CELEX: 51975PC0621
Language: en
Date: 1975-12-08
Title: Proposal for a COUNCIL DIRECTIVE on the approximation of the laws of the Member States relating to the measures to be taken against the emission of pollutants from diesel engines for use in wheeled agricultural or forestry tractors (submitted to the Council by the Commission)

ARCHIVES HISTORIQUES
DE LA COMMISSION
COLLECTION RELIEE DES
DOCUMENTS "COM"
COM (75) 621
Vol. 1975/0236
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 ---pagebreak--- COMMISSION OB THE J3UROÎMN COMMUNITT^
                                     COM(75* 621 final
                                     Brussels , 8 December 1975
                             Proposai for a
                            COUNCIL DIRECTIVE
                  on the approximation of the laws of the
                  Member States relating to the measures
                  to be taken against the emission of
                  pollutants from diesel engines for use
                  in wheeled agricultural or forestry
                  tractors
              ( submitted to the Council by the Commission )
  COM(75 ) 6 21 final
 ---pagebreak---                                EXPLAKATORY ï®:ORAKDUi;
CÎSItjR'-L
This proposal for a Directive falls within the context of the Community
type-approval procedure for wheeled agricultural or forestry tractors
which was the subject of Council Directive 74/150/S3C of 4 !Tarch 1974 ( l )«
This proposal concerns tho approximation of the laws of the Kember States
relating to the measures to be taken against the emission of pollutants from
compression–ignition engines ( diesel engines ) for use in such tractors .
Such measures have proved necessary beaause these tractors represent an
increasing proportion of road traffic in rural areas of the Community .
As a rule , there is no appreciable difference between the mode of opera­
tion of diesel engines in tractors used on the roads and that of commercial
vehicles fitted with the same type of engine . Consequently , as far as the
emission of pollutants is concerned , the Commission considers it advisable
in principle that tractor engines be made subject to the tests and limitations
already applicable to motor vehicles under Council Directive 72/30'5/EEC of
2 August 1972 ( 2 ).     Such a measure would have the advantage of ensuring fair
treatment for all diesel-engined vehicles travelling on the roads and of
simplifying the task of the authorities responsible for the type-approval
and inspection of these vehicles .
C 01 lu® 7 S ON TH'j PRCPOSZD DriECTT/E
This proposed Directive is limited in scope to wheeled agricultural or
forestry tractors which have a maximum design speed of between 6 and 25 km/h
( Article l ).
( 1 ) O.J. K° L 84 , 23 iîarch 1974 , p. 10.
U) O.J. N° L 190 , 20 August 1972 .
 ---pagebreak--- The purpose of Article 2 is "tci integrate into the E3C type-approval
procedure the requirement® relating -to the emission of pollutants
from diesel engines used in these tractors .
Since certain Member States have no national type-approval procedure at
present , it is necessary to letdown provisions for ensuring - the use . in those
States of vehicles complying with the requirements of . the Directive     »
( Article 3) (*).               -.
In the event of modifications to the prototype , the Member State conducting
the type~approval must be in a position to assess whether new tests are
necessary (Article A)*
Article     lays down the procedure for the adaptation to technical progress
of the provisions of the annexes ( see also Article 13 of Council Directive
74/150/EEC of 4 March 1974 on the type–approval of wheeled agricultural or
forestry tractor?).
Article 6 lays down , two time-limits . Before the expiry of the first ,
Hember States are required to adopt and publish the measures necessary to
comply with the Directive .   The second time-limit fixes the date on which
all Member States must simultaneously apply the common rules (Article 6 ,§ l ).
Lastly , the Commission must be given reasonable notice of any draft
provisions formulated by the llember States in the field covered by the
Directive ;   this will enable the Commission to put forward any observations
on the draft concerned (Article 6 § 2)«
(*) OJ N° L 73 f 27 March 1972 i "Documents concerning the aocession to
    the European Communities of the Kingdom of Denmark , Ireland and the
    United Kingdom of Great Britain and Northern Ireland". Act concerning
    the Conditions of Accession and the Adjustments to the Treaties-
    Annex I , Title X.
 ---pagebreak---                                   - 3 -
The technical annexes set out tho necessary definitions , the procedure for
applying for ESC type–approval , the test specifications and descriptions
and the limits to be observed in respect of the opacity of the smoke
emitted during the test under steady-state operating conditions .
D«6irous of taking into account the specific differences peculiar to the
operation of tractor diesel engines in road traffic conditions , the
Commission , in agreement with the experts of the Working Party on Tractors
and Agricultural Machinery , considers it advisable to make a number of
changes in the above mentioned test with respect to the test prescribed in
the Directive on motor vehicles (7^/306/EEC) . Accordingly , the test is
required to be carried out at 80-fo of the maximum engine load in the case •
of tractors , instead of under full load as in that of motor vehicles . .
Furthermore , the lower limit of the range of speeds to be employed must
be the speed at which the engine develops its maximum torque in the case
of tractors , instead of 45$£ of the engine speed corresponding to maximum-
power as in the case of motor vehicles .
CONSULTATION OF THE EUROPEAN PARLIAIIENT AND THE ECONOMIC AND SOCIAL COKKHTEB
In accordance with the provisions of Article 100 (§ 2) of the EEC Treaty,
                      .i                     .                <
the Opinions of these two bodies must be sought .
 ---pagebreak---                                        - 1 -
                                      COUTCIL
                                Council Directive
on the approximation of the laws of the Member States relating to the
measures to be taken against the emission of pollutants from diesel enrines
                               for use in tractors
THE COUNCIL OF THE EUROPEAll COTJIUMTIES s
Having regard to the Treaty establishing the European Economic Communit
and in particular Article 100 thereof ;
Having regard to the proposal from the Commission *
Having regard to the Opinion of the European Parliament ;
Having regard to the Opinion of the Economic and Social Committee *
Whereas the technical requirements which tractors must satisfy             accordance
with national lawa relate , inter alia , to the emission of pollutants fron
dieeel engines for use in tractors 5
Whereas these requirements differ from one Member State to another ; whereas
it is therefore necessary that all the Ilember States adopt the same require­
ments ! either in addition to or in place of their existing rules , in order
to allow the EEC type approval prooeduro which was the sub,) tot
of Council Directive Uo                of 4 March 1974 on the approximation
of the laws of the Member States relating to the type approval of agricultu­
ral tractors and machinery (l ) to be applied in respect of each type of
tractors ;
Whereas the approximation of national laws relating to tractors entails
reciprocal recognition by Membor States of the tests - carried out by each
of them on the basis of common requirements ; whereas , in order to worfe properly
attoh a systatE involves the application of these requirements by all MiiAor
States with effect from the same date ,
                                                                • • t /• • •
 ( 1 ) O.J. n° L 84 of 28/3/1974 , p. 10
 ---pagebreak---                                          - 2 -
HAS ADOPTED THIS DIÏŒCTIVE :
                                      Article 1
1,      " Agricultural or forestry tractor * means any motor vehicle fitted with
wheels or caterpillar tracks,.       having at least two axles , the main function
of which lies in its tractive power and which is specially designed to tow,
push, carry or power certain tools , machinery or trailers intended for agric­
ultural or forestry use . It' may be equipped to carry a load and passengers .
