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Appendix 1

to Decree N ___________, 2004

of the Government of the Republic of Armenia

TECHNICAL REGULATIONS

PNEUMATIC TYRES

I. FIELD OF APPLICATION

1. These technical regulations apply to pneumatic tyres for the following means

of transportation:

1) Passenger-cars and their trailers, light trucks, special micro-buses (hereinafter

referred to as passenger vehicles);

2) Trucks and their trailers, buses and trolleybuses (hereinafter referred to as

trucks).

2. These technical regulations define the security requirements, terminology, and

marking of the pneumatic tyres for passenger vehicles and trucks referred to in

paragraph 1, as well as the procedures of evaluating their conformity, including

conformity assessment patterns, which have been determined taking into account the

level of risk connected with the use the tyres.

3. These technical regulations do not apply to the tyres of tractors and

agricultural vehicles, large trucks, construction and road elevators, as well as to those

means of transportation and pressure-regulated motorcycle equipment, which are

intended to be used in ores, mines, open mines and other special conditions.

II. TERMS AND BASIC REQUIREMENTS

4. Safety indicators for pneumatic tyres with appropriate substantiation

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4.1.Pneumatic tyres – elastic covers placed on the rims of wheels and filled with

gas or air under pressure.

4.2.Tyre Type – pneumatic tyres having the following common features:

1) Manufacturer;

2) Marking of tyre size;

3) Category of use;

a) for passenger vehicles: intended for ordinary (road) or winter or for

temporary use;

b) for trucks:

- normal – intended for ordinary roads;

- special – intended for special purposes, e.g., mixed (intended for on- and off-

road use) and/or for use at a limited speed;

- winter;

4) Structure:

a) for passenger vehicles – bias, belted-bias, radial tyres;

b) for trucks – bias, radial tyres;

5) Speed category marking;

6) Tyre capacity index;

7) Cross-section.

4.3. Winter tyres – tyres that unlike ordinary (road) tyres have protective layer

patterns and structure designed for enhanced cross-country ability in mud, snow and

sleet conditions.

4.4. Structure of pneumatic tyres – the technical characteristics of the tyre’s

carcass.

Normally the tyres have the following types of structure:

1) Bias – a structure in which the threads of the tyre base reach the tyre-cover

sidewall at successive angles far below 90° to the protective layer centreline;

2) Belted-bias – a structure of bias pneumatic tyres in which carcasses are

stretched in two or more layers with a belt made of practically inflexible bases,

making close successive angles to the angle of the carcass;

3) Radial – a structure in which the threads of the tyre base reach the tyre-cover

sidewall mainly at an angle of 90° to the protective layer centreline; their carcasses

are practically pinned down to the inflexible rim;

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4) Reinforced or high capacity – a structure of pneumatic tyres in which

carcasses are firmer than those of standard tyres;

5) Spare tyres for temporary use – pneumatic tyres designed for any vehicle in

normal traffic conditions and for temporary use in restricted traffic conditions;

6) T-type spare tyres for temporary use – temporary tyres intended to be used

in higher internal pressure conditions as compared to standard and reinforced tyres;

4.5. Tyre-cover sidewall – a tyre element that has a shape and structure enabling

it to be adjusted to the rim and to bear the tyre.

4.6. Base – threads forming the fabric in the layers of a pneumatic tyre.

4.7. Layer – a belt made of rubberized layers of the base parallel to one another.

4.8. Carcass – a part of pneumatic tyre not considered either a protective layer or

a rubber rim, which carries the load in an inflated state.

4.9. Protective layer – a part of a pneumatic tyre that contacts the ground. This

part protects the carcass from a physical damage and contributes to the wheel’s

traction.

4.10. Sidewall – a part of a pneumatic tyre situated between the protective layer

and the belt and covered with the edge of the rim.

4.11. The lower part of the sidewall – a belt situated between the maximum

section and the tyre belt and covered with the edge of the rim.

4.12. Protective layer furrows – a space between two neighbouring juts and/or

squares of the protective layer pattern.

4.13. Profile width (S) – a linear space between external sidewalls of an inflated

pneumatic tyre, without considering juts created with marking, decorative seams or

protective layers.

4.14. Overall width dimensions – a linear space between the external sidewalls

of an inflated pneumatic tyre, including marking, decorative and protective layers or

juts.

4.15. Profile height (H) – a space equal to half of the difference between a tyre’s

outer diameter and the rim.

4.16. Correlation of profile height to its width (Ra) – the quotient of the

division of the profile height (H) on the nominal profile width (S1) multiplied by a

hundred, both values being expressed in the same measuring unit.

4.17. Outer diameter (P) – the overall diameter of a newly charged tyre.

4.18. Tyre dimensions marking

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4.18.1. The marking must include:

1) The nominal profile width (S1) expressed in millimetres, except for those types

of tyres whose markings are given in the first columns of the following tables of

Appendix A of these technical regulations:

a) for passenger vehicle tyres: A.1–A.3;

b) for truck tyres: A.4–A.12.

2) The ratio of the nominal profile height to its width, except for those types of

tyres whose markings are given in the following tables of Appendix A of these

technical regulations:

a) for passenger vehicle tyres: A.1–A.3;

b) for truck tyres: A.4–A.12.

3) A conventional figure (d) is a figure characterising the nominal diameter of the

rim and corresponding to its diameter expressed with conventional units (a figure less

than 100) or millimetres (figures higher than 100). Both these figures may be

indicated simultaneously.

4) In case of truck tyres, it is the value of the conventional figure (d) in

millimetres indicated in Table 1.

5) Letter T shall be placed before the nominal profile width of spare tyres for

passenger vehicles intended for temporary use.

Table 1

Conventional unit (conventional figure, d) of nominal rim diameter

Value of conventional figure, d, mm

Conventional unit (conventional figure,

d) of nominal rim diameter

Value of conventional figure, d, mm

8 203

9 229

10 254 14.5 368

11 279 16.5 419

12 305 17.5 445

13 330 19.5 495

14 356 20.5 521

15 381 22.5 572

16 406 24.5 622

4

17 432

18 457

19 482

20 508 26 660

21 533 28 711

22 559 30 762

23 610

24 635

25 -

4.19. Nominal rim diameter, d – the diameter of the belt on which the tyre is

assembled.

4.20. Rim – the base of the tyre with or without an inner tube, on which the

sidewalls of the tyre are based.

4.21. Theoretical rim (truck tyres) – a rim, whose width is x times larger than the

nominal profile width of the tyre.

The value of a theoretical rim (x) is indicated by the manufacturer.

4.22. Measuring rim – a rim on which tyres are placed in order to check their

dimensions.

4.23. Test rim – a rim on which tyres are placed for testing their strength

depending on the load and speed.

4.24. Coming off – separation of pieces from the rubber of the protective layer.

4.25. Exfoliation of the base – separation of the base from the cover surrounding

it.

4.26. Exfoliation of layers – separation of neighbouring layers from one another.

4.27. Exfoliation of the protective layer – separation of the protective layer from

the carcass.

4.28. Indicator of the protective layer wear – internal beads of furrows of the

protective layer intended for the visual determination of the degree of its depreciation.

4.29. Tyre capacity index

4.29.1. In case of passenger vehicle tyres - a figure characterised by the check

weight, used for calculating the tyres in operation, according to the manufacturer’s

requirements.

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4.29.2. In case of truck tyres – one or two figures indicating the load that a single

tyre, or a single and double tyres can withstand according to the speed assigned to that

specific category and to the requirements set by the manufacturer when certifying the

use of the tyres in operation.

The given tyre types may have one or several groups of tyre capacity indices,

depending on whether the requirements mentioned in paragraph 6.2.5. of these

technical regulations are applied or not.

4.29.3. The indicators and their corresponding loads are listed in Appendix B.

4.30. Speed category

4.30.1. The maximum speeds for passenger vehicle tyres are listed in Table 2

according to the speed category markings.

