Proposal for a Council Decision on the accession of the European Community to Regulation 108 of the United National Economic Commission for Europe concerning the approval for the production of retreated pneumatic tyres for motor vehicles and their trailers
Date: 2000-01-06
Institutions: European Commission
Subjects: UNO, approximation of laws, motor vehicle, pneumatic tyre, technical regulations

27.6.2000

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Official Journal of the European Communities

C 177 E/47

Proposal for a Council Decision on the accession of the European Community to Regulation 108
of the United National Economic Commission for Europe concerning the approval for the
production of retreaded pneumatic tyres for motor vehicles and their trailers

(2000/C 177 E/08)

(Text with EEA relevance)

COM(1999) 728 final (cid:151) 2000/0002(AVC)

(Submitted by the Commission on 6 January 2000)

THE COUNCIL OF THE EUROPEAN UNION,

Having regard to the Treaty establishing the European
Community,

Having regard to Council Decision 97/836/EC of 27 November
1997 with a view to accession by the European Community to
the Agreement of the United Nations Economic Commission
for Europe concerning the adoption of uniform technical
prescriptions
equipment and parts
which can be fitted to and/or be used on wheeled vehicles
and the conditions for reciprocal recognition of approvals
granted on the basis of these prescriptions (1) ((cid:145)revised 1958
Agreement(cid:146)), and in particular Article 3(3) and the second
indent of Article 4(2) thereof,

for wheeled vehicles,

Having regard to the proposal by the Commission,

Having regard to the assent of the European Parliament,

pneumatic tyres while ensuring a high level of safety and
environmental protection.

(2) Regulation 108 has been notified to the contracting parties
and entered into force in respect of all the contracting
parties who did not serve notice of their disagreement by
the date or dates specified in the regulation annexed to the
revised agreement of 1958.

(3) In order to enable the economic operators to take appro-
priate measures to abide in time by the provisions of Regu-
lation 108 so as not to disrupt the market in retreaded
pneumatic tyres, in particular by dates of entry into force
that could differ from one Member State to another, the
uniform application of
the
Community will be regulated later through a Community
directive. However, Regulation 108 will not be integrated in
the system for type-approval of motor vehicles and their
trailers,

regulation throughout

this

Whereas:

HAS DECIDED AS FOLLOWS:

(1) The aim of the uniform provisions of Regulation 108 of
the United Nations Economic Commission for Europe
concerning the approval for the production of retreaded
pneumatic tyres for motor vehicles and their trailers is to
abolish the technical barriers to trade in motor vehicles
between the contracting parties with regard to retreaded

Sole article

The European Community accedes to Regulation 108 of the
United Nations Economic Commission for Europe concerning
the approval for the production of retreaded pneumatic tyres
for motor vehicles and their trailers (2).

(1) OJ L 346, 17.12.1997, p. 78.

(2) Cf. document E/ECE/324-E/ECE/TRANS/505/Rev.2/Add.107.

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Official Journal of the European Communities

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REGULATION No 108

of the Economic Commission for Europe of the United Nations (UN/ECE)

UNIFORM PROVISIONS CONCERNING THE APPROVAL FOR THE PRODUCTION OF RETREADED
PNEUMATIC TYRES FOR MOTOR VEHICLES AND THEIR TRAILERS

(E/ECE/324-E/ECE/TRANS/505/RØv.2/Add.107)

1.

SCOPE

This Regulation applies to the production of retreaded tyres intended to be fitted to private (passenger) cars and their trailers used on
the road. It does not however apply to:

1.1.

1.2.

1.3.

1.4.

1.5.

1.6.

1.7.

1.8.

2.

2.1.

2.2.

2.2.1.

2.2.2.

2.2.3.

2.3.

2.3.1.

2.3.2.

2.3.3.

2.3.4.

2.4.

2.5.

2.6.

2.7.

2.8.

2.9.

Retreaded tyres for commercial vehicles and their trailers.

Retreaded tyres with a speed capability below 120 km/h or above 240 km/h.

Tyres for cycles and motorcycles.

Tyres originally produced without speed symbols and load indices

Tyres originally produced without type approval and without either an (cid:145)E(cid:146) or (cid:145)e(cid:146) mark.

Tyres designed for the equipment of cars produced prior to 1939.

Tyres designed exclusively for competition or off road use and marked accordingly.

Tyres designated as (cid:145)T type(cid:146) temporary use spares

DEFINITIONS (cid:151) See also figure in annex 8

For the purpose of this Regulation:

(cid:145)Range of retreaded pneumatic tyres(cid:146) means a range of retreaded pneumatic tyres as quoted in paragraph 4.1.4.

(cid:145)Structure(cid:146) of a pneumatic-tyre means the technical characteristics of the tyre’s carcass. The following structures are distinguished in
particular

(cid:145)Diagonal(cid:146) or (cid:145)Bias ply(cid:146) describes a pneumatic-tyre structure in which the ply cords extend to the beads and are laid at alternate angles
substantially less than 90(cid:176) to the centreline of the tread.

(cid:145)Bias belted(cid:146) describes a pneumatic-tyre structure of diagonal (bias ply) type in which the carcass is stabilised by a belt, comprising two
or more layers of substantially inextensible cord material laid at alternate angles close to those of the carcass.

(cid:145)Radial(cid:146) describes a pneumatic-tyre structure in which the ply cords extend to the beads and are laid substantially at 90(cid:176) to the
centreline of the tread, the carcass being stabilised by an essentially inextensible circumferential belt.

(cid:145)Category of use(cid:146)

Normal tyre is a tyre intended for normal road use only.

Snow tyre is a tyre whose tread pattern, or tread pattern and structure, is primarily designed to ensure, in mud and fresh or melting
snow, a performance better than that of a normal tyre. The tread pattern of a snow tyre generally consists of groove (rib) and solid
block elements more widely spaced than on a normal tyre.

Temporary use spare tyre is a tyre different from that intended to be fitted to any vehicle for normal driving conditions but intended
only for temporary use under restricted driving conditions.

(cid:145)T(cid:146) type temporary use spare tyre is a type of temporary use spare tyre designed for use at inflation pressures higher than those
established for standard and reinforced tyres.

(cid:145)Bead(cid:146) means the part of a pneumatic-tyre which is of such shape and structure as to fit the rim and hold the tyre on it.

(cid:145)Cord(cid:146) means the strands forming the fabric of the plies in the pneumatic-tyre.

(cid:145)Ply(cid:146) means a layer of (cid:145)rubber(cid:146) coated parallel cords.

(cid:145)Belt(cid:146) applies to a radial ply or bias belted tyre and means a layer or layers of material or materials underneath the tread,
substantially in the direction of the centre line of the tread to restrict the carcass in a circumferential direction.

laid

(cid:145)Breaker(cid:146) applies to a diagonal ply tyre and means an intermediate ply between the carcass and tread.