2.       This Directive shall apply only to tractors defined in the preceding
paragraph which are fitted with pneumatic tyres and which have two axles and
a maximum design speed        between 6 and 25 kilometres per hour.
                                      Article 2
         No Member State may refuse to grant SEC type-approval or national         . ,
typa-approval of a tractor on the ground that pollutants are emitted by the
diesel engine iftieh drives tho tractor if the tractor satisfies the requirements
laid down, in Annexes I, II, IHj IV and VI.
                                               * • :     I        ' i '*'}>      \
             . :•           '   -v    Article 3 - '
         No Member State may refuse the registration or may prohibit . the sale,
entry into servioe or use of any tractor on tho ground that pollutants ars
anitted by th« SlSsel «np±ne which drives the traotor if the traotor satisfies
the requireisiesats laid down ia-Annexes I, II, III, IV and VI.
                         ».
                                     Article 4
         The Member State which has granted type approval shall take the neces­
sary measures to ensure that it is informed of any modification of a part or
charact eristic referred to in item 2.2 of Annex I. The competent authorities
of that State shall determine nahethep freBh tests should be carried out
on the modified tractor and a fresh report drawn up . Where such tests reveal a
failure to comply with the requirements of this Directive, the nedification
shall not be approved *
 ---pagebreak---                                      Article 5
         The amendments necessary .to adapt th@ provisions of Annexes I to X
of this Directive to ta'ce acoount of technical progress shall be adopted in
accordance with the procedure laid down in Article 13 of "Council Directive Kb
74/ 150/EEC of 4 March Vj-l-U
                                     Article 6
1.       Kenber States sl rll adopt and publish by 1 October 1977
provisions necessary to comply with this Directive and shall forthwith
inform' the Commission thereof . •
         They shall ir.plenent thes® provisions \*ith effect from 1 April 1S78 .
2.       After notification of this Directive, Kember States ehall take etepc
to inforn the CotaciEBion, in sufficient tln* for it to rralca comments , of any
draft laws , regulations or administrative, provisions which, they intend - to - .
adopt in the fiald covsrofi by this Directive .
          • »                 .    *        ;                  '  ►'
                                     Article 7
         This Directive is addressed to the Member States .
 ---pagebreak---                                             ANIIEX. I ( 1 ).
              DEFINITIONS , APPLICATION FOR EEC TYPE i\PPP.OVAL , STOOL OP THE
              COPlPLECTSD ABSORPTION COEFFICIENT . SPECIFICATIONS AND TESTS AND
                                     CONFOftMITY OP PRODUCTION .
( l .)             •
2.             DEFINITIONS                                                  ,
               For the purposes of this Directive :
( 2.1 .)
2.2            tractor type as regards the limitation of the emission of pollutants
                from the engine' means tractors which do not differ in such essential
           .    respects as the tractor and engine characteristics defined in Annex II j
2.3 *           'Diesel engine' means an engine which works on the compression-ignition
               principle ;
2*4 *        . 'Cold-start device' means a device vihich by its operation temporarily
         .     increases the amount of fuel supplied to the engine and is intended
               to facilitate the starting of the engine ;                     :
2,5 .           'Opacimeter' means an instrument for continuous measurement of the
               absorption Coefficients of the light "by the exhaust gases, emitted
               "by tractors .
3*             APPLICATION FOR EEC TYPE APPROVAL
3.1 -.,        The application for approval must "be submitted by the tractor manu­
               facturer or by his duly accredited representative .
3.2#           It must be accompanied by the undermentioned documents in triplicate
               and the following particulars :
3 . 2.1 »      a description of the engine type including all the particulars
               referred to in Annex II;-' '
3.2 . 2 »      drawings of the combustion chamber and of the upper face of the piston.
( l ) The subdivision into points of the Annexes to this Directive is the game
       as that of the Council Directive 72/ 306/eEC of the 2 August1 1972 on the
       approximation of laws of the Member states relating to the measures to be
       taken against the emission of pollutants from diesel engines for use in
       vehicles ( O.J. n° L 190 of 20/8/1972 ).
 ---pagebreak---                                                                               -s :: "t • t
  3*3 *           An engine and the equipment prescribed in Annex II to the Regulation
                  for fitting to the tractor to be approved shall "be submitted to the
                  technical service conducting the approval tests defined in item 5 »
                  However , if the manufacturer so . requests and the technical service
                  conducting the approval tests agrees , a test may "be carried out on
                  a tractor representative of the tractor type to be approved.
  3bis            EEC TYPE AFPROVAL       " " - *' ; . •    :i' ' ■ ■ . ■ . -
                  A certificate conforming to that shown in Annex X shall be attached
                  to the EEC type approval certificate#
  4.              SYKBOL OP THE CORRECTED ABSORPTION COEFFICIENT                           V
  (4.10                                                                       / ' "7 ' '
  ( 4.20
  (4.30            ■ :'        ' -7                                                            •
  4*4
  4.4 *.       ' To every tractor conforming to a tractor type approved under this
                  Regulation there shall be affixed, conspicuously and in a readily
                  accessible place specified in the Annex to ths type approval . certifi­
                  cate shown in Annex X , a symbol being a rectangle surrounding a
            ■- figure - expressing in          the corrected absorption coefficient obtained ,
              , at the time of approval , during the test , under free acceleration , . and
                  determined at the time of approval by the method described ilk item
                  3.2 . of Annex IV .
  4.5' 'i'i: > The symbol must be clearly legible and indelible.
  4»6 »           Annex IX gives an example of the symbol . '
  5.              SPECIFICATIONS AND TESTS
  5.1 .           General             , '   .                                                '
                  The components liable to affect the emission of pollutants shall be.
                  so designed, constructed and assembled as to enable the tractor, ill
                  npi^nal use , despite the vibration to which it may be subjected , to
                  comply with the provisions of this Directive .