Table 2

Speed category marking Maximum speed km/h

L 120 M 130 N 140 P 150 Q 160 R 170 S 180 T 190 U 200 H 210 V 240 W 270 Y 300

4.30.2. The maximum speeds for truck tyres are listed in Table 3, according to the

speed category markings.

Table 3 Speed category

markingCorresponding

speed, km/hSpeed category

marking Corresponding

speed, km/h

F 80 P 150

G 90 Q 160

6

J 100 R 170

K 110 S 180

L 120 T 190

M 130 U 200

N 140 H 210

V 240

4.31. Protective layer pattern

4.31.1. Basic furrows – wide furrows in the middle of the protective layer, with

marks indicating the wear of the protective layer.

4.31.2. Additional furrows – auxiliary patterns of furrows of the protective layer

that can disappear during the service period of the tyres.

4.32. The maximum indicator of tyres (for passenger vehicle tyres) – the

maximum weight, for which the tyres are designed.

4.32.1. For speeds below 210 km/h, the maximum load indicator must not exceed

the value corresponding to the tyre capacity index.

4.32.2. For speeds exceeding 210 km/h but less than 240 km/h (tyres of speed

category V) the maximum value of load, taking into account the means of

transportation on which the tyres are placed, must not exceed the value corresponding

to the tyre capacity index set forth in percents in Table 4.

Table 4

Maximum speed, km/h Load, %

215 98.5

220 97

225 95.5

230 94

235 92.5

240 91

The linear method of interpolation of the maximum load indicator may be applied

for the maximum value of intermediate speed.

4.32.3. For speeds higher than 240 km/h (tyres of speed category W) the

maximum load indicator, taking into account the means of transportation on which the

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tyres are placed, must not exceed the value corresponding to the tyre capacity index

set forth in percents in Table 5.

Table 5 Maximum speed, km/h Load, %

240 100

250 95

260 90

270 85

The linear method of interpolation of the maximum load indicator may be applied

for the maximum value of intermediate speed.

4.32.4. For speeds higher than 270 km/h (tyres of speed category Y) the

maximum load indicator, taking into account the means of transportation on which the

tyres are placed, must not exceed the maximum value of speed corresponding to the

percentage of the tyre capacity index set forth in Table 6.

Table 6 Maximum speed, km/h Load, %

270 100

280 95

290 90

300 85

4.32.5. For speeds that do not exceed 60 km/h, the maximum load indicator,

taking into account the means of transportation on which the tyres are placed, must

not exceed the percentage of weight corresponding to the tyre capacity as well as the

estimated maximum speed set forth in Table 7.

Table 7

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Maximum speed, km/h Maximum load indicator, %

25 142

30 135

40 125

50 115

60 110

4.32.6. For speeds higher than 300 km/h the maximum load indicator, taking into

account the maximum speed capacity of tyres, must not exceed the weight determined

by the tyre manufacturer.

The manufacturer may apply the linear method of interpolation of the maximum

load indicator for intermediate speeds between 300 km/h and the maximum speed.

4.33. Table of the changes of the load depending on speed – a table set forth in

Appendix C for the endurance of truck tyre in case of speeds different from the

nominal speed indicated on the marking, depending on the tyre capacity index, and

the load change indicated on the nominal speed marking. The changes of load do not

apply in case of speed category obtained on the basis of the additional tyre capacity

index and paragraph 6.2.5 of these regulations.

4.34. Tyre safety indicators and their values are set forth in Table 8.

Table 8 Name of indicator Value Method of testing

For passenger vehicle tyres

For truck tyres

1. The change of values from nominal values: a) outer diameter - for road tyre, %

- for a different tyre, %

b) profile width, %, not more than

+1.0

+1.5

3.0

+1.5

According to paragraph 6.1 or GOST1 26000

- for radial tyre 4.0

- for bias tyre 5.0

1 Translator’s note: State standard.

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c) of double wheels and tyre profile in case of width < 305 mm- radial - 2.0

- bias - 4.0 2. Reliability depending on speed and load

The absence of separation of protective layer elements,

According to paragraph 6.2

bursts, cracks on the basis of the elements of the protective layer, exfoliations of the base, the layers and the protective layer, ruptures of the base layers

3. The increase in the tyre diameter 6 hours after strength tests, %, not more than

3.5According to paragraph

6.2

4. The height of the wear indicator, mm

According to paragraph 6.3

1.6+0.60 1.6+0.5

0 or GOST 4754& GOST 5513

4.34.1. For tyres marked with the index of speed category V in case of the 2nd

indicator from Table 8 of these technical regulations, partial fragmentation of the

protective layer is allowed.

4.34.2. The standards set forth in the “Methods of Testing” column of Table 8 of

these technical regulations are as follows:

GOST 4754 Pneumatic tyres for passenger vehicles and their trailers, light trucks and special micro-buses. Technical conditions

GOST 5513 Pneumatic tyres for trucks and their trailers, buses and trolleybuses. Technical conditions

GOST 26000 Pneumatic tyres: Method of determining basic dimensions.

5. Marking of pneumatic tyres

5.1.The following shall be indicated on both sides of manufactured proportionate

tyres and on the outer side of disproportionate tyres:

5.1.1. The trademark and/or the name, and the location of the manufacturer;

5.1.2. The marking of tyre dimensions in accordance with paragraph 4.18. of

these technical regulations;

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5.1.3. The structure:

1) For truck tyres:

a) marking may not be required for bias tyres, or letter D may be indicated before

the diameter mark;

b) letter R and/or the word “RADIAL” shall be indicated before the marking for

tyres with radial structure;

c) letter B and/or the word “BIAS BELTED” shall be indicated before the rim

diameter mark for tyres with a bias belted structure; letter R indicated before the rim

diameter mark for tyres with a radial structure intended for speeds higher than 240

km/h can be replaced with letters ZR.

2) For truck tyres:

a) no marking shall be required, or letter D shall be indicated for bias tyres;

b) letter R and the word “RADIAL” shall be indicated before the rim diameter

for tyres with radial structure.

5.1.4. Trademark (tyre model);

5.1.5. Marking (markings) of the speed category:

a) The marking for passenger vehicles shall be made according to Table 2, and

for trucks, according to Table 3 of these technical regulations.

Operational characteristics (tyre capacity index and speed category) shall be

indicated on passenger vehicle tyres suitable for speeds higher than 300 km/h

corresponding to the tyres with operational characteristics of up to 300 km/h.

Operational characteristics shall be written in brackets (e.g., (95Y);

b) Speed category 2 shall also be marked on truck tyres in case the provisions of

paragraph 6.2.5. are applied.

5.1.6. Letters M+S or M.S for winter tyres, or M&S or the word “All seasons” for

tyres intended for all seasons.

5.1.7. The tyre capacity index, according to the definition stated in paragraph 4.29

of these technical regulations.

5.1.8. The word “TUBELESS” if the tyres are intended for use without inner

tubes.

5.1.9. The words “REINFORCED” or “EXTRA LOAD” in case of reinforced

tyres for passenger vehicles.

5.1.10. The date of production in four digits, the first two indicating the week of

production and the last two indicating the year of production.

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5.1.11. The conventional sign “v” in diameter not less than 20 mm or the word

“REGROOVABLE” shall be embossed on either sidewall of restored tyres intended

for trucks.

5.1.12. The air pressure figure of inflated truck tyres, which must be maintained

during the tests determining the steadiness of the tyre depending on speed and load,

shall be calculated with the help of the pressure index “PSI” set forth in Table E of

Appendix E of these technical regulations.

5.1.13. The marking of tyre corresponding to the structure of the rim, if it is

different from the standard structure.

5.1.14. The sign “TWI” that shows the space for placing the wear index on the

shoulder of the protective layer.

5.1.15. The sign of tyre balance (for passenger vehicles and light trucks).

5.1.16. The sign of the direction of rotation (in case the pattern shows the

direction); the sign of tyre balancing intended for passenger vehicles.