(cid:145)Chafer(cid:146) means material in the bead area to protect the carcass against chafing or abrasion by the wheel rim.

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2.10.

2.11.

2.12.

2.13.

2.14.

2.15.

2.16.

2.17.

2.18.

2.19.

2.20.

2.21.

2.21.1.

2.21.2.

2.21.3.

(cid:145)Carcass(cid:146) means that structural part of a pneumatic-tyre other than the tread and outermost (cid:145)rubber(cid:146) of the sidewalls which, when
inflated, supports the load.

(cid:145)Tread(cid:146) means that part of a pneumatic-tyre which is designed to come into contact with the ground, protects the carcass against
mechanical damage and contributes to ground adhesion.

(cid:145)Sidewall(cid:146) means the part of a pneumatic tyre between the tread and the area designed to be covered by the rim flange.

(cid:145)Lower area of tyre(cid:146) means the area included between the line of maximum section width of the tyre and the area designed to be
covered by the edge of the rim.

(cid:145)Tread groove(cid:146) means the space between the adjacent ribs or blocks in the tread pattern.

(cid:145)Principal grooves(cid:146) means the wide grooves situated in the central zone of the tread, which cover approximately three-quarters of the
breadth of the tread.

(cid:145)Section width(cid:146) means the linear distance between the outside of the sidewalls of an inflated pneumatic-tyre, when fitted to the specified
measuring rim, but excluding elevations due to labelling (marking), decoration or protective bands or ribs.

(cid:145)Overall width(cid:146) means the linear distance between the outside of the sidewalls of an inflated pneumatic-tyre, when fitted to the specified
measuring rim, and including labelling (marking) decoration or protective bands or ribs.

(cid:145)Section height(cid:146) means a distance equal to half the difference between the outer diameter of the tyre and the nominal rim diameter.

(cid:145)Nominal aspect ratio(cid:146) means one hundred times the number obtained by dividing the number expressing the nominal section height by
the number expressing the nominal section width, both dimensions being in the same units.

(cid:145)Outer diameter(cid:146) means the overall diameter of an inflated, newly retreaded tyre.

(cid:145)Tyre size designation(cid:146) means a designation showing:

The nominal section width. This must be expressed in millimetres, except in cases of tyres for which the size designation is shown in
the first column of the tables in annex 5 to this Regulation.

The nominal aspect ratio except in cases of tyres for which the size designation is shown in the first column of the tables in annex 5 to
this Regulation.

A conventional number (cid:145)d(cid:146) (the (cid:145)d(cid:146) symbol) denoting the nominal rim diameter of the rim and corresponding to its diameter expressed
either by codes (numbers below 100) or in millimetres (numbers above 100). Numbers corresponding to both types of measurements
may be used in the designation.

2.21.3.1.

The values of the (cid:145)d(cid:146) symbols expressed in millimetres are shown below:

Nominal Rim Diameter Code (cid:151) (cid:145)d(cid:146)

Value of the (cid:145)d(cid:146) symbol expressed in mm

8
9
10
11
12
13
14

15
16
17
18
19

20
21

203
229
254
279
305
330
356

381
406
432
457
483

508
533

2.22.

2.23.

2.24.

(cid:145)Nominal rim diameter (d)(cid:146) means the diameter of the rim on which a tyre is designed to be mounted.

(cid:145)Rim(cid:146) means the support, either for a tyre-and-tube assembly or for a tubeless tyre, on which the tyre beads are seated.

(cid:145)Measuring rim(cid:146) means the rim specified as a (cid:145)measuring rim width(cid:146), or (cid:145)design rim width(cid:146) for a particular tyre size designation in any
edition of one or more of the International Tyre Standards.

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2.25.

(cid:145)Test rim(cid:146) means any rim specified as approved or recommended or permitted in one of the International Tyre Standards for a tyre of
that size designation and type.

2.26.

(cid:145)International Tyre Standard(cid:146) means any one of the following standard documents:

(a) The European Tyre and Rim Technical Organisation (ETRTO) (1): (cid:145)Standards Manual(cid:146)

(b) The European Tyre and Rim Technical Organisation (ETRTO) Design Information (cid:151) (cid:145)obsolete data(cid:146)

2.27.

2.28.

2.29.

2.30.

2.31.

2.32.

2.33.

(c) The Tire and Rim Association Inc. (TRA) (2): (cid:145)Year Book(cid:146)

(d) The Japan Automobile Tire Manufacturers Association (JATMA) (3): (cid:145)Year Book(cid:146)

(e) The Tyre and Rim Association of Australia (TRAA) (4): (cid:145)Standards Manual(cid:146)

(f) The Assiciacao Brasileira de Pneus e Aros (ABPA) (5): (cid:145)Manual de Normal Technicas(cid:146)

(g) The Scandinavian Tyre and Rim Organisation (STRO) (6): (cid:145)Data Book(cid:146)

(cid:145)Chunking(cid:146) means the breaking away of pieces of rubber from the tread.

(cid:145)Cord separation(cid:146) means the parting of the cords from their rubber coating.

(cid:145)Ply separation(cid:146) means the parting of adjacent plies.

(cid:145)Tread separation(cid:146) means the pulling away of the tread from the carcass.

(cid:145)Tread wear indicators(cid:146) means the projections within the tread grooves designed to give a visual indication of the degree of wear of the
tread.

(cid:145)Service description(cid:146) means the specific combination of the load index and speed symbol of the tyre.

(cid:145)Load index(cid:146) means a numerical code which indicates the maximum load the tyre can support.

The list of load indices and the corresponding loads are shown in annex 4 to this Regulation.

The tyre standards can be obtained from the following addresses:

(1) ETRTO, 32, Av. Brugmann-Bte 2, B-1060 Bruselas.

(2) TRA, 175 Montrose West Avenue, Suite 150, Copley, Ohio, 44321 Estados Unidos de AmØrica.

(3) JATMA, 9th Floor, Toranomon Building n(cid:176) 1-12, 1-Chome Toranomon Minato-ku, Tokio 105, Jap(cid:243)n.

(4) TRAA, Suite 1, Hawthorn House, 795 Glenferrie Road, Hawthorn, Victoria, 3122 Australia.

(5) ABPA, Avenida Paulista 244-12(cid:176) Andar, CEP, 01310 Sao Paulo, SP Brasil.

(6) STRO, ˜lggatan 48 A, Nb, S-216 15 Malm(cid:246).

2.34.

(cid:145)Speed symbol(cid:146) means:

2.34.1.

An alphabetical symbol indicating the speed at which the tyre can carry the load given by the associated load index.

2.34.2.