  '                                                            '                      '        ** " *
  5 *2 •.         Specifications concerning cold-start devices
  5.2.1 .         The cold-start device shall be so designed and constructed that it
               • cannot be brought into or kept in action when the engine is running
             " 'normally..
  5.2.2 .         The provisions of item 5.2.1. above shall not apply if at least                    one
c                .of the following conditions is' met :          ••         ... ....
 ---pagebreak---                                                                Annex I , page 3
5.2.2.1 . The light absorption coefficient of the gases emitted "by the engine
            at steady speeds when measured "by the method described in Annex III
            with the cold–start device operating is within the limits prescribed
            in Annex VI .
5.2 .2 .2 .Keeping the cold-start device in operation causes the engine to stop
            within a reasonable time .
5.3 .       Specifications concerning the emission of pollutants          . »
5.3.1 ,     The emission of pollutants by the tractor type submitted for approval
            shall be measured by the two methods described in Annexes III and IV ,
            relating respectively to tests at steady speeds and to tests under
            free acceleration ( l ).
5.3.2 .     The emission of pollutants , as measured by the method described in
            Annex III , shall not exceed the limits prescribed in Annex VI .
5.3.3 «. In the case of engines with an exhaust-driven supercharger the absorption
            coefficient measured under free acceleration shall not exceed the
          . limit prescribed in Annex VI for the nominal flow value corresponding
            to the maximum absorption coefficient measured during the tests at
            steady speeds , plus 0,5 m–1-.
5*4 *    ' Equivalent measuring instruments shall be allowed. If an instrument
            other than those described in Annex VII is used , proof of its equi­
            valence for the engine considered shall be required.
( 6 .)
( 1 ) A test under free acceleration shall be carried out , especially in order
       to provide a reference figure for administ rat ions which use this method
       to check vehicles in use .
 ---pagebreak---                                                               Annex I. page 4
7.        CONFORMITÉ OP PRODUCTION
7«1 »     Every tractor in the series must conform, with regard to components
          affecting the emission of pollutants by the engine , to the tractor' *-
          type approved.                         •'
(7.2 .)
7 «3«     As a general rule conformity of the tractor -with the approved type ■ >
        . as regards the emission of pollutants from diesel motors shall be
          verified on the basis of the description given in the Annex - to the
          ESC approval certificate shown in Annex X. In addition :
7.3 .i . Where a check is carried out on a vehicle taken from the series* the *
          tests shall be carried out as follows :                :
7»3*1*1»A tractor which has not been run in shall be subjected to the test"* *
          under free acceleration described in Annex IV . The vehicle shall be
          deemed . to conform to the approved type if the absorption coefficient
          determined does not exceed by more than 0,5 m–1 the figure shown in
          the approval mark.                                         ' v
7»3»l»2.If the figure determined in the test referred to in item 7«3»1 » above
          exceeds by more than 0,5       the figure shown in the approval mark,
          a tractor of the type considered or its engine shall -be subjected to
          the test at steady speeds over the full-load curve , as described in
          Annex III . The emission levels shall not exceed the limits prescribed
          in Annex VI .
(8 .)
(9 .
 ---pagebreak---                                                         '                          • ANNEX II .     . - :■   . -
                          ESSENTIAL CHARACTERISTICS OP THE TRACTCR AND THE 0TG3HE MD . ....                                         ..
                                       NJPÓPJ.IATICIJ. CCAI0EHLTIHA-TIIE.CCAN)UC?R' OP . TESTS ( X )
  1,              _ , Description of engine
   1.1 .                 Maire                                                                                          ....
   1.2 . , .Type                                                                                           .
   1»3 »                . Cycle : four-stroke/ -two-stroke ( 2 ) >•••••••••••••
   1.4 .                  Bore                                                          mm      ■ ■
  1.5 .                   Strolce ••••••••••••»••••«•••• Am
  1.6 .                  ÏTumber of cylinders
   1*7 *                  Cylinder capacity ........... cm-'
  1.8 .                   Compression ratio ( 3 )
     >■      >                                     6        *           -f     ,
                ,        System of cooling
  1..10 .            •
                         Supercharger with/without ('2)' description 'of the system
                          -          -       & »   » ,        ,
                               .   .                                  .• » >     »
  1.11 . . Air filter : drawings , ' ta* makes'" and types
  2.                      Additional anti-smoke devices ( if any, and if not covered "by another
    •'          '-■heading)                               .     .   .                                                           ■" ?
            : • ' «« Description and diagrams
  3 . * < '■> Air ihthke' .an® fuel f^ed
  3.1 *                  Description and diagrams of air intakes and their accessories
                     "( heating device , intake silencer, etc .)                                                              ■        I.
  3.2 . ' . Fuel feed /. .
                      *    .     '       » ï   • »     ; '
                                                                             ,      "
  3.2.1 .                Féed punp '
                         Pressure ( 3 ) ...... ....... or characteristic diagram ( 3 )
►       ' •   •      1 v , k                                                                                                             .
  3*2.2 .                Injector
  3.2.2.1.Pump
 3.2,2.1.1 . Make(s )                                             »
  3*2.2«1.<V Type(s )                                                                                             • ••••*•,*«•»•«
„3 .2 .2 .1.3 ... Delivery ...••• mm^ per stroke at pump speed of ...... rpm ( 3 ) at
          .                  " full 'iri.jectiDil ; or characteristic .diagram ( 2 ) (3 )
         \      -
                                  Mention the method used : On engine/on pump test bench ( 2 )
                                       .                                                                      " +        ■ 9*w/ m *
  ( l ) In the case of non-conventional engines and systems , particulars ) equivalent
             to those referred to below shall be supplied by the manufacturer .
  ( 2 ^ Strilce out what does not apply.
  ( 3 ) Specify the tolérance .
 ---pagebreak---                                                                                                          - -iiïic::       » >3'       2
3*2.2.1.4 .                      Injection advance
3.2.2.I.4.I. Injectiori advwice curve
3 .2.2 » 1 . 4 . 2 . Timing                                                                                                             ..
3.2.2.2 .                        Injection piping                                        "'
3.2,2;2.iV ' r téngtK V..7...V. ............. ..v.. ,.. . .
3 *2 . 2 . 2^2 .              ' Internai <fi'ámetéi* Y.Y .V. ..
3.2.2,3 » '                      Injectór(s ) ...Y..V.V. *.