5.1.17. “All steel” for all-metal-based tyres.

5.2. There must be some free space on the tyre, for placing the sign of the official

approval of the tyre type. The form of the sign of the official approval of tyre type

must be consistent with the requirements defined by rules EEK OON N 30 and N 54.

5.3. The marking of the sign of the official approval of the tyre type and other

markings described in paragraph 5.1 of these technical regulations shall be embossed

on the tyre.

5.4. The sign of conformity set according to the laws of the Republic of Armenia

testifying the official recognition of the tyre meeting the requirements of these

technical regulations may be stamped in the accompanying technical documentation.

5.5. Besides the markings listed in paragraph 5.1, additional markings are allowed

by the consumers’ consent.

6. Characteristics of pneumatic tyres

6.1. Dimensions of tyres

6.1.1. Tyre profile width

6.1.1.1. The width of the tyre’s profile shall be calculated using the following

formula:

S=S1+K(A-A1),

where

S - is the width of the profile in mm, as measured on the measuring rim.

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S1 - is the size of the nominal width of the profile indicated on the sidewalls of the

tyres.

A - is the width of the measuring rim in mm, indicated by the manufacturer in the

technical description.

If the conventional figure is in conventional units, then it shall be multiplied by

25.4 to be converted to millimetres.

A1 - is the width of the theoretical rim in mm.

The value S1 multiplied by the factor x set by the manufacturer is applied for A1

and the value 0.4 is applied for K.

6.1.1.2. For the types of tyres whose markings are listed in the first columns of the

tables of Appendix A of these technical regulations, the widths of profile must be the

same as the data listed in these tables next to the markings of the tyre types.

6.1.2. The outer diameter of tyres

6.1.2.1. The outer diameter of tyres is calculated using the following formula:

D=d+2H

where

D - is the outer diameter in mm.

d - is a conventional figure calculated according to subparagraph 3 of paragraph

4.18.1 of these technical regulations.

If the conventional figure is in conventional units, then it shall be multiplied by

25.4 to be converted to millimetres.

S1 - is the width of the nominal profile in mm.

Rd - is the ratio of the height of the nominal profile to its width;

H - is the height of the nominal profile in mm, which is equal to S1 x 0.01Rd.

All these values must correspond to the requirements set forth in paragraph 3.3 of

these technical regulations, in accordance with the marking of sizes indicated on the

sidewalls of the tyres.

6.1.2.2. For the types of tyres whose markings are listed in the first columns of the

tables in Appendix A of these technical regulations, the outer diameter must be the

same as the figure indicated in these tables next to the markings of the tyre types.

6.1.3. The Method of Measuring the Tyre

Tyres shall be measured using the method set forth in Appendix D of these

technical regulations.

6.1.4. Tyre profile characteristics

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6.1.4.1. The overall width of passenger vehicle tyres can be less than the width of

the profile determined in paragraph 4.1.1; it can exceed this value by 6% in case of

bias tyres, and by 4% in case of radial tyres; besides, if the tyres have special

protective sides (or belts) then the values corresponding to the application of these

deviations can exceed 8 mm.

It can exceed by 4% for truck tyres of radial structure and by 8% in case of a bias

(belted-bias) structure. For tyres of radial structure with a profile width exceeding 305

mm, intended for double wheels, it must exceed by no more than 2%, and for tyres of

bias (belted-bias) structure, by 4%.

6.1.5. Characteristics of the outer diameter of tyres

The outer diameter of tyres must be between the values Dmin and Dmax, which are

determined using the following formula:

Dmin=d+(2H x a)

Dmax=d+(2H x b)

6.1.5.1. For dimensions listed in Appendix A, H=0.5(D-d) (Paragraph 6.1.2.1).

6.1.5.2. For other dimensions not listed in Appendix A, the value of H and d shall

be determined according to paragraph 6.1.2.1.

6.1.5.3. Factors a and b are respectively equal to

1) a=0.97;

2) factor “b” of the type of ordinary (road) passenger vehicles:

a) for radial tyres = 1.04;

b) for bias (belted-bias) tyres = 1.08;

3) factor “b” for truck tyres is listed in Table 9.

Table 9 Category of use of tyre Structure

Radial BiasOrdinary 1.04 1.07 Special 1.06 1.09

4) The overall diameter of winter tyres Dmax , if calculated according to the

aforementioned formula, can be exceeded by 1%.

6.2. Tests determining strength depending on the speed and load

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6.2.1. Every type of tyre depending on the speed and load must pass at least one

strength test in accordance with the method described in Appendix E of these


6.2.1.1. For passenger vehicle tyres that have letters ZR indicated before the sizes

and which are fit for speeds higher than 300 km/h, the aforementioned speed and load

tests shall be conducted on one tyre, taking into account the speed and load indicated

on the tyre. At the same time, the test shall be conducted on a second sample tyre of

the same type; in this case the maximum speed and load indicated in the

manufacturer’s technical description shall be used.

The tests of the second tyre can be conducted on the first tyre, if permitted by the

manufacturer.

6.2.2. A tyre is considered to have passed the strength tests if no coming off of the

rubber pieces or cracking of the base or exfoliation of layers and the protective layer

have been observed on the protective layer.

However, passenger vehicle tyres with a speed marking V, on which, after the

required tests, partial exfoliation depending on certain testing conditions has been

observed, are considered to have passed the test successfully.

6.2.3. Six hours after the tests determining the strength depending on the speed

and the load, the outer diameter of the tyre should not have expanded by more than

+3.5%., compared to the diameter measured before the tests.

6.2.4. If the official approval of the truck tyres for speed and load set forth in

paragraph 6.2.1 is different from nominal values described in Appendix C of these

technical regulations, then the strength tests shall not be mandatory.

6.2.5. If such types of truck tyres are submitted for official approval on which the

combination of the values of speed and load is expressed as a change of load

depending on speed, the way they are listed in table C.1 of Appendix C, then,

according to paragraph 6.2.1, a second tyre of the same type shall be tested for the

strength, in conditions of additional combination of speed and load.

6.3. Protective layer wear indicator (for passenger vehicle tyres)

6.3.1. In some cases on tyres there must be wear indicators of 6 traverse lines

placed in the basic furrows of the protective layer at an approximately equal distance

from one another. These wear indicators must be presented in such a manner that they

are not confused with the rubber partitions between the sides or blocks of the

protective layer.

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6.3.2. Four lines of wear indicators of the protective layer are allowed for tyres,

which fit on rims having a nominal diameter of not more than 12 inches.

6.3.3. The wear indicators of the protective layer should serve as means of

determining accurately the height of the wear indicator set forth in Table 8 of these

technical regulations, starting from the moment when the depth of the furrows of the

protective layer doesn’t exceed 1.6 mm.

6.3.4. The height of the wear indicator of the protective layer shall be determined

by means of measuring the difference between the depth of the protective layer in the

highest point of the wear indicator starting from the surface of the protective layer,

and the depth of the protective layer near the sidewalls in the protective layer base.

III. RULES OF ENTERING THE MARKET

7. Tyres may enter the market only if they are safe for users, or third parties, their

life, health and environment.

8. The tyres that enter the market must meet the requirements defined by these


9. If the conformity of a tyre has not been certified, or if after being certified

through the conformity evaluation procedures specified in chapter V of these technical

regulations, it has been discovered that a tyre may pose danger to the safety of users

or third parties, the environment and property, then all measures provided by law must

be taken to prohibit that tyre from entering the market, to withdraw it from use and

restrict its free transportation.

IV. PRESUMPTION OF CONFORMITY (PROOF BY STANDARDS)

10. Tyres may be considered as meeting the requirements of these technical

regulations if they are:

a) accompanied by a declaration or a conformity certificate, and are certified by

the procedures described in chapter V of these technical regulations;

b) produced and certified according to the procedures defined by the national

standards, that are consistent with the international and regional standards, are

confirmed by the national standardisation authority and included in the list published

16

in the report “On Technical Regulations”, which ensures the implementation of these


The application of the standards included in the published list is voluntary;

however, the fact of applying these standards serves as a proof of implementing the

requirements of these technical regulations.