The speed symbol and corresponding speeds are as shown in the table below:

Speed symbol

Corresponding speed (km/h)

L
M
N
P
Q
R
S
T
U
H
V

120
130
140
150
160
170
180
190
200
210
240

2.35.

2.35.1.

(cid:145)Maximum load rating(cid:146) means the maximum mass which the tyre is rated to support.

For speeds not exceeding 210 km/h, the maximum load rating shall not exceed the value corresponding to the load index for the tyre.

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2.35.2.

For speeds higher than 210 km/h but not exceeding 240 km/h, (tyres with speed symbol (cid:145)V(cid:146)), the maximum load rating shall not
exceed the percentage of the value corresponding to the load index of the tyre, indicated in the table below against the speed capability
of the vehicle to which the tyre is to be fitted:

Maximum Speed (km/h)

Load per cent

215
220
225
230
235
240

98,5
97,0
95,5
94,0
92,5
91,0

For intermediate maximum speeds a linear interpolation of the maximum load rating is permissible.

(cid:145)Retreading production unit(cid:146) means a site or group of localised sites where finished retread tyres are produced.

(cid:145)Retreading(cid:146) means the generic term for reconditioning a used tyre by replacing the worn tread with new material. It may also include
renovation of the outermost sidewall surface. It covers the following process methods:

(cid:145)Top-capping(cid:146) (cid:151) replacement of the tread.

(cid:145)Re-capping(cid:146) (cid:151) replacement of the tread and with the new material extending over part of the sidewall.

(cid:145)Bead to bead(cid:146) (cid:151) replacement of the tread and renovation of the sidewall

including all or part of the lower area of the tyre.

(cid:145)Casing(cid:146) is the worn tyre comprising carcass and remaining tread and sidewall material.

(cid:145)Buffing(cid:146) is the process of removing old material from the casing to prepare the surface for the new material

(cid:145)Repair(cid:146) is the remedial work carried out to damaged casings within recognised limits.

(cid:145)Tread material(cid:146) is material in a condition suitable for replacing the worn tread. It can be in several forms for example:

(cid:145)Camel-back(cid:146) (cid:151) pre-cut lengths of material which have been extruded to give the required cross section profile and subsequently fitted
cold to the prepared casing. The new material must be cured.

(cid:145)Strip-wound(cid:146) (cid:151) a ribbon of tread material which is directly extruded and wound on to the prepared casing and built up to the
required cross sectional contour. The new material must be cured.

(cid:145)Direct extrusion(cid:146) (cid:151) tread material extruded to give the required cross sectional profile and directly extruded on to the prepared casing.
The new material must be cured.

(cid:145)Pre-cured(cid:146) (cid:151) a previously formed and cured tread applied directly to the prepared casing. The new material must be bonded to the
casing.

(cid:145)Sidewall veneer(cid:146) is material used to cover the sidewalls of the casing thereby allowing the required markings to be formed.

(cid:145)Cushion gum(cid:146) is material used as a bonding layer between new tread and casing and for repairing minor damage.

(cid:145)Cement(cid:146) is an adhesive solution to hold new materials in place prior to the curing process.

(cid:145)Cure(cid:146) is the term used to describe the change in physical properties of the new material which is brought about usually by the
application of heat and pressure for a set period of time under controlled conditions.

(cid:145)Radial run out(cid:146) means the variation in radius of the tyre measured around the outer circumference of the tread surface.

(cid:145)Imbalance(cid:146) means a measurement of the variation in distribution of mass around the centre axis of the tyre. It can be measured as
either (cid:145)Static(cid:146) or (cid:145)Dynamic(cid:146) imbalance.

MARKINGS

An example of the arrangement of retreaded tyre markings is shown in annex 3 to this Regulation.

Retreaded tyres shall display on both sidewalls in the case of symmetrical tyres and at least on the outer sidewall in the case of
asymmetrical tyres:

The brand name or trade mark.

The tyre-size designation as defined in paragraph 2.21.

2.36.

2.37.

2.37.1.

2.37.2.

2.37.3.

2.38.

2.39.

2.40.

2.41.

2.41.1.

2.41.2.

2.41.3.

2.41.4.

2.42.

2.43.

2.44.

2.45.

2.46.

2.47.

3.

3.1.

3.2.

3.2.1.

3.2.2.

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3.2.3.

An indication of the structure as follows:

3.2.3.1.

On diagonal (bias-ply) tyres; no indication, or the letter (cid:145)D(cid:146) placed in front of the rim diameter marking.

3.2.3.2.

On radial-ply tyres; the letter (cid:145)R(cid:146) placed in front of the rim diameter marking and optionally the word (cid:145)RADIAL(cid:146).

3.2.3.3.

On bias belted tyres; the letter (cid:145)B(cid:146) placed in front of the rim diameter marking and in addition the words (cid:145)BIAS-BELTED(cid:146).

3.2.4.

The service description comprising:

3.2.4.1.

An indication of the tyre’s nominal load capacity in the form of the load index prescribed in paragraph 2.33.

3.2.4.2.

An indication of the tyre’s nominal speed capability in the form of the symbol prescribed in paragraph 2.34.

3.2.5.

3.2.6.

3.2.7.

The word (cid:145)TUBELESS(cid:146) if the tyre is designed for use without an inner tube.

The inscription M+S or MS or M.S. or M & S in the case of a snow tyre.

The date of retreading as follows:

3.2.7.1.

Up to 31 December 1999; either as prescribed in paragraph 3.2.7.2.

Or in the form of a group of three digits, the first two showing the week number and the third, the year of the decade of manufacture.
The date code can cover a period of production from the week indicated by the week number up to and including the week number
plus three. For example, the marking (cid:145)253(cid:146) could indicate a tyre which was retreaded in weeks 25, 26, 27 or 28 of the year 1953.

The date code may be marked on one sidewall only.

3.2.7.2.

As from 1 January 2000; in the form of a group of four digits, first two showing the week number and the second two showing the
year in which the tyre was retreaded. The date code can cover a period of production from the week indicated by the week number up
to and including the week number plus three. For example, the marking (cid:145)2503(cid:146) could indicate a tyre which was retreaded in weeks 25,
26, 27 or 28 of the year 2003.

The date code may be marked on one sidewall only.

3.2.8.

The term (cid:145)RETREAD(cid:146) or (cid:145)REMOULD(cid:146) (after 1 January 1999 only the word (cid:145)RETREAD(cid:146) shall be used). At the request of the retreader, the
same term in other languages may also be added.

3.3.

3.4.

3.5.

3.6.

Prior to approval tyres shall exhibit a free space sufficiently large to accommodate an approval mark as referred to in paragraph 5.8
and as shown in annex 2 to this Regulation.

