.2.2 . Mechanical ly-superchar /redengines N"
5.2.4.2.2.2.1 .Theratio rshall bedefined byforssula (3):

-10-
r...(3)
y(^2
(Pi)(T2)
vheret
D 18
V 18
piis
218
T113
isthetemperature attheengine inlet manifold ,inKelvins .
5°2.4 -2.2.2.2 .Thecorrection factor formechanically-supercharged engines shall
bethesame asthat fornaturally aspirated engines ,provided ris
equal toorgreater than 50inm*/litre fanditshall beequal to1
ifrisless than 50mmVlitre .
5.3 . TEST REPORT
The test report shall contain theresults andallthecalculations
required tofind thenetpower ,aslisted inappendix 3»together
with thecharacteristics oftheengine listed inappendix 1or
appendix 2tothis annex *
5.4 . MODIFICATION OFEHGIN2 TYPE
Anymodification oftheengine with regard tothecharacteristics
listed inappendix 1orappendix 2tothis annex must bereported
tothecompetent administration .That administration nay then
either ?
5.4.1 . •-consider that the ^edifications made are not liable to
ar.y substantial effect onthepower oftheengine ,cr
' fi
5»4»2 . • request thelaboratory conducting thetests todeterain® tiie
power oftheengine again ,bycarry toffout .each tests it
deems necessary .

Appendix 1
ESSENTIAL CHAIIACTEKICTICS OPTHEENGIKE^
(Diesel engines )
1. . .Description ofengin e
1.1. .• Make ........
• ·» ▼
1.2*t Type
1.3.: Cycle :foux^ -stroke/two -stroke^ 1
* ■ v'
1.4. Bore mm
1.5 * ..Stroke mm
1.6. Number and layout ofcylinders andfiring order
1*7...... . •Cylinder capacity cm
1.8. .Compression ratio^..,,.f,.f.......
1.9. Drawings ofcombustion chamber and piston crovn
1.10 .Minimum cross-sectional area .ofinlet andoutlet ports
1.11., •System ofcooling ....
1.11.1 » "... /.Liquid .
Nature ofliquid Circulating pumps tyes/no^'
Characteristics ormake(s )andtype(s )
•Drive ratio ; ••••••••
Thermostat :settirig :..................................
Ead "ators drawings )orma^eCs )andtype(s)s
Relief valve pressure settings
Fans characteristics ormake(s )andtype (s)s.................
Fan drive systems ................. Drive ratios
Fan covi * ..w.
1JIn^hecase ofnon-conventional engines andsystems ,particulars
equivalent tothose referred tohere shall be "supplied bythemanufacturer .
7jStrike outwhat does notapply . • "
3/Specify thetolerance ..

-g- Appendix 1
1.11.2 . Air
Blower :characteristic crmake(s )andtype(s ):.... Drive ratio :
Airducting (standard production ):.............................
*Température régulation System :yes/no^'Brief description •••••
1.11.3 . Terrpera tares -pcreitted frythenarrafacturer
1.11.3.1 . Liqv_Ld cooling :Ilaz.icn.ua te.perature atoutlet .................
1.11.3.2 . Aircooling : .EcjOrence point
H-rAnun tecperatu reatreference point ........
1.11.3.3 . ."Maxiaua outlet te-;£era.ture oftheinlet intercooler ............ '
1.11 .J.4*. Kaxirnsa exhaust temperature atthepoint indicated in
point 5.I.3.I2 .aïbovQ :
1.11 .3»5« Fuel tespe rature :Esin . max.
1.11.3.6*' ' Labri cant temperature :min .................. max .............
1.12 . Supercharger :with/without 1^'Description oftheaystea.......
1.13 . Ir.-take system
Intake manifold :................... Description ...............
Air filters ............... Make .............. Type •••••••*•••
Intake silencer : Make Type
2. Additional anti-gaoke devices (ifany,andifnotcovered by
.ar.oth 2rhçading )
.Description ariddiagrams
3. ., Airintake andfuel feed . •. '■
3.I. .Description anddiagrams ofairintakes andtheir accessories
(hetingdevice ,intake silencer ,etc*)
.......................
5.2 . Fuel feed
7JStrik® outwhat does notapply