V. CONFORMITY EVALUATION PROCEDURES

11. In order to have the conformity of the tyres certified according to the

requirements of these technical regulations, the producer, supplier or his/her

authorised representative must have a conformity declaration certified according to

Declaration Pattern 2 h-4 h, as described in ____________, 2004 Decree #

____________ of the Government of the Republic of Armenia “On Approving the

Procedural Patterns of Mandatory Conformity Certification of Products and Services”

or a conformity certificate certified by one of Certification Patterns 1 s-6 s.

12. The producer, supplier or his/her authorised representative may place a Sign

of Conformity on the tyres as well as on the accompanying technical documents

similar to the sign confirmed by May 18, 2000 Decree # 247 of the Government of the

Republic of Armenia on measures to enforce separate articles of the Law of the

Republic of Armenia “On Certification in Accordance with Normative Requirements

for Products and Services.”

The actions defined by the patterns of conformity certification must be performed

according to ____________ , 2004 Decree # ____________of the Government of the

Republic of Armenia “On Approving the Procedural Patterns of Mandatory

Conformity Certification for Products and Services” and the standards of the system

of conformity certification set forth in chapter IV of these technical regulations.

13. For the purpose of testing, the certifying authority shall perform the sampling

of tyres together with the producer, supplier or his/her authorised representative,

selecting one tyre of each mark included in a given consignment.

14. In the process of identification of tyres, the conformity of labels on their

sidewalls, including the presence of official confirmation of the tyre type, to the

accompanying documentation shall be checked in accordance with the requirements

set forth in paragraph 5 of these technical regulations.

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15. The testing authority shall conduct the tests according to the testing

procedures set forth in paragraph 6 of these technical regulations.

16. The validity period of the conformity declaration and the conformity

certificate shall be determined according to the pattern used for obtaining the

conformity certificate:

a) in case of patterns 1 s – 6 months;

b) in case of pattern 2 h or 2 s – 12 months;

c) in case of pattern 3 h, 4 h, 3 s or 6 s – 24 months;

d) in case of pattern 4 s or 5 s – 36 months.

17. According to the results of conformity control, the certifying authority shall

be entitled to keep the validity period of the conformity certificate unchanged,

suspend or terminate it.

In the event of suspending or terminating the conformity certificate, the certifying

authority shall notify the holder of the conformity certificate about the termination

and send a written notification to the authorised agencies responsible for inspection.

VI. STATE CONTROL

18. The government controls the compliance of pneumatic tyres with the

requirements of these technical regulations in the stage, when the tyres are sold, in the

manner set forth in the Law of the Republic of Armenia “On the Evaluation of

Conformity” passed on ___________ 2004.

18

Appendix A

Markings of tyre sizes and dimensions

A.1. Markings of sizes and dimensions of passenger vehicle tyres

A.1.1. Markings of sizes and dimensions of tyres with bias structure (European

tyres) are set forth in table A.1.

Table A.1

Size Code of measuring rim

width

Overall diameter, mm

Tyre profile width, mm

Nominal rim size, d, mm

of super-low pressure series4.80-10 3.5 490 128 254 5.20-10 3.5 508 132 254 5.20-12 3.5 558 132 305 5.60-13 4 600 145 330 5.90-13 4 616 150 330 6.40-13 4.5 642 163 350 5.20-14 3.5 612 132 356 5.60-14 4 626 145 356 5.90-14 4 642 150 356 6.40-14 4.5 666 163 356 5.60-15 4 650 145 381 5.90-15 4 668 150 381 6.40-15 4.5 692 163 381 6.70-15 4.5 710 170 381 7.10-15 5 724 180 381 7.60-15 5.5 742 193 381 8.20-15 6 760 213 381 of low profile series 5.50-12 4 552 142 305 6.00-12 4.5 574 156 305 7.00-13 5 644 178 330 7.00-14 5 668 178 356 7.50-14 5.5 688 190 356 8.00-14 6 702 203 356 6.00-15 L 4.5 650 156 381 of super-low profile series155-13/6.15-13 4.5 582 157 330 165-13/6.45-13 4.5 600 167 330 175-13/6.95-13 5 610 178 330 155-14/6.15-14 4.5 608 157 356 165-14/6.45-14 4.5 626 167 356

19

175-14/6.95-14 5 638 178 356 185-14/7.35-14 5.5 654 188 356 195-14/7.75-14 5.5 670 198 356 of ultra-low profile series5.9-10 4 483 148 254 6.5-13 4.5 586 166 330 6.9-13 4.5 600 172 330 7.3-13 5 614 184 330

A.1.1.1. The following size markings are permitted for tyres of super-low profile

series:

185-14/7, 35-14, or 185-14, or 7.35-14, or 7.35-14/185-14

A.1.2. Radial tyres of millimetre series (European tyres) are set forth in table A.2.

Table A.2

Size Code of measuring rim

width

Overall diameter, mm

Tyre profile width, mm

Nominal rim size, d, mm

125 R 10 3.5 459 127 254 145 R 10 4 492 147 254 125 R 12 3.5 510 127 305 135 R 12 4 522 137 305 145 R 12 4 542 147 305 155 R 12 4.5 550 157 305 125 R 13 3.5 536 127 330 135 R 13 4 548 137 330 145 R 13 4 566 147 330 155 R 13 4.5 578 157 330 165 R 13 4.5 596 167 330 175 R 13 5 608 178 330 185 R 13 5.5 624 188 330 125 R 14 3.5 562 127 356 135 R 14 4 574 137 356 145 R 14 4 590 147 356 155 R 14 4.5 604 157 356 165 R 14 4.5 622 167 356 175 R 14 5 634 178 356 185 R 14 5.5 650 188 356 195 R 14 5.5 666 198 356 205 R 14 6 686 208 356 215 R 14 6 700 218 356 225 R 14 6.5 714 228 356 125 R 15 3.5 588 127 381 135 R 15 4 600 137 381 145 R 15 4 616 147 381

20

155 R 15 4.5 630 157 381 165 R 15 4.5 646 167 381 175 R 15 5 660 178 381 185 R 15 5.5 674 188 381 195 R 15 5.5 690 198 381 205 R 15 6 710 208 381 215 R 15 6 724 218 381 225 R 15 6.5 738 228 381 235 R 15 6.5 752 238 381 175 R 15 5 686 178 406 185 R 15 5.5 698 188 406 205 R 15 6 736 208 406

A.1.3. The permitted deviations of the overall diameter and tyre profile width are

listed in table 8 of these technical regulations.

A.1.4. The radial tyres on TR 5 rims of series 45 are listed in table A.3.

Table A.3

SizeWidth of

measuring rim

Overall dimensions Tyre profile width

280/45 R 415 240 661 281

A.2. European truck tyres

A.2.1. The dimensions of radial and bias tyres with conventional units connected

to the edge at an angle of 5, or placed on the flat rim are listed in table A.4.