Following approval, the markings referred to in paragraph 5.8 and as shown in annex 2 to this Regulation shall be affixed in the free
space referred to in paragraph 3.3. This marking may be affixed to one sidewall only.

The markings referred to in paragraph 3.2 and the approval mark prescribed in paragraphs 3.4 and 5.8 shall be clearly legible and shall
be moulded on to or into the tyre or shall be permanently marked on to the tyre.

As far as any of the original manufacturer’s specifications are still legible after the tyres have been retreaded, they shall be regarded as
specifications of the retreader for the retreaded tyre. If these original specifications do not apply after retreading they shall be
completely removed.

The original (cid:145)E(cid:146) or (cid:145)e(cid:146) approval mark and number shall be removed.

4.

APPLICATION FOR APPROVAL

The following procedures are applicable to the approval of a tyre retreading production unit.

The application for approval of a retreading production unit shall be submitted by the holder of the trade name or trade mark to be
applied to the tyre or by his duly accredited, representative. It shall specify:

An outline of the structure of the company producing the retreaded tyres.

A brief description of the quality management system, which ensures the effective control of the tyre retreading procedures to meet the
requirements of this Regulation.

The trade names or marks to be applied to the retreaded tyres produced.

The following information in relation to the range of tyres to be retreaded:

4.1.

4.1.1.

4.1.2.

4.1.3.

4.1.4.

4.1.4.1.

The range of tyre sizes;

4.1.4.2.

The structure of tyres (diagonal or bias ply, bias-belted or radial);

4.1.4.3.

The category of use of tyres (normal or snow tyres etc.);

4.1.4.4.

The system of retreading and the method of application of the new materials to be used, as defined in paragraphs 2.37 and 2.41;

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4.1.4.5.

The maximum speed symbol of the tyres to be retreaded;

4.1.4.6.

The maximum load index of the tyres to be retreaded.

4.1.4.7.

The nominated International Tyre Standard to which the range of tyres conform.

5.

5.1.

5.2.

5.3.

5.4.

APPROVAL

To retread tyres requires the approval of the retreading production unit by the responsible authorities in accordance with the
requirements of this Regulation.

The responsible authority takes the necessary measures as described in this Regulation in order to ensure that the tyres retreaded in the
respective production unit will meet with the requirements stated in this Regulation. The retread production unit shall be fully
responsible for ensuring that the retreaded tyres will meet the requirements of this Regulation and that they will perform adequately
in normal use.

In addition to the normal requirements for the initial assessment of the tyre retreading production unit, the approval authority shall be
satisfied that the procedures, operation, instructions and specification documentation provided by material suppliers are in a language
readily understood by the tyre retreading production unit operatives.

The approval authority shall ensure that the procedures and operations documentation for each production unit contains specifications,
appropriate to the repair materials and processes used, of the limits of repairable damage or penetrations to the tyre carcass, whether
such damage is existing or is caused during the processes of preparation for retreading.

Before granting approval the authority must be satisfied that retreaded tyres conform to this Regulation and that the tests prescribed in
paragraphs 6.7 and 6.8 have been successfully carried out on at least 5 and not necessarily more than 20 samples of retreaded tyres
representative of the range of tyres produced by the retreading production unit.

5.5.

In the case of each failure being recorded during tests, two further samples of the same specification tyre shall be tested.

If either or both of these second two samples fail, then a final submission of two samples shall be tested. If either or both of the final
two samples fail, then the application for approval of the retreading production unit shall be rejected.

If all the requirements of this Regulation are met, then approval shall be granted and an approval number shall be assigned to each
retreading production unit approved. The first two digits of this number shall indicate the series of amendments incorporating the most
recent major technical amendments made to the Regulation at the time of issue of the approval. The approval number shall be
preceded by (cid:145)XXXR(cid:146) signifying that the approval applies to a tyre retreaded as prescribed in this Regulation. The same authority shall
not assign the same number to another production unit covered by this Regulation.

Notice of approval or of extension, refusal or withdrawal of approval or of production definitely discontinued pursuant to this
Regulation shall be communicated to the Parties to the 1958 Agreement applying this Regulation, by means of a form conforming
to the model in annex 1 to this Regulation.

There shall be affixed conspicuously to every retreaded tyre conforming to this Regulation, in the space referred to in paragraph 3.3
and in addition to the markings prescribed in paragraph 3.2, an international approval mark consisting of:

A circle surrounding the letter (cid:145)E(cid:146) followed by the distinguishing number of the country which granted approval (1); and

An approval number as described in paragraph 5.6.

Annex 2 to this Regulation gives an example of the arrangements of the approval mark.

REQUIREMENTS

Tyres shall not be accepted for retreading unless they have been type approved and bear either an (cid:145)E(cid:146) or (cid:145)e(cid:146) mark, except that this
requirement shall not be mandatory until 1 January 2000 at the latest.

Tyres which have been previously retreaded shall not be accepted for further retreading.

The age of the casing accepted for retreading shall not exceed 7 years, based on the digits showing the year of manufacture of the
original tyre; e.g. the tyre marked with a date code (cid:145)253(cid:146) can be accepted for retreading till the end of the year 2000.

Conditions before retreading:

Tyres shall be clean and dry before inspection.

5.6.

5.7.

5.8.

5.8.1.

5.8.2.

5.9.

6.

6.1.

6.2.

6.3.

6.4.

6.4.1.

___________
(1) 1 for Germany, 2 for France, 3 for Italy, 4 for the Netherlands, 5 for Sweden, 6 for Belgium, 7 for Hungary, 8 for the Czech Republic, 9 for Spain, 10 for Yugoslavia, 11
for the United Kingdom, 12 for Austria, 13 for Luxembourg, 14 for Switzerland, 15 (vacant), 16 for Norway, 17 for Finland, 18 for Denmark, 19 for Romania, 20 for
Poland, 21 for Portugal, 22 for The Russain Federation, 23 for Greece, 24 for Ireland, 25 for Croatia, 26 for Slovenia, 27 for Slovakia, 28 for Belarus, 29 for Estonia, 30
(vacant), 31 for Bosnia and Herzegovina, 32-36 (vacant), 37 for Turkey, 38-39 (vacant), 40 for the former Yugoslav Republic of Macedonia, 41 (vacant), 42 for the
European Community (Approvals are granted by its Member States using their respective ECE symbol) and 43 for Japan. Subsequent numbers shall be assigned to other
countries in the chronological order in which they ratify or accede to the Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles,
Equipment and Parts which can be fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these
Prescriptions, and the numbers thus assigned shall be communicated by the Secretary-General of the United Nations to the Contracting Parties to the Agreement.

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6.4.2.

6.4.3.

6.4.4.

Before buffing, each tyre shall be thoroughly examined both internally and externally to ensure its suitability for retreading.