3*2.2.3.1 .                      Makc ( s) ».
3.2.2.3.2 .                      Type(s ) •••••
             t  ^    V .       «* ■»  .. .
3*2.2.3«3 »                      Starting pressure                                          "bars ( 2 )-                 ;
                                 or characteristic diagram ( t ) ( 2 )
3.2.2.4 .                        Governor ' *                           " ■         v                                                   J '
3.2.2.4.1. * Make(s)                                                                          .............. ..........
3*2#2«4»2 »                     Typ©(fi )
3.2.2.4.3 ."                     Speecl cvfc 'which? ctft-ofT BtartB*-und^r load» :
\             'V -V                         f. .     *  '   : ■*.-
3 . 2.2.4 »4 «                   Maxinrun no«-lbad spoed s
3.2.2.4»5t ■                     Idling spe,ed :                                                                                      rpm
                                                          •ί                '     -  * .              *                -. ·.·■            ·*.
3*3 »                            Cold-start system
3»3vl «i- -                 ■ -Maice( s) ... ....»•»
3.3.2 .                          Type(s )
3.3.3 . .                .       Description
4.                               Valve timing
4.1 . ' f' r ' Maximum lift 'of valves 'and " angles of opening and el osing in
                                 relation to dead centres
4.2 .                            Reference and/ or setting ranges ( l ) ..••*•••••••
5.                               Exhaust device
       .        • <* " T + . # t . . t ,- > „                      ^          * i '#*/ , - ,        4 '         Vi 4
                                 Description and diagrams
                                                 * *                 ·>***»■· 4 ·                ; . · *            »·    ν " '   ·   * .
5.2 . ,                         Mean, back-pressure at maximum power : ••••••••••••••» »• ■•••»...
                                                                                                                         Pascal (Pa)
6. ' "              "            Transmis si 6n*
6.U "                 v ' ' Moment oi* inértlh."' 6f' feh^ifte* flyt^ieel'
6.2 .                      " Additional moment of 'inertia with ncr gear "engaged
  ' «- X * '
  1 ) Strilce' out what- does not apply.                             t                                                   <      '   *
  2 ; Specify the toleraaice . i                       ' V.
 ---pagebreak---                                                                  Annex II , page 3
7.          Additional information on' test conditions
7*1 *       Lubricant used
7 «1 *2 • . Type • • • • #                 «*•••
            ( State percentage of oil iii mixture if lubricant and fuel mixed)
8.          Engine performances
8.1 .       Idling speed                                   rpm ( 2 )
8.2 .       Engine speed at maximum power                  rpm v.2 )               . v
8.3 .       Povrer at the six points of measurement referred to in item 2.1 . of
            Annex III
8*3.1.      Power of the engine measured on the test "bench : indicate the standard
            followed ( BSI - CIJNA - DDI - GOST - IGM - ISO - SAE, etc .) ( l )
8.3.2 .     Power measured on the wheels of the vehicle
                                     Engine speed ( n )         Measured power
                                           rpm                        kl'I
                1.                ... ........ ...........
              : 2.
                3»
                4.
                5.
                6.
( 1 ) Strilce out what does not apply.
( 2 ) Specify the tolérance
 ---pagebreak---                                                                         ANÏTEX III
                                                                    TEST AT STEADY SPEEDS
1 , DPTROIXJCEJCCI     ^ *    •"
                                               ...        ..
                                         ' v ' <>" > *«• * "
                                                                    .....
                                                                       *\ v * •                ' V-*     . «.
                                                                                                                .     . .
                                                                                                              ,/. T \, /           ..    1
1.1 . 1 This "eSiSieifc' S.escri'bfc&'thte' method*1 of* •de^ermiainjvenri.esions of • pollutant's
       vi , ...at different steady gpe.eds a-fc §0 per . cent of the maximum load.                                                            .
1.2 .            The test may he carried out either on an engine or on a tlractor.
2.               MEASUREMENT. PRINCIPLE
                              '                                     .                                                   •-
                                 ■ ■ '.■·   ·■ · ■ '-ν, ■ -· -·*.. ' ^ /      · . ·■'·  < ί -·   ■.· ■*.           *
2.1 .            The opacity. of the .exhaust ^gases produced by the engine shall he mea-r
                 sured with the engine running under 80 per cent of the Maximum load
                'and at steady speed.;' Six measurements shall he made at engine speeds '
                 spaced out uniformly between that corresponding to maximum power and
                 the higher, of the following two . engine speeds :                                                                        ..
                 – engine ^>eed corresponding to maximum torque ; and                                             ' '
                 - 1000 rpm.                                                                                          .               •t
              J -The --extreme points, of measurement shaJJ _J).e. . situated at the limits of
                 the interval defined above . .,
2v2v             In- the case of -diesel .engines .which xi£e. £it„te.d with an ...air supercharger
                 which cp-n, Ve engaged , at wi}l , and in which engines the entry into
                 operation of the air supercharger automatically brings about an increase
 * '**' ■* *'v ifr'the "quSfltity of • ftiel " injected ; 'the -measurements shall - he made both
          ,-j, . with, and, without the. supercharger forking.
- * ' ■ • ---,         'cach : engine speed, the* result v of the measurement shall be the
   , . ,»        higher of the tiro figur.es obtr.in.ecU.                              . .
y, y * ^ wst :Ç£»IÎ)iticîïs                           ^                                   -■
3*1 .            Tract or or engine
3.1.1 .          The engine or the tractor shall be submitted in good mechanical
                 condition. The engine shall have been run in.
3.1.2 ,          The engine shall be tested with the equipment described in Annex II .
3.1.3 . . The settings of the engine shall be those described by the manufac­
                 turer and by Annex II .
3.1.4 *          The exhaust device shall not have any orifice through which the gases
                 emitted by the engine might be diluted. .
3,1 . 5 *        The engine shall be in the normal tforking condition prescribed by the
                 manufacturer. In particular , the cooling water and the oil shall each
                 bo at the -normal temperature indicated by the manufacturer. .
                                                                                                                           *-•/ • •
 ---pagebreak---                                                     Annex III . page 2
Puel
The fuel shall "be the reference fuel whoso specifications are given in
Annex V •
Test laboratory
The absolute temperature T of the laboratory, expressed in Kelvin , and *
the atmospheric pressure H, expressed in torr , shall be measured , and
the factor F shall be determined by the formula
                    » - < ¥ >°'65 - < é >0'5
For a test to be recognized as valid, the factor F shall be such
that 0,98 £ P £ 1,02 .