Appendix 2
ESSENTIAL CHARACTERISTICS OFTHEENGINrV
.(Positive-ignition engines )
1".."* 'Description ofengine
1.1V ""Kake
1.2/ Type
1.3. Cycle :foui^ -stroke/two -stroke -'
• ■ ...... • t
1.4* Bore .....•.• •.••••••• min
•••«•? ? - - . .
1.5* Stroke .mm
1.6. Number andlayout ofcylinders andfiring order ••••••.••••••••••••.•
1.7. Cylinder çapacity ...•••••••••••••• cm*
1.8. Compression ratio^/....................................
• • •• **•■.» • t• • t, «
1.9 . Drawing ofcombust ionchamber and piston crown ••••••••••••••••.••..
1.10.' Minimum cross-sectional area ofinlet andoutlet ports ••••••••••••••
1.11 . System ofcooling
1.11.1 ,Liquid .
........Nature .o£liflnIA ...• ........... Ciroulating puap :yes/no^
Characteristics ormake(s )andtype(s )•••••••••••■ '••••••••
Drive ratio
Theraostat ":setting «è '.....••••••
Radiator-' 'Di'&w 'irigCs )ormalce(s )andtype (s)•••••.•• '•'•••'••••••••••••
Relief valve :pressure setting :•.••*•••••••••••••••••••••••••••••••
Fan:' 'Characteristics ormakeCs }and'type (0):••••••••••••••••••.••••
F&ridrive system:' VtiVeratio :••••••••••••*•••
"Fan cowï :
1/Inthecase ofnon-conventional engines andsystems ,particulars
equivalent tothose referred tohere shall besupplied bythemanufacturer .*
2/Strike outwhat does notapply * •
2J Specify thetolerance . -

-g-Appendix 2
1.11.2 . fiT
.Blower :Characteristics ormake (s)and'type(s )•*;•••• "Drive ratio :*....
Airducting (standard production):'
Temperature regulating system :yes/rio^Brief description ............
• . * • •
1.11 .3» Temperatures permitted bvthe manufacturer
1.11.5.1 . Liquid coolin^î Maociai.ua température atangine cutlet
1.11.5.2 . Air cooling : Reference point ••
Maximum temperature atreference point
1.11 .3..?. 9 .Kaxinua outlet temperature oftheinlet "intercocler •.•..••••..•...•••
1.11.3.4.vr*axinu =:exhaust temperature &tthe point indicated in
.point 5.1.3.12 .abova ••••, .
1.11.3.5 » Fuel temperature :min » max.
I.II.3.6 . Lubricant temperature :min -•••••••• '••iM£.
1.12. Supercharger with/without .-^Description ofthesystem •••••«••••.-•••
1.13 « Ir.t--\kø pvstfa • .
Intake manifold :••••••• ^••••• ^•••• 'Description
Airfilter :•»•••.•..••... Hake ••••••«•••••••• Type •••••••••••••*•••
Intake silencer :........ .Make ••••••••••••••• Type •■••»••••••••••••
• .__ ■ • •• •2. Additional anti-pollution devices '(ifany,andifnot covered ,by
another heading )
Description and diagrams -»»•••»«.«•»•«••••••••••••••••••••»••••••••••••
3. 'Air ir.take and fuel feed
5.1.' Description and diagrams of -inle-t .pipes and their accessories
.. (dash-pot ,heating -device ,additional airintakes ,etc.)
•••
•■*· . ♦.•• β·······*·················· 1····················· ·'··················
3»2.... .Fuel ued
. . 7,2/ • .3.2.1 . bycarburettor^)-' «•••.•••«•••••••••••»• Number ••••••*•••••••••••••
• •
Strike out what does not apply