Tyres where damage is visible which has resulted from overload or underinflation shall not be retreaded.

Tyres showing any of the following damage shall not be accepted for retreading:

6.4.4.1.

(a) extensive cracking extending through to the carcass;

(b) carcass penetrations or damage to casings above (cid:145)H(cid:146) speed symbol except where these casings are to be down rated to a lower

speed symbol;

(c) previous repairs to damage outside specified injury limits (cid:151) see paragraph 5.3;

(d) carcass break up;

(e) appreciable oil or chemical attack;

(f) multiple damage too close together;

(g) damaged or broken bead;

(h) non repairable deterioration of or damage to inner liner;

(i) bead damage other than minor (cid:145)rubber(cid:146) only damage;

(j)

exposed cords due to tread wear or sidewall scuffing;

(k) non-repairable tread or sidewall material separation from the carcass;

(l)

structural damage in the area of the sidewall.

6.4.5.

6.5.

6.5.1.

6.5.2.

6.5.3.

6.5.4.

6.5.5.

6.5.6.

6.5.7.

Radial ply tyre carcasses with separation in the belt, other than slight belt edge looseness, shall not be accepted for retreading.

Preparation:

After buffing, and before the application of new material, each tyre shall be thoroughly re-examined at least externally to ensure its
continued suitability for retreading.

The entire surface to which new material is to be applied shall have been prepared without overheating. The buffed surface texture shall
not contain deep buffing lacerations or loose material.

Where precured material is to be used the contours of the prepared area shall meet the requirements of the material manufacturer.

Loose cord ends are not permissible.

Casing cords shall not be damaged during the preparation process.

Buffing damage to the belt of radial tyres shall be limited to localised damage to the outermost layer only.

Buffing damage limits for diagonal ply tyres shall be as follows:

6.5.7.1.

For two ply construction, there shall not be any damage to the carcass except for slight localised buffing damage to the casing joint.

6.5.7.2.

For two ply plus breaker construction of tubeless type tyres, there shall not be any damage to the carcass or breaker.

6.5.7.3.

For two ply plus breaker construction of tube type tyres, localised damage to the breaker is permissible.

6.5.7.4.

For four ply, or more, construction of tubeless type tyres, there shall not be any damage to the carcass or breaker.

6.5.7.5.

For four ply, or more, construction of tube type tyres, damage shall be limited to the outermost ply in the crown area only.

6.5.8.

6.6.

6.6.1.

Exposed steel parts shall be treated as soon as possible with appropriate material as defined by the manufacturer of that appropriate
material.

Retreading:

The retreader must ensure that either the manufacturer or the supplier of repair materials, including patches, is responsible for the
following:

(a) defining method(s) of application and storage, if requested by the retreader, in the national language of the country in which the

materials are to be used;

(b) defining limits of damage for which the materials are designed, if requested by the retreader, in the national language of the country

in which the materials are to be used;

(c) ensuring that reinforced patches for tyres, if correctly applied in carcass repairs, are suitable for the purpose;

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C 177 E/55

(d) ensuring that the patches are capable of withstanding twice the maximum inflation pressure as given by the tyre manufacturer;

(e) ensuring the suitability of any other repair materials for the service intended.

The retreader shall be responsible for the correct application of the repair material and for ensuring that the repair is free from any
defects which may affect the satisfactory service life of the tyre.

The retreader shall ensure that either the manufacturer or the supplier of tread and sidewall material issues specifications concerning
the conditions of storage and use of the material in order to guarantee the material’s qualities. If requested by the retreader, this
information shall be in the national language of the country in which the materials are to be used.

The retreader must ensure that the repair material and/or compound is documented in a manufacturer’s or supplier’s certificate. The
material compound must be suitable for the intended use of the tyre.

The processed tyre shall be cured as soon as possible after the completion of all repairs and building-up operations and at the latest
according to the material manufacturer’s specifications.

The tyre shall be cured for the length of time and at the temperature and pressure, appropriate to, and specified for, the materials and
processing equipment used.

The dimensions of the mould shall be appropriate to the thickness of the new material and the size of the buffed casing. Radial ply
tyres, when moulded, shall be cured in radial or radially divided moulds only.

The thickness of original material after buffing and the average thickness of any new material under the tread pattern after retreading
shall be as given in paragraphs 6.6.8.1 and 6.6.8.2. The thickness of material at any point either across the breadth of he tread or
around the circumference of the tyre shall be controlled in such a way that the provisions of paragraphs 6.7.5 and 6.7.6 are met.

6.6.2.

6.6.3.

6.6.4.

6.6.5.

6.6.6.

6.6.7.

6.6.8.

6.6.8.1.

For radial ply and bias belted tyres (mm)

1.5 £ (A+B) £ 5 (minimum 1.5 mm; maximum 5.0 mm)

A ‡ 1 (minimum 1.0 mm)

B ‡ 0.5 (minimum 0.5 mm)

P.D. = Pattern depth

X

= Buff line

A = Average thickness of new material under pattern

B

= Minimum thickness of original material above belt after buffing

6.6.8.2.

For diagonal (Bias-ply) tyres.

The thickness of original material above the breaker shall be ‡ 0.00 mm.

The average thickness of new material above the buffed casing line shall be ‡ 2.00 mm.

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The combined thickness of original and new material beneath the base of the grooves of the tread pattern shall be ‡ 2.00 and
£ 5.00 mm.

The service description of a retreaded tyre shall not show either a higher speed symbol or a higher load index than that of the original,
first life, tyre.

The minimum speed capability of a retreaded tyre shall be 120 km/h ((cid:145)L(cid:146) speed symbol) and the maximum shall be 240 km/h ((cid:145)V(cid:146) speed
symbol).

6.6.9.

6.6.10.

6.6.11.

Tread wear indicators shall be incorporated as follows:

6.6.11.1.

6.6.11.2.

6.6.11.3.

6.6.11.4.

6.7.

6.7.1.

6.7.2.

6.7.3.

6.7.4.

6.7.5.

6.7.6.

6.7.7.

6.8.

6.8.1.

6.8.2.

6.8.3.

7.

7.1.

The retreaded pneumatic tyre shall include not less than six transverse rows of wear indicators, approximately equi-spaced and situated
in the principal grooves of the tread. The tread wear indicators shall be such that they cannot be confused with the material ridges
between the ribs or blocks of the tread.

However, in the case of tyres designed for mounting on rims of a nominal diameter of code 12 or less, four rows of tread wear
indicators are permissible.

The tread wear indicators shall provide a means of indicating, with a tolerance of + 0.60/(cid:150) 0.00 mm, when the tread grooves are no
longer more than 1.6 mm deep.