Table A.4Tyre size marking

Width of measuring rim with

conventional units

Nominal rim diameter, d,

mm

Outer diameter, D, mm Width of profile, S, mm

with radial structure

with bias structure


with bias structure

Standard Series4.00R8* 2.50 203 414 414 107 107 4.00R10* 3.00 254 466 466 108 108 4.00R12* 3.00 305 517 517 108 108 4.50R8* 3.50 203 439 439 125 125 4.50R10* 3.50 254 490 490 125 125 4.50R12* 3.50 305 545 545 125 128 5.00R8* 3.00 203 467 467 132 132 5.00R10* 3.50 254 516 516 134 134 5.00R12* 3.50 305 568 568 134 137 6.00R9 4.00 229 540 540 160 160

21

6.00R14C 4.50 356 626 625 158 158 6.00R16* 4.50 406 728 730 170 170 6.50R10 5.00 254 588 588 177 177

6.50R14C 5.00 356 640 650 170 172 6.50R16 * 4.50 406 742 748 176 176 6.50R20 * 5.00 508 860 - 181 -7.00R12 5.00 305 672 672 192 192

7.00R14C 5.00 356 650 668 180 182 7.00R15 * 5.00 381 746 752 197 198 7.00R16C 5.50 406 778 778 198 198 7.00R16 5.50 406 784 774 198 198 7.00R20 5.50 508 892 898 198 198 7.50R10 5.50 254 645 645 207 207

7.50R14C 5.50 356 686 692 195 192 7.50R15 * 6.00 381 772 772 212 212 7.50R16 * 6.00 406 802 806 210 210 7.50R17 * 6.00 432 852 852 210 210 4.50R20 6.00 508 928 928 210 213 8.25R15 6.50 381 836 836 230 234 8.25R16 6.50 406 860 860 230 234 8.25R17 6.50 432 886 895 230 234 8.25R20 6.50 508 962 970 230 234 9.00R15 6.00 381 840 840 249 249

9.00R16 * 6.50 406 912 900 246 252 9.00R20 7.00 508 1018 1012 258 256 10.00R15 7.50 381 918 918 275 275 10.00R20 7.50 508 1052 1050 275 275 10.00R22 7.50 559 1102 1102 275 275 11.00R16 6.50 406 980 952 279 272 11.00R20 8.00 508 1082 1080 286 291 11.00R22 8.00 559 1132 1130 286 291 11.00R24 8.00 610 1182 1180 286 291 12.00R20 8.50 508 1122 1120 313 312 12.00R22 8.50 559 1174 1174 313 312 12.00R24 8.50 610 1226 1220 313 312 13.00R20 9.00 508 1176 1170 336 342 14.00R20 10.00 508 1238 1238 370 375 14.00R24 10.00 610 1340 1340 370 375 16.00R20 13.00 508 1370 1370 446 446

Series 80 12/80R20 8.50 508 1008 - 305 -13/80R20 9.00 508 1048 - 326 -14/80R20 10.00 508 1090 - 350 -14/80R24 10.00 610 1192 - 350 -

14.75/80R20 10.00 508 1124 - 370 -15.5/80R20 10.00 508 1158 - 384 -

Universal car tyres for expanded rims

22

7.50 R 18MPT 5.50 457 885 - 208 10.5 R 18MPT 9 457 905 276 270 10.5 R 20MPT 9 508 955 276 270 12.5 R 18MPT 11 457 990 330 325 12.5 R 20MPT 11 508 1040 330 325 14.5 R 20MPT 11 508 1095 362 355 14.5 R 24MPT 11 610 1195 362 355

A.2.1.1. The “-” sign shall replace letter “R” on tyres with bias structure (e.g.,

5.00-8).

A.2.1.2. The marking of tyre sizes listed in table A.4 with the sign “*” can be

supplemented with letter C (e.g., 6.00-16C).

A.2.2. The dimensions of radial tyres placed on the rim at an angle of 15 to the

edge are listed in table A.5.

Table A.5

Tyre size marking

Width of measuring rim

with conventional units

Nominal rim diameter, d, mm

Outer rim diameter, D,

mm

Width of profile, S, mm

7 R 17.51) 5.25 445 752 185 7 R 19.5 5.25 495 800 185 8 R 17.51) 6.00 445 784 208 8 R 19.5 6.00 495 856 208 8 R 22.5 6.00 572 936 208

8.5 R 17.5 6,00 445 802 215 9 R 17.5 6.75 445 820 230 9 R 19.5 6.75 495 894 230 9 R 22.5 6.75 572 970 230

9.5 R 17.5 6.75 445 842 240 9.5 R 19.5 6.75 495 916 240 10 R 17.5 7.50 445 858 254 10 R 19.5 7.50 495 936 254 10 R 22.5 7.50 572 1020 254 11 R 22.5 8.25 572 1050 279 11 R 24.5 8.25 622 1100 279 12 R 22.5 9.00 572 1084 300 13 R 22.5 9.75 572 1124 320 15 R 19.5 11.75 495 998 387 15 R 22.5 11.75 572 1074 387

16.5 R 19.5 13.00 495 1046 425 16.5 R 22.5 13.00 572 1122 425 18 R 19.5 14.00 572 1158 457 18 R 22.5 - - - -

23

Series 70 10/70 R 22,5 7.50 572 928 254 11/70 R 22,5 8.25 572 962 279 12/70 R 22,5 9.00 572 1000 305 13/70 R 22,5 9.75 572 1033 330

A.2.2.1. The marking of tyre sizes listed in table A.5 with the sign “*” can be

supplemented with letter C (e.g., 7 R 17.5 C).

A.2.3. The dimensions of light truck tyres with radial and bias structure are listed

in table A.6.

Table A.6

Tyre size marking


conventional units


mm



with bias structure


with bias structure

Metric markings 145 R 10C 4.00 254 492 - 147 -145 R 12C 4.00 305 542 - 147 -145 R 13C 4.00 330 566 - 147 -145 R 14C 4.00 356 590 - 147 -145 R 15C 4.00 381 616 - 147 -155 R 12C 4.50 305 550 - 157 -155 R 13C 4.50 330 578 - 157 -155 R 14C 4.50 356 604 - 157 -165 R 13C 4.50 330 596 - 167 -165 R 14C 4.50 356 622 - 167 -165 R 15C 4.50 381 646 - 167 -175 R 13C 5.00 330 608 - 178 -175 R 14C 5.00 356 634 - 178 -175 R 16C 5.00 406 684 - 178 -185 R 13C 5.50 330 624 - 188 -185 R 14C 5.50 356 650 - 188 -185 R 15C 5.50 381 674 - 188 -185 R 16C 5.50 406 700 - 188 -195 R 14C 5.50 356 666 - 198 -195 R 15C 5.50 381 690 - 198 -195 R 16C 5.50 406 716 - 198 -205 R 14C 6.00 356 686 - 208 -205 R 15C 6.00 381 710 - 208 -205 R 16C 6.00 406 736 - 208 -215 R 14C 6.00 356 700 - 218 -215 R 15C 6.00 381 724 - 218 -215 R 16C 6.00 406 750 - 218 -

24

245 R 16C 7.00 406 798 798 248 248 17 R 15C 5.00 381 678 - 178 -17 R 380C 5.00 381 678 - 178 -17 R 400C 150 mm 400 698 - 186 -19 R 400C 150 mm 400 728 - 200 -

Markings with conventional units5.60 R 12C 4.00 305 570 572 150 148 6.40 R 13C 5.00 330 648 640 172 172

6.70 R 13C 5.00 330 660 662 180 180

6.70 R 14C 5.00 356 688 688 180 180

6.70 R 5.00 381 712 714 180 180 15C

A.2.3.1. The “-” sign shall replace letter “R” on tyres with bias structure (e.g.,

145-10C).

A.2.4. The dimensions of tyres for special purpose with radial and bias structure

are listed in table A.7.