Samplmg and measuring apuaratus                                  '     • '
The light-absorption coefficient of the exhaust gases shall be measured
with an opacimeter satisfying the conditions laid down in .Annex VII *
and installed in conformity with Annex VIII ♦
LHHT VALUES     , .  -      '
For each of the six engine speeds at which the absorption coefficient
is measured pursuant to paragraph 2.1 . above , the nominal gas flow G , *
expressed in litres per second , shall be calculated by means of the
following formulae :                   *
                                       Vn
- for two-stroke engxnes          G «
                                       60
                                       Vn
- for four-stroke engines         G
                                      120
where :
V is the cylinder capacity of the engine expressed in litres ; and
n is the engine speed in revolutions per minute . .
For each engine speed the absorption coefficient of the e^iiaust gases
shall not exceed the limit value given in the table in Annex VI , Where
the value of the nominal flow is not one of those given in that table ,
the limit value applicable shall be obtained by interpolation 011 the
principle of proportional parts .
 ---pagebreak---                                        ÀNKKX TV
                              TEST UNDEi FIŒE ACCELERATION
1.       TEST CONDITIONS
1.1 .    The test shall "be carried out on the tractor or engine which has
         undergone the test at steady speeds described in Annex III .          * V.'
1.1.1 .  If the engine is tested on a "bench the test shall "be carried out as 1
         soon as possible after the test for measurement of opacity at steady
         speeds . In particular , the cooling water and the oil shall be at the
        normal temperatures indicated by the manufacturer .
1.1.2 .  If the test is carried out on a stationary tractor, the engine shall
         first be brought to normal operating condition "try a road run# The
        test shall be carried out as soon as possible after completion of "
        the road run .                                  -      . ■
1.2 .   The combustion chamber shall not have been cooled or fouled by a
        prolonged period of idling preceding the test .
1.3 * . The test conditions described in Annex III , items 3»l*t 3*2 « and 3.3 .,
         shall apply .
1.4 .   The conditions described in Annex III , item 3»4 «, with regard , to the '
         sampling and measuring apparatus shall apply.
2.      TEST IŒTHODS ■
2.1 .   If the test is   a bench test , the engine shall be disconnected from
        the brake , the  latter being replaced either by the rotating parts
        driven when no   gear is engaged or by an inertia substantially equi­
        valent to that   of the rotating parts .
2.2 .   If the test is carried out on a tractor , the gear-change control shall
        be set in the neutral position and the engine in gear ,
2.3 .   With the engine idling, the accelerator control shall be operated
        quickly , but not violently , so as to obtain maximum delivery from the
        injection pump . This position shall be maintained until maximum engine
        speed is reached and the governor comes into action. As soon as this
        speed is reached the accelerator shall be released until the engine
        resumes its idling speed and the opacimeter reverts to the correspond­
        ing conditions .
2.4#    The operation described in item 2.3 . above shall be repeated not less
        than six times in order to clear* the exhaust system and to allow for
        any necessary adjustment of the apparatus. The maximum opacity values
        read at each successive acceleration shall be noted until stabilized
        values are obtained. No accound shall be taken of the values read while
        the engine is idling after each acceleration. The values read shall be
        regarded as stabilized when four consecutive readings are situated
        within a band width of 0,25 mr~'" end do not form a decreasing sequence .
        The absorption coefficient       to be recorded shall be the arithmetic
        mean of these four values .
 ---pagebreak---                                                      Annex XV , page 2
Engines fitted with an air supercharger shall be subject , where
appropriate , to the following special requirements :
In the case of engines with an air supercharger which is coupled with
or driven mechanically by the engine and is capable of being disengaged ,
two complete measurement cycles with preliminary accelerations shall
be carried out , the air supercharger being engaged in one case and
disengaged in the other. The measurement result recorded shall be
the higher of the two results obtained;
In the case of engines with an air supercharger which can be cut out
by means of a driver-operated bypass , the test shall be carried out
with and without the bypass . The measurement result recorded shall
be the higher of the results obtained.
DETERMIMTION OP THE CORRECTED VALUE OP THE ABSORPTION COEFFICIENT
Notation                                           w
   = value of the absorption coefficient under free acceleration
     measured as described in item 2»4 » of this Annex ?
   = corrected value of the absorption coefficient under free . .          •
     accélération :
 M = va-'-ue   "kke absorption coefficient measured at steady speed
     ( Annex III , item 2*1 * ) which is closest to the prescribed limit
     value corresponding to the sane nominal flow;
   = value of the absorption coefficient ( Annex III , item '4.2 .) for
     the nominal flow corresponding to the point of measurement which
     gave the value S^;
L    effective length of the light path in the opacimeter ,.         .
When the absorption coefficients are expressed in m–^ and the effective
length of the" light path in metres , the corrected value       is " given
by the smaller of the following two expressions :
           H " X" ' ** °u ^ = ** + °' 5 '
 ---pagebreak---                                             ANNEX V
           SPECIFICATIONS OF REFERENCE FUEL PiJESCRIBED FOR APPROVAL TESTS AND
                          TO VERIFY CC8IFOIMITY OF PRODUCTION
                           V        .