The height of the tread wear indicators shall be determined by measuring the difference between the depth from the tread surface to
the top of the tread wear indicators and the base of the tread grooves, close to the slope at the base of the tread wear indicators.

Inspection:

After curing, whilst a degree of heat is retained in a tyre, each retreaded tyre shall be examined to ensure that it is free apparent defects.
During or after retreading the tyre must inflated to at least 1.5 bar for examination. Where there is any apparent defect in the profile of
the tyre (e.g. blister, depression, etc.) the tyre shall be specifically examined to determine the cause of this defect.

Before, during or after retreading the tyre shall be checked at least once for the integrity of its structure by means of a suitable
inspection method.

For the purposes of quality control a number of retreaded tyres shall be subjected to destructive and/or non-destructive testing
examination. The quantity of tyres checked and the results shall be recorded.

After retreading, the dimensions of the retreaded tyre, when measured in accordance with annex 6 to this Regulation, must conform
either to dimensions calculated according to the procedures in paragraph 7 or to annex 5 to this Regulation.

The radial run out of the retreaded tyre shall not exceed 1.5 mm (+ 0.4 mm measuring tolerance).

The maximum static imbalance of the retreaded tyre, measured at the rim diameter, shall not exceed 1.5 per cent of the mass of the
tyre.

Tread wear indicators shall conform to the requirements of paragraph 6.6.11.

Performance test:

Tyres retreaded to comply with this Regulation shall be capable of meeting the load/speed endurance test as specified in annex 7 to this
Regulation.

A retreaded tyre which after undergoing the load/speed endurance test does not exhibit any tread separation, ply separation, cord
separation, chunking or broken cords shall be deemed to have passed the test.

The outer diameter of the tyre, measured six hours after the load/speed endurance test, must not differ by more than – 3.5 per cent
from the outer diameter as measured before the test.

SPECIFICATIONS

Tyres retreaded to comply with this Regulation shall conform to the following dimensions:

7.1.1.

Section width:

7.1.1.1.

The section width shall be calculated by the following formula:

S (cid:136) S1 (cid:135) K (cid:133)A (cid:151) A1(cid:134)

where:

S:

is the actual section width in millimetres as measured on the test rim;

S1:

is the value of the (cid:145)Design Section Width(cid:146), referred to the measuring rim, as quoted in the International Tyre Standard specified by
the retreader for the tyre size in question;

A:

is the width of the test rim in millimetres;

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A1:

is the width in millimetres of the measuring rim as quoted in the International Tyre Standard specified by the retreader for the
tyre size in question.

K:

is a factor and shall be taken to equal 0.4.

7.1.2.

Outer diameter:

7.1.2.1.

The theoretical outer diameter of a retreaded tyre shall be calculated by the following formula:

where:

D:

is the theoretical outer diameter in millimetres;

D (cid:136) d (cid:135) 2H

d:

is the conventional number defined in paragraph 2.21.3, in millimetres;

H:

is nominal section height in millimetres and is equal to Sn multiplied by 0.01 Ra

where:

Sn:

is the nominal section width in millimetres;

Ra:

is the nominal aspect ratio

All of the above symbols are as quoted in the tyre size designation as shown on the sidewall of the tyre in conformity with the
requirements of paragraph 3.2.2 and as defined in paragraph 2.21.

7.1.2.2.

However, for tyres whose designation is given in the first column of the tables in annex 5 to ECE Regulation No 30, the outer diameter
shall be that given in those tables.

7.1.3.

Method of measuring retreaded tyres:

7.1.3.1.

The dimensions of retreaded tyres shall be measured in accordance with the procedures given in annex 6 to this Regulation.

7.1.4.

Section width specifications:

7.1.4.1.

The actual overall width may be less than the section width or widths determined in paragraph 7.1.

7.1.4.2.

The actual overall width may also exceed the value or values determined in paragraph 7.1 by:

7.1.4.2.1.

4 per cent in the case of radial ply tyres and

7.1.4.2.2.

6 per cent in the case of diagonal (bias-ply) or bias belted tyres.

7.1.4.2.3.

in addition, if the tyre has a special protective band, the width may be greater by up to 8 mm above the tolerances given by
paragraphs 7.1.4.2.1 and 7.1.4.2.2.

7.1.5.

Outer diameter specifications:

7.1.5.1.

The actual outer diameter of a retreaded tyre must not be outside the values of Dmin and Dmax obtained by the following formulae:

Dmin (cid:136) d (cid:135) (cid:133)2H (cid:2) a(cid:134)

Dmax (cid:136) d (cid:135) (cid:133)2H (cid:2) b(cid:134)

where:

For sizes nor given in the tables in annex 5 to this Regulation, (cid:145)H(cid:146) and (cid:145)d(cid:146) are as defined in paragraph 7.1.2.1.

7.1.5.1.2.

For sizes mentioned in paragraph 7.1.2.2 above:

H (cid:136) 0:5 (cid:133)D (cid:151) d(cid:134)

where (cid:145)D(cid:146) is the outer diameter and (cid:145)d(cid:146) the Nominal rim diameter quoted in the above-mentioned tables for the size in question

7.1.5.1.3.

The coefficient (cid:145)a(cid:146) = 0.97

7.1.5.1.4.

The coefficient (cid:145)b(cid:146) is:

For normal use tyres 1.04

1.04

1.08

Radial tyres

Diagonal (bias-ply) and bias belted tyres

C 177 E/58

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27.6.2000

7.1.5.2.

For snow tyres the maximum outer diameter (Dmax) calculated in paragraph 7.1.5.1 may be exceeded by not more than 1 per cent.

8.

8.1.

8.1.1.

8.1.2.

8.2.

MODIFICATIONS TO THE APPROVAL

Every modification concerning a retreading production unit amending any of the information given by the retreading production unit
in the Application for Approval, see paragraph 4, shall be notified to the approval authority which approved the retreading production
unit. That authority may then either:

Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the retreading production
unit still meets the requirements; or

Require a further investigation of the approval.

Confirmation of, or refusal of, approval, specifying the modifications, shall be communicated by the procedure specified in paragraph
5.7 to the Parties to the Agreement which apply this Regulation.

9.

CONFORMITY OF PRODUCTION

9.1.

9.2.

9.2.1.

9.3.

9.4.

The conformity of production procedures shall comply with those set out in the Agreement, Appendix 2 (E/ECE/t24-E/ECE/TRANS/
505/Rev.2), with the following requirements.

The retreading production unit approved according to this Regulation shall conform to the requirements set out in paragraph 6.

The holder of the approval shall ensure that, during each year of production, and spread throughout that year, at least the following
number of tyres, representative of the range being produced. Is checked and tested as prescribed in this Regulation:

0.01 per cent of the total annual production but in any case not less than 5 and not necessarily more than 20.