-3-; Appendix 2
3.2.1.1 ,.Make
3.2.1.2 *. ***********-****•**•*•*••••••••••••••••••••••••••••••••••
3.2.1.3 . Adjustnents
3.2.1.3.1 .Jets......... ) (
3.2.1.3.2 .Venturis .(Curve offuel delivery
3.2.1.3.3».Float-chamber level or( a£ainBts-ffflow ,andsettings required to
3.2.1 .5.4»height offloat (keep tothecurve 2/
3.2.1.3.3 *Float needie •••••••). ( •
' ■' ; ■f
3.2.1.4 .Manual /automatic choke^................... .Closure setting ^/...
3.2.1.5 .Feed punp
Pressure ^...... orcharacteristic diagraa ^/.......
3.2^2 . Injection system ,
3.2.2.1 .*Kake (s) «
3.2.^2^2 .Type (s)..
3.2.2.3 .Description (General )
3.2.2.4 .Calibration bars
, . ... 2/3/orcharacteristic diagram ^■*'
4. Valve tir .inporequivalcnt -data
4.1. Maximum lift ofvalves ,angles ofopening andclosing ,ortiming details
'ofalternative distribution systems ,ineolation totopdead centre ...•
4.2. .Reference and/orsetting rangea^'
5. *Irr.iticn "* •• •• •••......
Τ -ΜΜΜΜ . ». '.»··
5.1 . Ignition *sy'ateta type '• ' ' * ... ... ,
5.1.1 .''Maîce' .•» ..
5.1.2 . Type
5.1.3 »Tgni'tTon àdvance curve^
5.1.4 .Ignition timing^....................... •
5.1.5 *Contact-point gap^^anddwell–angle ^.
6. . Exhaust system '■ * ' •" '•
Description anddiagrams • <.«•••••»••••••••••••••••••••••
2yStrike outwhat doe?notapply
3/Specify thetolerance

Appendix 2
7. Lubrication system
7.1.• description ôf "system •• .. ,. .
7.1.1 . 'Position oflubricant reservoir : «...
7.1.2 . Feed system (bypump ,injection into intake ,mixing with fuel,etc.)...
»*· ·· - .Α/ ···'% » «
,-. . ·.. VI7.2. 'Lubricating pump^ ' ' •
7.2.1 .; K&ke : :
7.2.2 . Type : ......
& 7.3 » ..Mixture with fuel –7
.- " • •-• ......7.3.1 . .•Percentage :.- .. *
•' 2/ •• • ■ ..7.4.....Oil cooler :with/without-'
• • • . .7.4.1 . -Draving(s )ox-raske(s )andtype(s )
8. .. .Flectrical equipr:ent
Gonerator /alternator –'Characteristics ormake (b)andtype(s)
9.' Otlvr auxiliaries fitted ontha engine
(Enuneration andbrief description ifnecessary)' *
10. A.Hiticnal information ontest conditions
10.1 . Sharking plugs ,
10.1.1 . Hake
10.1.2.' Type 0 .ht .
10.1.3 ". Spark-gap -setting
10.2 .•' Igr.iticn coi! *. ....
10.2.1 . "ttake .............
10.2.2 . Type'
10.3 . tton condenser
10.3.1 .*•Nake
10.3.2 . Type
10.4 . .Radio interference suppression equipment
10.4.1 . Kake ' «
10.4.2 . Type
2J Strike out what does not apply .