Table A.7

Tyre size marking

Width of measuring rim

with conventional units

Nominal rim diameter, d, mm

Outer diameter, D, mm


Markings with conventional units15 x 4 1 /2-8 3.25 203 385 122

16 x 6-8 4.33 203 425 152 18 x 7 4.33 203 462 173

18 x 7-8 4.33 203 462 173 21 x 8-9 6.00 229 535 200 21 x 4 2.32 330 565 113

22 x 4 1/2 3.11 330 595 132 23 x 5 3.75 330 635 155

23 x 9-10 6.50 254 595 225 24 x 7.50-13 6.00 330 597 191

25 x 6 3.75 330 680 170 27 x 8.50-14 7.00 356 674 218 27 x 10-12 8.00 305 690 255

28 x 8.50-15 7.00 381 699 218 28 x 9-15 7.00 381 707 216 29 9.50-15 7.50 381 724 240

30 x 9.50-15 7.50 381 750 240 31 x 10.50-15 8.50 381 775 268 31 x 11.50-15 9.00 381 775 290

25

31 x 13.50-15 11.00 381 775 345 31 x 15.50-15 12.00 381 775 390 32 x 11.50-15 9.00 381 801 290 33 x 12.50-15 10.00 381 826 318 35 x 12.50-15 10.00 381 877 318 37 x 12.50-15 10.00 381 928 318 37 x 14.50-15 12.00 381 928 372

Metric markings200-15 6.50 381 730 205 250-15 7.50 381 735 250 300-15 8.00 381 840 300

A.2.4.1. Letter “R” shall replace the “-” sign on tyres with radial structure (e.g.,

15 x 41/2 R8).

A.3. American truck tyres

A.3.1. The dimensions of radial and bias tyres for light trucks of non-individual

use are listed in table A.8.

Table A.8

Tyre size marking

Code of measuring rim width

Nominal belt diameter, d,

mm



normal winter6.0016LT 4.50 406 732 743 173 6.50-16LT 4.50 406 755 767 182 6.70-16LT 5.00 406 722 733 191 7.00-13LT 5.00 330 647 658 187 7.00-14LT 5.00 356 670 681 187 7.00-15LT 5.50 381 752 763 202 7.00-16LT 5.50 406 778 788 202 7.10-15LT 5.00 381 738 749 199 7.50-15LT 6.00 381 782 794 220 7.50-16LT 6.00 406 808 819 220 8.25-16LT 6.50 406 859 869 241 9.00-16LT 6.50 406 890 903 257 G78-15LT 6.00 381 711 722 212 H78-15LT 6.00 381 727 739 222 L78-15LT 6.50 381 749 760 236 L78-16LT 6.50 406 775 786 236 7-14.5LT* 6.00 368 677 - 185 8-14,5LT* 6.00 368 707 - 203 9-14.5LT * 7.00 368 711 - 241 7-17.5LT 5.25 445 758 769 189 8-17.5LT 5.25 445 788 799 199

26

A.3.1.1. Tyres with radial structure shall be marked with letter “R” instead of the

“-” sign (e.g., 6.00 R 16LT).

A.3.1.2. The factor b for calculating the maximum outer diameter (Dmax) shall be

assumed to be 1.08.

A.3.1.3. The total width of the profile may exceed the value set forth in table A.8

by no more than 8%.

A.3.1.4. In markings of tyre sizes listed in table A.8 with the “*” sign, MH may

be used instead of LT (e.g., 7-14.5 MH).

A.3.2. The dimensions of radial and bias tyres for the light means of

transportation of non-individual use are set forth in table A.9.

Table A.9

Tyre size marking Code of measuring rim width

Nominal rim

diameter, d, mm


Width of profile, S,

mmnormal winter

9-15LT 8.00 381 744 755 254 10-15LT 8.00 381 773 783 264 11-15LT 8.00 381 777 788 279

24 x 7.50-13LT 6 330 597 604 191 27 x 8.50-14LT 7 356 674 680 218 28 x 8.50-15LT 7 381 699 705 218 29 x 9.50-15LT 7.5 381 724 731 240 30 x 9.50-15LT 7.5 381 750 756 240 31 x 10.50-15LT 8.5 381 775 781 268 31 x 11,50-15LT 9 381 775 781 290 31 x 13.50-15LT 11 381 775 781 345 31 x 15.50-15LT 12 381 775 781 390 32 x 11.50-15LT 9 381 801 807 290 33 x 12.50-15LT 10 381 826 832 318 35 x 12.50-15LT 10 381 877 883 318 37 x 12.50-15LT 10 381 928 934 318 37 x 14.50-15LT 12 381 928 934 372

8.00-16.5LT 6.00 419 720 730 203 8.75-16.5LT 6.75 419 748 759 222 9.50-16.5LT 6.75 419 776 787 241 10-16.6LT 8.25 419 762 773 264 12-16.5LT 9.75 419 818 831 307

30 x 9.50-16.5LT 7.50 419 750 761 240 31 x 10.50-16.5LT 8.25 419 775 787 266 33 x 12.50-16.5LT 9.75 419 826 838 315 37 x 12.50-16.5LT 9.75 419 928 939 315

27

37 x 14.50-16.5LT 11.25 419 928 939 365


“-” sign (e.g., 24 x 7.50 R 13LT).


assumed to be 1.07.


by no more than 7%.

A.3.3. The dimensions of bias and radial tyres having the conventional markings

and placed on flat rims or at an angle of 5 are listed in table A.10.

Table A.10

Tyre size marking


conventional units

Nominal rim

diameter, d, mm


normalwith road protective

layer

with thickened protective

layer

winter

6.50-20 5 508 878 - 893 184 7.00-15TR 5.5 381 777 - 792 199

7.00-18 5.5 457 853 - 868 199 7.00-20 5.5 508 904 - 919 199

7.50-15TR 6 381 808 - 825 215 7.50-17 6 432 859 - 876 215 7.50-18 6 457 884 - 901 215 7.50-20 6 508 935 - 952 215

8.25-15TR 6.5 381 847 855 856 236 8.25-20 6.5 508 974 982 992 236

9.00-15TR 7 381 891 904 911 259 9.00-02 7 508 1019 1031 1038 259

10.00-15TR 7.5 381 927 940 946 278 10.00-20 7.5 508 1054 1067 1073 278 10.00-22 7.5 559 1104 1118 1123 278 11.00-20 8 508 1085 1099 1104 293 11.00-22 8 559 1135 1150 1155 293 11.00-24 8 610 1186 1201 1206 293 11.50-20 8 508 1085 1099 1104 296 12.00-20 8.5 508 1125 - 1146 315 12.00-24 8.5 610 1226 - 1247 315 14.00-20 10 508 1241 - 1266 375 14.00-24 10 610 1343 - 1368 375

28


“-” sign (e.g., 6.50 R20).


assumed to be 1.06.


by no more than 6%.

A.3.4. The dimensions of bias and radial tyres with conventional markings for

special use are listed in table A.11.

Table A.11

Tyre size marking

Width of measuring of belt with

conventional units

Nominal belt

diameter, d, mm

Outer diameter, D, mm Width of profile, S,

mmDriving-wheel with

protective layerWith thickened protective layer

10.00-20ML 7.5 508 1073 1099 278 11.00-22ML 8 559 1155 1182 293 13.00-24ML 9 610 1302 - 340 14.00-20ML 10 508 1266 - 375 14.00-24ML 10 610 1368 - 375 15-19.5ML 11.75 495 1019 - 389

24 R 21 18 533 1372 - 610


assumed to be 1.06.


by no more than 8%.

A.3.5. The dimensions of bias and radial tyres having conventional markings and

placed on the rim at an angle of 15 are listed in table A.12.

Table A.12

Tyre size marking


conventional units


mm

Outer diameter, D, mm Width of profile, S,

mmnormal with road

protective layerwith

thickened protective

layer

winter

8-19.5 6.00 495 859 - 876 203 8-22.5 6.00 572 935 - 952 203

29

9-22.5 6.75 572 974 982 992 229 10-22.5 7.50 572 1019 1031 1038 254 11-22.5 8.25 572 1054 1067 1073 279 11-24.5 8.25 622 1104 1118 1123 279 12-22.5 9.00 572 1085 1099 1104 300 12-22.5 9.00 622 1135 1150 1155 300 12-24.5 9.00 572 1085 1099 1104 302

12,5-22.5 9.00 622 1135 1150 1155 302 12,5-24.5 14-17.5 10.50 445 907 - 921 349 (-) 15-19.5 11.75 495 1005 - 1019 389 (-) 15-22.5 11.75 572 1082 - 1095 389 (-)

16,5-22.5 13.00 572 1128 - 1144 425 (-) 18-19.5 14.00 495 1080 - 1096 457 (-) 18-22.5 14.00 572 1158 - 1172 457(-)


“-” sign (e.g., 8 R 19.5).


assumed to be 1.05.


by no more than 6%. The total width of profile defined by the “-” sign may exceed

this value by no more than 5%.