                                                Lxmit s and unit s           • Method
      Density 15/ 4°C                         0,830 i 0,005              ASTM D    1298-67
      Distillation                                                       ASTM D       86-67
         50 fo                                min. 245 °C
         90 1o                              ■ 330 ± 10 °C
         Final boiling point                  iaax. 370°C
     Cetane index                             54 ± 3                     ASTM D    976-66
     Kineiaatic viscosity at 100°F            3 t 0,5 est                ASTM D    445-65
     Sulphur content                          0,4 t 0,1 <fo by weight    ASTM D    129-64
     Flash-point                              min« 55°C                • ASM D      93-71
     Cloud point                              max» – 7°C                 ASM D     2500-66
     Aniline point                            69 t 5°c                   ASTÎ-I D  611-64
     Carbon residue on 10 % bottoms        ■ ma:s« 0,2 % by treight      ASTM D    524-64
     Ash content                              raax« 0,C1^0 by wei^it     ASÏÏ4 D   482-63
     Water content                            mec:# 0,05^ by weight      ASTM D     95-70
     Copper -• corrosion test at 100° C       ncx« 1                     ASTM D    130-68
     Net calorifio value                      ( 10 250 + 100 kcal/kg)    ASTM D       2-68
                                              ( 18 450 + 180 BTU/ lb )           ( Ap , VI )
     Strong acid number                       nil mg Koly g              ASTI-1 D 974-64
    Mote : The fuel must be based only on straight-run distillates , hydro–
>-*         desulphurized or not , end must contain no additives#
 ---pagebreak---                                      MNBC VI
                LBCLT VALUES APPLICABLE M THE TEST AT STEA0X SPEEDS
            Nominal flow G
                       /
                                                  Absorption coefficient K
             litres/ second                                  13–
                      42                                    2,26
                      45                                    2,19
                      50                                 • 2,08
                      55                                   1,985
                      60 ,                                 1,90             . ,
                      65                                   1,84
                      70                                   1,775
                      75                                   1,72
                      80                                   1,665
                      85                                   1,62
                      90                                   1,575
                      95                                   1,535
                     100                                   1,495
                     105                                   1,465
                     110                                   1,425
                     115             ' '                   !, 395
                    120                          •         1,37
                    125                                    1,345
                    130                                  Ί»32
                    135                                    1,30
                    140                                    1,27
                 ; '145                                '   1.25
                    150                        ' •         1,225 " ~ *
                    155                                    1,205  ,
                    160                                    1,19
                    165                            ' '     1,17
                    170                                    1,155
                    175                                    1,14
                    180                                    1,125
                    185                                    1,11
                    190                                    1,095
                    195                                   1,08
                    200                                   1,065
Note : Although the above values are rounded to the nearest 0,01 or 0,005 , this
       does not mean that the measurements need to "be made to thi3 degree of accuracy.
 ---pagebreak---                                                 ANNEX VII
                                    CHMACTEtilSTICS OF OPACIMETEtlS,  "
1.              SCOPE
                This annex defines the conditions to "be met lay opacimeters used in
                the tests described in Annexes III and IV .
2.             BASIC SPECIFICATION FOR OPACIMETERS
2.1 .          The gas to be measured shall be confined in an enclosure having a
               non-reflecting internal surface .
2»2* ...       In determining , the . effective length of the light path through the gas ,
               account shall be taken of the possible influence of devices protecting
               the light source and the photoelectric cell . This effective length
                shall be indicated on the instrument .
2 .,3 . . . . The indicating dial of the opacinjeter. shall have two measuring scales,
               orie ill absolute units of light absorption from 0 to 00 ( m– ) and the
               other linear from 0 to 100 ; both scales shall range from 0 at total
               light flux to full scale at complete obscuration. -
3.    ■        COIISTHUCTIOJjI SPECIFICATIONS
3.1 »          General
               The design shall be such that under steady-speed operating conditions
               the smoke chamber is filled with snoke of uniform opacity.
3*2 .          Snoke chamber and opacimeter casing
3.2,1 .        The impingement on the photoelectric cell of stray light due to
               internal reflections or diffusion effects shall be reduced to a
             " minimum ( e.g. by finishing' internal surfaces in matt black and by a
               suitable general layout ).
3»2.2 »        The optical characteristics shall be such that the combined effect of
               diffusion and reflection does not exceed one unit on the linear scale
               i-jhsn the smoke' chamber is' filled with smoke having an absorption  "
               coefficient near 1,7 m-1 .
3.3 »          Light source
 . . .. v The light source shall be' an incandescent lamp with' a colour- temp e- -
               rature in the range 2.800 to 3*250 XK.
 ---pagebreak---                                                                Annex VTI , page 2
3*4 »        Receiver
3.4.1 .      The receiver shall consist of a photoelectric cell with a spectral
             response curve similar to the photopic curve of the human eye ( maximum
             response in the range 550/ 570 nm ; less than 4 per cent of that maximum
             response below 430 nm and above 680 nm).
3 .4.2 .    The construction of the electrical circuit , including the indicating
             dial , shall be such that the current output from the photoelectric
             cell is a linear function of the intensity of the light received over
            the operating-temperature range of the photoelectric . cell . '
3.5 .       Ileasuring scales                                                   '   :
3o.l .      The light-absorption coefficient k shall be calculated by the formula
            ffl = fDQ. e–   where L is the effective length of the light path through
            the gas to be measured ,     the incident flux and Q) the emergent flux .
            When the effective length L of a type of opacimeter cannot be assessed
            directly from its geometry , the effective length L shall be determined
            - either by the method described in item 4 of this Annex ; of
            - through correlation with another type of opacimeter for which the
                effective length is known#
3.5.2 .     The relationship between the 0-10C linear scale and the light absorption
          . coefficient k is given by the formula
                          k           logc ( 1 –
            where N is a reading on the linear scale and k the corresponding value
            of the absorption coefficient .
3.5.3 .     The indicating dial of the opacimeter shall enable an absorption,
            coefficient of 1,7                                                    •
3*6 .       Setting and' testing of the measuring apparatus
                                                                                      <
3.6.1 .     The electrical circuit of the photoelectric cell and of the irdxcating
         . dial shall bo adjustable so that the pointer can be reset at zero when
            the light flux passes through the smoke chamber filled with clean air
            or through a chamber having identical characteristics .
3.6.2 *.    VJith the lamp switched off and the electrical measuring circuit opou
            or short-circuited , the reading on the absorption-coefficient soale
            shall be 00 , and it shall remain at 00 with the measuring circuit
            reconnected .
 ---pagebreak---                                                                         Annex VII , page1 3
 3»°*3.« An intermediate check shall "be carried out ,by placing in the sraoke
  1 ,         .'chamber a screen , representing a gas whose known. 1ight-absorption
                coefficient k, measured as despribed in item 3.5.I. , is between
                1 ,6 m-i and 1,8 m-J- . Trie value of k must be known to within 0,025 m-l.
               The check consists . in verifying that this value does not differ by
               more than 0,05 m–*- from that read on the opacimeter indicating dial
               when the screen is introduced between the source of light and the
            ■ photoelectric cell . . .
3»7 *          Opacimeter response                                            - - .
3»7»1 * The response time of the electrical measuring circuit , being the
               time necessary for the indicating dial to reach, 90 per cent of
               full-scale deflection on insertion of a screen fully obscuring the
        •      photoelectric cell , shall be 0,9 to 1,1 second.
3«7*2 » . The damping of the electrical measuring oircuit shall be such that
         ' the initial overswing beyond the final steady reading after any
               momentary variation in input ( e.g. the calibration screen) does not
          ,, exceed 4 per cent of that reading in linear -scale units . -
                                                     .  v      , -        '    :
3»7*3 » '"he response time of the opacimeter vdiich is due to physical phenomena
               in the smoke chamber is the time , "between • the beginning of the entry ,
               of the gas into the measuring apparatus- and the complete filling of
               the smoke chamber ; it shall not exceed 0,4 second.