Appendix 3
STATEMENT OF THE RESULTS OF TESTS FOR IEASURING NET ENGINE PCflER
1. Trade nane ormark ofthe engine ....................
2. Type andidentification number ofengine .••*•••••
3*....•.I'i?-nufacturer 's.name ,and address .•..••••••••*•
4.. •Name and address ofmanufacturer *srepresentative ,ifany
5• " Test conditions ..... . . ....
5.1. Pressures measured atmaximum power ..•••••••••••••• „
' ^ -
5.1.1 . .barooetric ..... mbars
5.1.2 . exhaust mbara ......
5.1.3 . Inlet depression .;mbars atengina intake eyBtem
5.2, Tesperaturos measured atfull load ar\d with the engine epeed atm&xirauo
power : .
5.2.1 . cfthe intake ais................. *C
5.2.2 . attheoutlet ofthe .engine intercooler *C
5.2.3 . cfthe cooling fluid : -
'■ *" • , '*/5.2.3.1 .atthe engine cooling fluid outlet • *(H... ■•.• .. ■ #/
5.2.3.2 .atthe reference point inthe case ofair cooling •CM
5.2.4 . oftheoil *C(indicate point ofmeasurement )
5.2.5 . ofthe fuel :
5.2.5.1 *at-thecarburettor /injection pump intake™' *C
5.2.5.2 .inthe fuel-consumption measuring device "C
5.2.6 . oftheexhaust measured atthepoint adjacent totheoutlet flange (s)of
*'theexhaust manifold(s ) • <<4*.«.«•••• ••«... *C .
5.3.'*'Engine speed 'when idling r.p.n .
5.4. Characteristics of -the dynamometer : **•••
5.4.1 . Hake * .........
5.4.2 . Type
5.5.' •characteristics -ofthe opacimeter : •••"• .
5.5.1 .--Malee
5.5.2 ; Type
" ■ : .' v.,.î '..,, ;•:
Strike out what does .not apply .

5.6. Fuel
5.6.1 .. Forposxtive-ignition engines operating onliquid fuel ,
5.6.1.1 . Kake : ^
5.6.1.2 . Specification ....... ,..t.......
5.6.1.3 .'**/.nti«4cnock additive (lead ,etc.)
« • ••• " • *•«• ««
5.6.1.3*1 .'Type :
5.6.1.3.2 .Content n&'litre .........
5.6.1.4 . Octane nunber ^ •
5.6.1.4.1 .RON IÎO. ..
5.6.1.4.2 .MON Ko ........
5.6.1.5. Relative density ; at15®/4#C
5.6.1.6 . Calorific value : kJAff
5.6.2 . Forpositive ignition engines operating ongaseous fuel
5.6.2.1 * Kake :...... r. •
5.6.2.2 . Spécification
5.6.2.3 . Storage pressure .»......................................
5.6.2.4 . -Utilization -pressure :
5.6.3 . For dieselengines operating ongaseous fuels - •
5.6.3.1 . Feed system :gas
5*6.3.2 . Specification ofgas used
5.6.3.3 . Fuel o^'/gasproportion
5.6.4 . Fordie^el engines operating onliquid fuel
5.6.4.1 . Make :
5.6.4.2 . Specification offuel used
5.6.4.3 . Cetane number
5.6.4.4 . Relative density : ati5*/4*C
5.7. lubricant
5.7.1 . Make : ••••••
5.7.2 . Specification ..••••••••
5.7.3 . Si£viscosity :

»
c>. results ofmeasureoonts .
6.1 *Engine performance
IEngine speed i j
(r.p.n.)
{ -•» - * . ; *->1
I ■ ■Ir.•/.
·· ι
•«
• •
Entine test' ' iresults ■. ]
*» •jSpecific fuel "
consumption
fr/V .*h./Kj/tarh-/».»•• 4
I-
I•• « ►
iTorque
!Nm'v".» « -^–
i ■ I• » ••
rower
.kW \ .r7^..ι: i
j1 ; ,
i
iCorrection factor :
Γ –
Corrected b^ake power kW *• •r
Corrected fuel consucption –'Γ■;■■■
ι
Corrected torque Nta
^ 1
Fov£r 'tobe
added ,for ...
auxiliaries
fitted in "
excers of
table 1.(See
appendix 1,
parafroph %
and appendix 2f
paragraph 9)
Power tobe
subs trac ted ;
when fan not
fitted (see ~
table 1
nctf V)No.1 • • • » » ■•• >*• • • K • I
No.2I
«• •• «••»t
No.3».;r ...
9• I
'- ' , |
I
j
!, ^ .i
!
!
i
i ' Ii
I
1' • i
L
Net power kir.I
I
Nettorque Nm "l - 1-
I
%
Delete whichever does notapply .
*+/ Applicable todiesel en^ine only »