A.3.6. Outer diameters listed in tables A.8-A.12 are intended for use for different

categories of roads (ordinary, winter, special).

30

Appendix B

Tyre capacity indices

B.1. The tyre capacity indices (Li) for passenger vehicle tyres depending on the

weight of the means of transportation (kg) are set forth in table B.1.

Table B.1

Li kg Li kg Li kg Li kg 0 45 31 109 61 257 91 615 1 46.2 32 112 62 265 92 630 2 47.5 33 115 63 272 93 650 3 48.7 34 118 64 280 94 670 4 50 35 121 65 290 95 690 5 51.5 36 125 66 300 96 710 6 53 37 128 67 307 97 730 7 54.5 38 132 68 315 98 750 8 56 39 136 69 325 99 775 9 58 40 140 70 335 100 800 10 60 41 145 71 345 101 825 11 61.5 42 150 72 355 102 850 12 63 43 155 73 365 103 875 13 65 44 160 74 375 104 900 14 67 45 165 75 387 105 925 15 69 46 170 76 400 106 950 16 71 47 175 77 412 107 975 17 73 48 180 78 425 108 1000 18 75 49 185 79 437 109 1030 19 77.5 50 190 80 450 110 1060 20 80 51 195 81 462 111 1090 21 82.5 52 200 82 475 112 1120 22 85 53 206 83 487 113 1150 23 87.5 54 212 84 500 114 1180 24 90 55 218 85 515 115 1215 25 92.5 56 224 86 530 116 1250 26 95 57 230 87 545 117 1285 27 97.5 58 236 88 560 118 1320 28 100 59 243 89 580 119 1360 29 103 60 250 90 600 120 1400 30 106

B.2. The tyre capacity indices (Li) for truck tyres depending on the corresponding

maximum weight (kg), which the tyres are intended to withstand, are set forth in table

B.2.

31

Table B.2

Li Kg Li Kg

60 250 110 1060 61 257 111 1090 62 265 112 1120 63 272 113 1150 64 280 114 1180 65 290 115 1215 66 300 116 1250 67 307 117 1285 68 315 118 1320 69 325 119 1360 70 335 120 1400 71 345 121 1450 72 355 122 1500 73 365 123 1550 74 375 124 1600 75 387 125 1650 76 400 126 1700 77 412 127 1750 78 425 128 1800 79 437 129 1850 80 450 130 1900 81 462 131 1950 82 475 132 2000 83 487 133 2060 84 500 134 2120 85 515 135 2180 86 530 136 2240 87 545 137 2300 88 560 138 2360 89 580 139 2430 90 600 140 2500 91 615 141 2575 92 630 142 2650 93 650 143 2725 94 670 144 2800 95 690 145 2900 96 710 146 3000 97 730 147 3075 98 750 148 3150 99 775 149 3250 100 800 150 3350 101 825 151 3450

32

102 850 152 3550 103 875 153 3650 104 900 154 3750 105 925 155 3875 106 950 156 4000 107 975 157 4125 108 1000 158 4250 109 1030 159 4375 160 4500 180 8000 161 4625 181 8250 162 4750 182 8500 163 4875 183 8750 164 5000 184 9000 165 5150 185 9250 166 5300 186 9500 167 5450 187 9750 168 5600 188 10000 169 5800 189 10300 170 6000 190 10600 171 6150 191 10900 172 6300 192 11200 173 6500 193 11500 174 6700 194 11800 175 6900 195 12150 176 7100 196 12500 177 7300 197 12850 178 7500 198 13200 179 7750 199 13600

200 14000

33

Appendix C

The Change of the Tyre Capacity Index for Truck Tyres

C.1. The change of tyre capacity index of radial and bias tyres for trucks

depending on speed is set forth in table C.1.

Table C.1

Change of tyre capacity, % Speed, km/h All indices of load Load indices ≥122 Load indices <121

Marking of speed category Marking of speed category

Marking of speed category

F G J K L M L M N P 0 +150 +150 +150 +150 +150 +150 +110 +110 +110 +110 5 +110 +110 +110 +110 +110 +110 +90 +90 +90 +90 10 +80 +80 +80 +80 +80 +80 +75 +75 +75 +75 15 +65 +65 +65 +65 +65 +65 +60 +60 +60 +60 20 +50 +50 +50 +50 +50 +50 +50 +50 +50 +50 25 +35 +35 +35 +35 +35 +35 +42 +42 +42 +42 30 +25 +25 +25 +25 +25 +25 +35 +35 +35 +35 35 +19 +19 +19 +19 +19 +19 +29 +29 +29 +29 40 +15 +15 +15 +15 +15 +15 +25 +25 +25 +25 45 +13 +13 +13 +13 +13 +13 +22 +22 +22 +22 50 +12 +12 +12 +12 +12 +12 +20 +20 +20 +20 55 +11 +11 +11 +11 +11 +11 +17.5 +17.5 +17.5 +17.5 60 +10 +10 +10 +10 +10 +10 +15.0 +15.0 +15.0 +15.5 65 +7.5 +8.5 +8.5 +8.5 +8.5 +8.5 +13.5 +13.5 +13.5 +13.5 70 +5.0 +7.0 +7.0 +7.0 +7.0 +7.0 +12.5 +12.5 +12.5 +12.5 75 +2.5 +5.5 +5.5 +5.5 +5.5 +5.5 +11.0 +11.0 +11.0 +11.0 80 0 +4.0 +4.0 +4.0 +4.0 +4.0 +10.0 +10.0 +10.0 +10.0 85 -3 +2.0 +3.0 +3.0 +3.0 +3.0 +8.5 +8.5 +8.5 +8.5 90 -6 0 +2.0 +2.0 +2.0 +2.0 +7.5 +7.5 +7.5 +7.5 95 -10 -2.5 +1.0 +1.0 +1.0 +1.0 +6.5 +6.5 +6.5 +6.5 100 -15 -5 0 0 0 0 +5.0 +5.0 +5.0 +5.0 105 -8 -2 0 0 0 +3.75 +3.75 +3.75 +3.75 110 -13 -4 0 0 0 +2.5 +2.5 +2.5 +2.5 115 -7 -3 0 0 +1.25 +1.25 +1.25 +1.25 120 -12 -7 0 0 0 0 0 0 125 0 -2.5 0 0 0 130 0 -5.0 0 0 0 135 -7.5 -2.5 0 0 140 -10 -5 0 0 145 -7.5 -2.5 0 150 -10.0 -5.0 0 155 -7.5 -2.5

34

160 -10.0 -3.0

C.2. The indices of tyre capacity > 122 and < 121 set forth in table C.1 of these

technical regulations apply to the same conditions of operation.

C.3. No change of tyre capacity is allowed for tyres of speed category marked

with P at speeds higher than 160 km/h.

A maximum permitted speed is set for a given tyre of speed categories Q and

higher corresponding to the marking of the given speed category (see 4.30.2).

35

Appendix D

The Method of Measuring the Tyres

D.1. The method of measuring passenger vehicle tyres

D.1.1. The tyres shall be placed on the measuring rim provided by the

manufacturer during the official approval of the tyre types and inflated up to a

pressure of 3-3.5 bars.

D.1.2. The pressure shall be regulated up to the following values:

1) for standard belted-bias tyres – 1.7 bars;

2) for bias tyres – according to table D.1;

Table D.1

Norm of stratification Pressure, bar Speed category

L, M, N P, Q, R, S T, U, H, V 4 1.7 2.0 -6 2.1 2.4 2.6 8 2.5 2.8 3.0

3) for standard radial tyres – 1.3. bars;

4) for reinforced tyres – 2.3 bars;

5) for T-type spare tyres for temporary use – 4.2 bars.