If the requirements of paragraph 9.2 are carried out by or under he control of the approval authority, the results may be used as part
of, or instead of, those prescribed in paragraph 9.4.

The authority which has approved the retreading production unit may at any time verify the conformity control methods applied in
each production facility.

For each production facility the type approval authority shall take samples at random during each and every production year and at
least the following number of tyres, representative of the range being produced, shall be checked and tested as prescribed in this
Regulation:

9.4.1.

0.01 per cent of the total annual production but in any case not less than 5 and not necessarily more than 20.

9.5.

10.

10.1.

10.2.

The tests and checks of paragraph 9.4 may replace those requiredin paragraph 9.2.

PENALTIES FOR NON-CONFORMITY OF PRODUCTION

The approval granted in respect of a retreading production unit pursuant to this Regulation may be withdrawn if the requirements of
paragraph 9 are not complied with or if the retreading production unit or the retreaded tyres produced by that retreading production
unit have failed to meet the requirements prescribed in that paragraph.

If a Party to the Agreement which applies this Regulation withdraws an approval it has previously granted, it shall forthwith so notify
the other Contracting Parties to the 1958 Agreement applying this Regulation, by means of a communication form conforming to the
model shown in annex 1 to this Regulation.

11.

PRODUCTION DEFINITELY DISCONTINUED

The authority which granted the approval of the retreading production unit shall be informed if operations and manufacture of
retreaded tyres approved within the scope of this Regulation cease. On receipt of this information the authority shall communicate this
information to the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to
the model shown in annex 1 to this Regulation.

12.

12.1.

12.2.

NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, OF TEST LABORA-
TORIES, AND OF ADMINISTRATIVE DEPARTMENTS

The Parties to the 1958 Agreement which apply this Regulation shall communicate to the United Nations Secretariat the names and
addresses of the technical services responsible for conducting approval tests and, where applicable, of the approved test laboratories and
of the administrative departments which grant approval and to which forms certifying approval or refusal or withdrawal of approval,
issued in other countries, are to be sent.

The Parties to the 1958 Agreement which apply this Regulation may use laboratories of tyre manufacturers or retreading production
units and may designate, as approved test laboratories, those which are situated either in the territory of that Party or in the territory of
another Party to the 1958 Agreement subject to a preliminary acceptance of this procedure by the competent administrative
department of the latter.

12.3.

Where a Party to the 1958 Agreement applies paragraph 12.2, it may, if it desires, be represented at the tests.

27.6.2000

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Official Journal of the European Communities

C 177 E/59

ANNEX 1

COMMUNICATION

(maximum format: A4 (210 (cid:215) 297 mm))

issued by: Name of administration:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

concerning: (2)-9

APPROVAL GRANTED

APPROVAL EXTENDED

APPROVAL REFUSED

APPROVAL WITHDRAWN

PRODUCTION DEFINITELY DISCONTINUED

of a retreading production unit pursuant to Regulation No 108.

Approval No: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Extension No:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Retreader’s name or trade mark:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Name and address of retreading production unit:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. If applicable, name and address of retreader’s representative:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. Summarised description as in paragraphs 4.1.3 and 4.1.4 of this Regulation:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5. Technical service and, where applicable, test laboratory approved for purposes of approval or verification of conformity:

. . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. Date of report issued by that service:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7. Number of report issued by that service:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8. Reason(s) of extension (if applicable):

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9. Any remarks:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10. Place:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11. Date:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12. Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13. Annexed to this communication is a list of documents in the approval file deposited at the Approval Authority which has considered this

approval and which can be obtained upon request.

(1) Distinguishing number of the country which has granted/extended/refused/withdrawn an approval
(2) Delete that which does not apply.

(see approval provisions in the Regulation).

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ANNEX 2

ARRANGEMENT OF APPROVAL MARK

a = 12 mm (minimum)

The above approval mark affixed to a retreaded tyre shows that the retreading production unit concerned has been
approved in the Netherlands (E4) under approval number XXXR002439 meeting the requirements of this Regulation in
its original form (00).

The approval number must be placed close to the circle and either above or below the (cid:145)E(cid:146) or left or right of that letter.
The digits of the approval number must be on the same side of the (cid:145)E(cid:146) and face in the same direction. The use of Roman
numerals as approval numbers should be avoided so as to prevent any confusion with other symbols.

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C 177 E/61

ANNEX 3

ARRANGEMENT OF RETREAD TYRE MARKINGS

Example of the markings to be borne by retreaded tyres placed on the market after the entry into force of this
Regulation

b: 6 mm (min.)

c: 4 mm (min.)

d: 3 mm (min.)

and from 1998, 4 mm (min.)

These markings define a retreaded tyre:

having a nominal section width of 185;

having a nominal aspect ratio of 70;

of radial-ply structure (R);

having a nominal rim diameter of code 14;

having a service description (cid:145)89T(cid:146) indicating a load capacity of 580 kg corresponding to a load index of (cid:145)89(cid:146) and a
maximum speed capability of 190 km/n corresponding to a speed symbol (cid:145)T(cid:146);

for fitting without an inner tube ((cid:145)TUBELESS(cid:146));

of snow type (M+S);

retreaded in the weeks 25, 26, 27 or 28 of the year 2003;

The positioning and order of the markings constituting the tyre designation shall be as fallows:

(a) the size designation, comprising the nominal section width, the nominal aspect ratio, the type-of-structure symbol
(where applicable) and the nominal rim diameter shall be grouped as shown in the above example: 185/70R14;

(b) the service description comprising the load index and the speed symbol shall be placed near the size designation. It

may either precede the size designation or follow it or be placed above or below it;

(c) the symbols (cid:145)TUBELESS(cid:146), (cid:145)REINFORCED(cid:146), and (cid:145)M+S(cid:146) may be at a distance from the size designation.

(d) the word (cid:145)RETREAD(cid:146) may be at a distance from the size designation.