6.2.Exhaust smoke ind^x (tobecompleted fordiesel engines only):
Ermine speed j
(r.p.m .) ,■ I
»*Nociinal flow.C
(litres /second )
r ".- '
ILimit absorption
values
(n.-1)Measured absorption
i values
ί«· ■*·1^N.
– ,
*> . ■" I
X•..*•«M....
? -• '- II
A..
-
L 1
J6.3.Maximum net power : kV .at. r8p.ro.
6.4.i^axiœua 'net' torque :•••.•••••••• Km
7. Engine submitted fortesting on
6. Technical service conducting'the tests
9. Date cftest report issued bythat service ••••••••••••••• «•••••••«•<
10.Number oftest report issued bythat service ••••*••••••••••••••••••<
11.Place
12.Γ&ΐβ
15.-Signature
14.The following documents are annexed tothis communication :
1copyofappendix l/2-–^dulycompleted ,withthadrawings and
docuaents required for thedifferent items *
The maximum net power and thecorresponding engine speed are determined ,
where applicable ,bythehorizontal tangent tothe curve ofthanet power asa
function ofengine speed . v
**/ Strike outwhat does notapply * _s - . .....

Appendix 4
STATED NT OFTHS RESULTS OF C/T,CULATION OFA V AILABLE PCIiP
1.Auxiliaries fitted for vehicle application additional tothose required for
net power measurement .- ,
•*• * Auxiliary ^Make and type
Reference number
No.1
I
I :
i'
I
3 • ■" !. j
! : i
4
?. Calculation.' ofavailable power .
|Ervine Tpecd , ;
i– ; ; – i1
I 1 IL_i
Corxve toi netpever• i
if - ■\
1
Corrected nettorque Hnr-^ Iι . ■ ι
I<_ IIΓ",' – 11– ■I
I
I
icwer abr.crbed
hyadJiticnal
auxiliaries
•i-y7j ■' ■Ko.1
2
5
ν4
\ i9-ι' I
•I
Available pewer (kVT)^__ 1i
I
Available torque (Nn)
Γ , : : :
j+/ Netpower report details .
Technical service conducting the net power tests
Date ?oftect report issued bythat service
Nurr .bcr oftest report issued bythat service
3. naxiroun available power ........ .... 0kVf"^at r.p.n .
4..Kaxinun available torque Nra^/at•••••••••••••••••••••••• r.p.m .
5.Technical service issuing thereport ••»•••••••••••••••••••••••••••••••
6.Date oftest report issued by .that service •••••*••••••••••«••••••••••••••••■«
- ■ ■ • ... - .. -- -

7. Number oftest report •issued bythat service ............................
8. Place
9. Date
10.Signature ofInspector
Notes tothe Statement ofthe Results ofCalculation ofAvailable Power .
1/Available Pover –method ofdetermination :Thesmilable power isth<?
cUffervnce between thenet power determined according tothe method described in
paraf-raph 5.above ana the cunofthe pover oftheauxiliaries other than those
specified ,intable 1(paragraph 5.1-1.2 .above )andincontinuous operation .
2J Power tobeincluded forthevariouc auxiliaries
This note gives anon-exhaustive list ofauxiliaries which can befitted to
thevehicle andindicates the power tobetaken into account incalculating *the
available power asdefined innote l/above . ' ■. ■
Air compressor orother sources ofpover for thebraking device .Only the
power inthe unloaded condition shall betaken into account incalculating the
available power .
Power steering -compressor .Since this operates intermittently ,only the
minimum power absorbed will bet^ken into account .
Suspension compressor .Since this operates intermittently ,only the minimum ,
power absorbed will betaken into account .
Air–conditioning 1orrefrigerating system *The rated power absorbed bythis
equipment will betaken into account -. - -
(
-- . - 4
Mfchanieal equipment taking power directly orindirectly from the engine of
the vehicle and incontinuous operation while the vehicle ismoving
(cesent-cixer etc.). Thenominal power absorbed bysuch equipment will betakeninto account . "
The maximum available power and torque and corresponding engine speeds
are determined byconsidering thehorizontal tangent where applicable .