3»7«4 « These provisions shall apply solely to opacimeters used to measure
          . opacity under free acceleration.
3.8 .         Pressure of the gas to be measure and of scavenging air
3.8.1 . The pressure of the exhaust gas in the smoke chamber shall not differ
               by more than 735        from the atmospheric pressure .
3.8.2 . The variations in the pressure of the gas to be measured and of the
   -           scavenging air shall not cause the absorption coefficient, to vary . •
              by more than 0,05          in; the case of a gas having an absorption
      : • coefficient of 1,7 mJ-, .
3.8.3 . The opacimeter shall be equipped vdth appropriate devices for measur­
               ing the pressure in the smoke chamber. , ,,         • ..     ■ > •
3.8.4 .. The limits of pressure variation of gas and scavenging air in the
               smoke chamber shall be indicated by the manufacturer of the apparatus .
3.9 *         Temperature of the gas to be measured
                                                                                  • «/••
 ---pagebreak---                                                                      Annex vil , page 4
3,9 . 1 .    At every point in the smoke:- chamber the gas temperature at the instant
         •   of measurement shall be rTjetfjeen; 70°C and a maximum temperature , specif-
           ' ied by the opacimeter manufacturer , . such that the readings over this
             temperature range do not vary "ay more than 0,1            if the chamber is
             filled with a gas having an absorption coefficient of 1,7 m-1 .
                                                                                    \ « ■
3.9.2 ,      The opacimeter shall be equipped with appropriate devices for measur­
             ing the temperature in the smoke chamber .              '
4.           EFFECTIVE LENGTH 'L' OP THE OPACBdETER
4.1 »        General                                            ■.     ■ ■   ■
4.1.1 . . In some types of opacimeter the £as between the light source and the
             photoelectric cell , or between transparent parts protecting the source
             and the photoelectric cell , i£ not - of constant opacity In such cases
             the effective length L shall be that of a column of gas of uniform
             opacity which gives the same absorption of light as that obtained .
             when the gas is admitted in a normal way into the opacimeter .
4.1.2 .      The effective length of- the - light path is obtained by comparing the
             reading N of the opacimeter operating normally with the reading N
             obtained with the opacimeter modified so that the test gas fills
             a well defined length L .
               ;    •                0
4.1.3 * ' I"t will be necessary to take comparative readings in quick succession
             to determine the correction to be made for shifts of zero .
4.2 »       Method of assessment of L
                                                                   4
4.2.1 .      The test gas shall be exhaust gas of constant opacity or a light-
             absorptive gas of a gravimetric density similar to that of the
             exhaus gas .
4.2.2 .      A column of length L of the opacimeter , which can be filled uniformly
             with the test gases , and the ends of which are substantially at right
             angles to the light path, shall be accurately determined. This length
             Lq shall be close to the presumed effective length of the opacimeter.
4.2.3 .      The mean temperature of the test gas in the smoke chamber shall be
             measured .
4.2.4 .      If necessary , an expansion tank of compact design and of sufficient
             capacity to damp the pulsations may be incorporated in the sampling
             line as near to the probe as possible . A cooler may also be fitted.
             The addition of the expansion tank and of the cooler must not unduly .
             disturb the composition of the exhaust gas .
 ---pagebreak---    s#
 . ' * »
                                                                                         iJÎIlK Yiï |          lî
4«2,5«              The test for determining the effective length shall consist of passing
:' •                 a sample of test gas alternately 'through the opacimeter operating
                    normally and through the same apparatus modified as indicated - in
            - ' item 4.1.2 ,                         •      ■                          ,
4»2»5»l«The opacimeter readings shall "be recorded continuously during the
                    test : with a recorder whose response time is equal to or shorter than
                    that of the opacimeter#
4»2.5*2»With the opacimeter operating normally, the _ reading on the linear
                     scale of opacity is H and that of the mean gas temperature expressed
                    in Kelvin is T.
                                                                                                    '        *
4.2,5.3.V!ith the known length L filled with the sane test gas , the reading
                    on the linear scale of opacity is N and that of the mean gas temper­
                    ature expressed in Kelvin is T ,
4»2«6,';,The effective length will be'
                                               • ; "                -, _ 1.ν ■                  :
         ~S  .... < ■          '
                                         ,ii =
                                                ,Jj      T l0{;' 1
                                                       5T*"            1
                                                                            100 '
                                                                         '. ■»» 11
    ■        r                                      o T        • .           N                '   , •     .» ,;V
      ■ ■ . ■■■■>.
             ' <. f.' • ' ,- - -                         ° lAOlA
                                                              0 r*( 1X – 100   2. )' ■      ■         - V
4»2.7 »            The test shall "be repeated with at least four test gases giving
              ' readings evenly  • . .
                                       spaced "between the 20 and 80 on the linear scaleΫ . ·,; * *;              ··.' -
4.2,8 ,            The effective length L of the opacimeter vri.ll he the arithnetic mean
                    of the effective lengths obtained as stated in item 4»6 » with each- ^
                    of the gases .
 ---pagebreak---                                              iSNES VIII
                               TNSTALLAT IQN MD USE OP TIIE OPACIMETEK
     1.         SCOPE
                This annex specifies the installation and use of opacimeters for the
                tests described in Annexes III and IV ,
•* •
     2.         S /KIPLING OPACIMETER .             \
     2.1 .      Installation for steady«speed tests
     2.1.1 .    The ratio of the cross–sectional area of the probe to that of the
                exhaust pipe shall not "be less than 0,05 » The "back pressure measured
                in the exhaust pipe at the intake of the probe shall not exceed 735 Pa.
     2.1.2 .    The probe shall "be a tube xjith an open end facing forwards in the axis
                of the exhaust pipe , or of the extension pipe if one is required. It
                shall be situated in a section where the distribution of smoke is
                approximately uniform# To achieve this , the probe shall be placed
                as far downstream in the exhaust pipe as possible , or , if necessary,
                in an extension pipe so that , if D is the diameter of the exhaust
                pipe at the outlet , the end of the probe is situated in a straight
                portion at least 6 D in length upstream of the sampling point and
                3D in length downstream. If an extension pipe is used, no air shall
                be allowed to enter the joint .     .
     2.1.3 .    The pressure in the exhaust pipe and the characteristics of the
                pressure drop in the sampling line shall be such that the probe
                collects a sample substantially equivalent to that which would bo
                obtained by isokinetic sampling.