C 177 E/62

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27.6.2000

ANNEX 4

LIST OF LOAD INDICES AND CORRESPONDING LOAD CAPACITIES

Load index (LI) and load capacity (cid:151) kg

kg

140

145

150

155

160

165

170

175

180

185

190

195

200

206

212

218

224

230

236

243

250

257

265

272

280

290

300

307

315

325

335

345

355

365

375

387

400

412

425

437

LI

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

kg

450

462

475

487

500

515

530

545

560

580

600

615

630

650

670

690

710

730

750

775

800

825

850

875

900

925

950

975

1 000

1 030

1 060

1 090

1 120

1 150

1 180

1 215

1 250

1 285

1 320

1 360

LI

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

kg

1 400

1 450

1 500

1 550

1 600

1 650

1 700

1 750

1 800

1 850

1 900

1 950

2 000

2 060

2 120

2 180

2 240

2 300

2 360

2 430

2 500

2 575

2 650

2 725

2 800

2 900

3 000

3 075

3 150

3 250

3 350

3 450

3 550

3 650

3 750

3 875

4 000

4 125

4 250

4 375

LI

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

kg

4 500

4 625

4 750

4 875

5 000

5 150

5 300

5 450

5 600

5 800

6 000

6 150

6 300

6 500

6 700

6 900

7 100

7 300

7 500

7 750

8 000

8 250

8 500

8 750

9 000

9 250

9 500

9 750

10 000

10 300

10 600

10 900

11 200

11 500

11 800

12 150

12 500

12 850

13 200

13 600

LI

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

kg

14 000

14 500

15 000

15 500

16 000

16 500

17 000

17 500

18 000

18 500

19 000

19 500

20 000

20 600

21 200

21 800

22 400

23 000

23 600

24 300

25 000

25 750

26 500

27 250

28 000

29 000

30 000

30 750

31 500

32 500

33 500

34 500

35 500

36 500

37 500

38 750

40 000

41 250

42 500

43 750

LI

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

kg

45 000

46 250

47 500

48 750

50 000

51 500

53 000

54 500

56 000

58 000

60 000

61 500

63 000

65 000

67 000

69 000

71 000

73 000

75 000

77 500

80 000

82 500

85 000

87 500

90 000

92 500

95 000

97 500

100 000

103 000

106 000

109 000

112 000

115 000

118 000

121 500

125 000

128 500

132 000

136 000

LI

.0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

kg

45

46.2

47.5

48.7

50

51.5

53

54.5

56

58

60

61.5

63

65

67

69

71

73

75

77.5

80

82.5

85

87.5

90

92.5

95

97.5

100

103

106

109

112

115

118

121

125

128

132

136

LI

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

27.6.2000

EN

Official Journal of the European Communities

C 177 E/63

TYRE SIZE DESIGNATION AND DIMENSIONS (IN ACCORDANCE WITH ECE REGULATION No 30)

ANNEX 5

For this information refer to annex 5 of ECE Regulation No 30.

ANNEX 6

METHOD OF MEASURING PNEUMATIC TYRES

1.

Preparing the tyre

1.1.

The tyre shall be mounted on the test rim specified by the retreader and inflated to the pressure of 3 to 3.5 bar.

1.2.

The tyre pressure shall be adjusted as follows:

1.2.1.

for standard bias belted tyres (cid:151) to 1.7 bar;

1.2.2.

for diagonal (bias ply) tyres (cid:151) to:

Pressure (bar) for Speed symbol

Ply rating

L, M, N

P, Q, R, S

T, U, H, V

4

6

8

1.7

2.1

2.5

2.0

2.4

2.8

(cid:151)

2.6

3.0

1.2.3.

for standard radial tyres (cid:151) to 1.8 bar;

1.2.4.

for reinforced tyres (cid:151) to 2.3 bar.

2.

Measuring procedure

2.1.

The tyre, mounted on its rim, shall be conditioned at the ambient room temperature for not less than 24 hr, save as otherwise required by
paragraph 6.8.3 of this Regulation.

2.2.

The tyre pressure shall be readjusted to the level specified in paragraph 1.2 of this annex.

2.3.

The overall width shall be measured at six equally spaced points around the tyre, taking account of the thickness of any protective ribs or
bands. The highest reading obtained shall be taken as the overall width.

2.4.

The outer diameter shall be calculated from a measurement of the maximum circumference of the inflated tyre.

C 177 E/64

EN

Official Journal of the European Communities

27.6.2000

ANNEX 7

PROCEDURE FOR LOAD/SPEED ENDURANCE TESTS

(In principle in accordance with annex 7 of Regulation No 30)

1.

Preparing the tyre

1.1.

Mount a retreaded tyre on the test rim specified by the retreader.

1.2.

Inflate the tyre, to the appropriate pressure as given (in bar) in the table below:

Speed Category

Diagonal (bias-ply) tyres

Radial Tyres

Bias-belted tyres

Ply-rating

Standard

Reinforced

Standard

L, M, N

P, Q, R, S

T, U, H

V

4

2.3

2.6

2.8

3.0

6

2.7

3.0

3.2

3.4

8

3.0

3.3

3.5

3.7

2.4

2.6

2.8

3.0

(cid:151)

3.0

3.2

3.4

(cid:151)

2.6

2.8

(cid:151)

1.3.

The retreading production unit may request, giving reasons, the use of a test inflation pressure different from those given in paragraph 1.2 of
this annex. In this case the tyre shall be inflated to the requested pressure.

1.4.

Condition the tyre and wheel assembly at test-room temperature for not less than three hours.

1.5.

Readjust the tyre pressure to that specified in paragraph 1.2 or 1.3 of this annex.

2.

Test procedure

2.1.

Mount the tyre and wheel assembly on a test axle and press it against the outer face of a smooth surfaced power driven test drum either
1.70 m – 1 per cent or 2.00 m – 1 per cent diameter

2.2.

Apply to the test axle a load equal to 80 per cent of:

2.2.1.

the maximum load rating corresponding to the Load Index for tyres with Speed Symbols L to H inclusive,

2.2.2.

the maximum load rating associated with a maximum speed of 240 km/h for tyres of Speed Symbol
Regulation).

(cid:145)V(cid:146)

(see paragraph 2.32 of this

2.3.

Throughout the test the tyre pressure must not be corrected and the test load must be kept constant.

2.4.

During the test the temperature in the test-room must be maintained at between 20(cid:176) and 30 (cid:176)C unless the tyre manufacturer or retreader
agrees to a higher temperature.

2.5.

The endurance test programme shall be carried out without interruption and shall be as follows:

2.5.1.

time taken from zero speed to initial test speed: 10 minutes;

2.5.2.

initial test speed: prescribed maximum speed for the tyre concerned, less 40 km/h in the case of a test drum of 1.70 m – 1 per cent diameter
or less 30 km/h in the case of a test drum of 2.00 m – 1 percent diameter;

2.5.3.

successive speed increments: 10 km/h up to the maximum test speed;

2.5.4. duration of test at each speed step except the last: 10 minutes;

2.5.5. duration of test at last speed step: 20 minutes;

2.5.6. maximum test speed: prescribed maximum speed for the tyre concerned, less 10 km/h in the case of a test drum of 1.70 m – 1 per cent

diameter or the prescribed maximum speed in the case of a test drum of 2.00 m – 1 per cent diameter.

3.

Equivalent test methods

If a method other than that described in paragraph 2 of this annex is used, its equivalence must be demonstrated.

27.6.2000

EN

Official Journal of the European Communities

C 177 E/65

ANNEX 8

EXPLANATORY FIGURE

See paragraph 2 of this Regulation