     2.1.4 *.   If necessary, an expansion tank of compact design and of sufficient'
                capacity to damp the pulsations may be incorporated in the' sampling
                line as near to the probe as possible. A cooler may also be fitted.
                The design of the expansion tank and cooler shall, not unduly disturb
                the composition of the exhaust gas.                        • ' '
                                                                           * •
     2.1.5 .    A butterfly valve or other means of increasing the sampling pressure
                may be placed in the exhaust pipe at least three 3 D downstream from
                the sampling probe .                   '
     2.1.6. The connecting pipes between the probe , the cooling device , the expan-
              • sion tank ( if required) and the opacimeter shall be as short as
                possible while satisfying the pressure and temperature requirements
                described in Annex VII , items 3.8 and 3.9 . The pipe shall be inclined
                upvjards from the sampling point to the opacimeter , and sharp bends .
                where soot might accumulate shall be avoided* If not embodied in the
                opaciiieter , a "bypass valve shall be provided upstream..
 ---pagebreak---  A chock shall "bo carried out during the test to ensure that the
 requirements of Annex VI , item 3«8 ., concerning pressure and those
 of Annex VII , item 3»9 *» concerning the temperature in the measuring
 chamber are observed.
 Installation for tests under free acceleration
 The ratio of the cross--soctional area of the probe to that of the
 exhaust pipe shall not be less than 0,05 • The back pressure measured
 in the exhaust pipe at the intake of the probe shall not exceed 735 Pa*
 The probe shall be a tube with an open end facing fon/ards in the axis
 of the exhaust pipe , or of the extension pipe if one is required. It
 shall be situated in a section where the distribution of smoke is     .
 approximately uniform. To achieve this , the probe shall be placed as
 far downstream in the exhaust pipe as possible or , if necessary, in
 an extension pipe so that , if D is the diameter of the exhaust pipe
 at the outlet , the end of the probe is situated in a straight portion
 at least 6 D in length upstream of the sampling point and 3 D in length
 downstream. If an extension pipe is used , no air shall bo allowed to
 enter the joint .
The sampling system shall be such that at all engine speeds the pres­
 sure of the sample at the opacimeter is within the limits specified
 in Annex VII , item 3*8.2 . This may be checked by noting the sample
pressure at engine idling and maximum no* -load speeds . Depending on
 the characteristics of the opacimeter , control of sample pressure can
 be achieved by a fixed restriction or a butterfly valve in the exhaust
pipe or extension pipe . IJhichever method is used, the backpressure-
 measured in the exhaust pipe at the intake of the probe shdll not
 exceed 735 Pa*
The pipes connecting with the opacimeter shall be as short as possible .
The pipe shall be inclined upvjards from the sampling point to the
 opacimeter , and sharp bends where soot might accumulate shall be -
avoided . A bypass- valve nay be provided upstream of the opacimeter
 to isolate it from the exhaust-gas flow when no measurement is being
 made .
FULL-FLON OPACIMETER    .
The only general precautions to be obsorved . in steady- -speed and free-
 acceleration tests are the following :
'Joints in the connecting pipes between the exhaust pipe and the opaci-
meter shall not allow air to enter from outside .
The pipes corjaecCin^ with the opacimeter shall be as short as possible ,
 as in the case of sampling opacimeters . The pipe system shall be in­
 clined upwards from the exhaust pipe to the opacimeter, and sharp bends
 ---pagebreak---                                                      Annex VIII . page 3
where soot might accumulate shall be avoided* A "bypass valve may
be provided upstream of the opacimeter to isolate it from the
e:diaust~3as flow v ;hen no measurement is being made.
A cooling system Kay also be required upstream of the opacimeter.
 ---pagebreak---                                    . jfflNEX IX .
             EXAMPLE OP THE SMSOL OP TIE CORRECTED /iBSORPTICST COEbTICISMT
                              /\
                                     Minimum dimensions la » 5t6mm
                  1,30         }
         _
          t
                              \(
The above symbol shows "that the corrected absorption coefficient is 1,30 m–± »
 ---pagebreak---                                                ΛΝΝΞΧ Χ
                                                          Nane of administration
                ANNEX TO THE EEC TYPE APPROVAL CERTIFICATE CUT THE EMISSION OP
                              GASEOUS POLLUTANTS BY DIESEL ENGINES
( Article 4 ( 2 ) aM Article 10 of the Council Directive of 11 March 1974 on
the approximation of- the laws of the Member States relating to the type
approval of agriculturer tractors and machinery)
EEC Type Approval Number ( l )
Piegist.ered jluoher ( l ) . f ..
1*        Trade name or mark of the vehicle
2 . ,„ .Vehicle type
3 ,,      Manufacturer 's name .and .address •••••*••••••••»••••••••••••••«•••••••<
4 « 0 If applicable , . name aij4 address of manufacturer 's representative
5«        Emission levels
5,1 . At steady speeds
    l      1  1             !
          Engine speed          Nominal flow G      Limit absorption j   Measured absorption
             ( rpm)             ( litres/ second)    values ( m–1 )
                                                                       1
                                                                          values (o–*-)
                                                       ,               1
      1 .           ....
                                                                     1
             .
                                                                     j
   U                          ...........
                                                                               ......
   L. .                                           J                       .......
   U                 .... I                    ...J                    !
           ...    .                  .
                                                                     J
   I                       1[                                        1
                                                                      i                      I
( l ) Delete whichever does not apply.
 ---pagebreak---                                                                          iJIHEX X , page 2
           . • M» î , ' •            ' >' . s "' 4
 5.2 .        Under free accélération.
 5.2.1 . Measured absorption value                            ...m-1
5.2.2 . Corrected absorption value
6. .          Make and type of the opacimeter
7.            Engine submitted for approval tests on
8.            Technical service conducting approval tests
9.            Date 'of test report issued by that service ••••••••••••••••»••••.••»•••
 1Q .        JJufflber-of - teat -yeport issued by -that • service
 11 .        -Approval granted/refused ( l )
-1-2* • - Site . of approval mark on the vehicle
 13 » ,       Place
14 »    -     Date
 1>. v        Signature                                              4 ...».
 16 .         The following document^ bearing the approval number shown above , are
              annexed to . in communication .
              1 copy of Annex II duly completed together with the drawings and
              diagrams referred to "               '
         '                          photograph(s ) of the engine.
 ( l ) Delete whichever does not apply. \