D.1.3. The tyre shall remain on the rim at a room temperature for at least 24 hours

where the tests are conducted, except for the case defined in paragraph 6.2.3 of these


D.1.4. The pressure shall be regulated according to the values set forth in

paragraph D.1.2.

D.1.5. Taking into account the juts or layers of the protective layer, the overall

width of the tyres shall be measured with compasses in six equally arranged points.

The maximum of the measured values shall be assumed as the overall width.

D.1.6. The outer diameter shall be determined by measuring the maximum length

of the circumference and dividing it by (3.1416).

D.2. The method of measuring truck tyres

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D.2.1. The tyres shall be placed on the measuring rim provided by the

manufacturer during the official approval of the tyre types and inflated up to the

pressure required for measurements, as defined by the manufacturer.

D.2.2. The tyre shall remain on the rim at a room temperature for at least 24

hours.

D.2.3. The pressure shall be regulated according to the values set forth in

paragraph D.2.1.

D.2.4. The steps described in paragraphs D.1.5 and D.1.6 shall be taken.

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Appendix E

The Method of Testing the Strength Depending on the Speed and Load

E.1. Tests for determining the strength of passenger vehicle tyres depending

on the speed and load

E.1.1. Preparation of tyres

E.1.1.1. The new tyres shall be placed on the measuring rim provided by the

manufacturer during the official approval the of tyre types.

E.1.1.2. The tyres shall be inflated up to the pressure value set forth in table E.1

(bars), and T-type spare tyres intended for temporary shall be inflated up to 4.2 bars.

Table E.1

Speed category

Bias tyres Radial tyres Belted-bias tyres

Norm of stratification

Standard Reinforced Standard

4 6 8L, M, N 2.3 2.7 3.0 - - -P, Q, R, S 2.6 3.0 3.3 2.6 3.0 2.6 T, U, H 2.8 3.2 3.5 2.8 3.2 2.8 V 3.0 3.4 3.7 3.0 3.4 -W - - - 3.2 - -W & Y - - - - 3.6 -

E.1.1.3. The manufacturer may require that a pressure different from that

indicated in E.1.1.2 be used, providing a reasonable explanation for the request. In

that case, tyres should be inflated up to the pressure indicated by the manufacturer.

E.1.1.4. The tyre shall remain on the rim at a room temperature where the test is

conducted for at least 3 hours.

E.1.1.5. The pressure of the tyres shall be regulated up to the pressure value

indicated in either paragraph E.1.1.2 or paragraph E.1.1.3.

E.1.2. Testing

E.1.2.1. The tyre affixed to the rim shall be placed on the testing axle and pressed

to the external flat surface of the testing flywheel having a diameter of (1.70+1%) m

or (2.00+1%) m.

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E.1.2.2. The testing axle shall be given a load equal to 80% of the maximum load,

according to the tyre capacity indices relating to:

1) the speed categories L through H;

2) for tyres of speed category V designed for a maximum speed of 240 km/h,

according to paragraph 4.32.2 of these technical regulations;

3) for tyres of speed category W corresponding to a maximum speed of 270 km/h,

according to paragraph 4.32.3 of these technical regulations;

4) for tyres of speed category Y designed for a maximum speed of 300 km/h,

according to paragraph 4.32.4 of these technical regulations.

E.1.2.3. During the tests the pressure in the tyres shall not be regulated and the

testing load shall remain unchanged.

E.1.2.4. During the tests the temperature in the room where the tests are

conducted shall be within the range of 20-30C, or higher, by the manufacturer’s

consent.

E.1.2.5. Strength tests shall be conducted without interruptions, according to the

following indications:

1) Testing speed shall be achieved from zero speed within 10 minutes;

2) The maximum speed intended for the given tyre type minus 40 km/h (in case a

flat flywheel with a diameter of (1.70+1%) m is used) and minus 30 km/h (in case a

flat flywheel with a diameter of (2+1%) m is used) shall be used as the beginning of

the speed test;

3) The degree of speed increase shall be 10 km/h;

4) The duration of testing each speed level, except for the final level, shall be 10

minutes;

5) The duration of the testing the final speed level shall be 20 minutes;

6) While testing the maximum speed, the maximum speed intended for a given

tyre type minus 10 km/h, if a flat flywheel with a diameter of (1.70+1%) m is used, or

equal to the regulated maximum speed, if a flat flywheel with a diameter of (2+1%) m

is used, shall be applied.

7) The duration of testing the first speed level for tyres intended for a maximum

speed of 300 km/h (Y) shall be 20 minutes, and for the final speed level shall be 10

minutes.

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E.1.2.6. If a second test is conducted to evaluate the types of tyres with higher

operating characteristics for a speed higher than 300 km/h, then during the test the

following shall be performed:

1) The testing axle shall be subjected to a load equal to 80% of the maximum load

intended for the maximum speed defined by the manufacturer;

2) Tests shall be conducted without interruptions in the following succession:

a) Within 20 minutes the rotation speed of the tyre shall be accelerated from zero

to the maximum speed defined in the manufacturer’s technical specifications;

b) Then during 5 minutes the test shall be conducted with the maximum speed.

E.2. Tests for determining the strength of truck tyres depending on the speed

and load

E.2.1. Preparation of tyres

E.2.1.1. The new tyres shall be placed on the measuring rim provided by the

manufacturer during the official approval of the tyre types.

E.2.1.2. For testing tyres with an inner tube, a new inner tube including a set of an

inner tube, a valve and a rim belt shall be used (if necessary).

E.2.1.3. The tyre shall be inflated up to the pressure corresponding to the pressure

index defined in the manufacturer’s technical specifications. The relation between the

pressure index and the pressure value is set forth in table E.2.

Table E.2

Pressure index (PSI) Pressurebar kPa

20 1.4 140 25 1.7 170 30 2.1 210 35 2.4 240 40 2.8 280 45 3.1 310 50 3.4 340 55 3.8 380 60 4.1 410 65 4.5 450 70 4.8 480 75 5.2 520 80 5.5 550 85 5.9 590

40

90 6.2 620 95 6.6 660 100 6.9 690 105 7.2 720 110 7.6 760 115 7.9 790 120 8.3 830 125 8.6 860 130 9.0 900 135 9.3 930 140 9.7 970 145 10.0 1000 150 10.3 1030

E.2.1.4. The tyres shall remain on the rim for at least 3 hours at the room

temperature where the tests were conducted.

E.2.1.5. The pressure in the tyre shall be increased up to the value defined in

paragraph E.2.1.3.

E.2.2. Testing

E.2.2.1. Tyres affixed to the rim shall be placed on the testing axle and pressed to

the testing flywheel with an external flat surface having a diameter of (1.70+1%) m,

the width of the surface being at least equal to the width of the tyre’s protective layer.

E.2.2.2. The testing axle is successively subjected to testing loads equal to the

percentages of load indicated in Appendix B of these technical regulations, next to the

tyre capacity indices. If the tyre capacity indices for single and double J tyres are

indicated on the sidewalls of the tyre, then the value intended for a single tyre shall be

chosen as the initial value of the testing load.

1) For tyres having a speed category higher than P and a tyre capacity index equal

to or lower than 121, the testing procedure set forth in paragraph E.2.3 shall be

applied.

2) The testing procedures for the rest types of tyres are defined in table E.3.

Table E.3Load index Tyre speed

category Speed of testing flywheel Load exerted on flywheel

corresponding to load index, %

of radial structure, min-1

of bias structure, min-1

7 hr. 16 hr. 24 hr.

41

122 and higher F 100 100 G 125 100 J 150 125 K 175 150 L 200 -M 225 - 66 84 101

121 and lower F 100 100G 125 125 J 150 150 K 175 175 L 200 175 70 (4 h) 88 (6 h) 106 M 250 200 75 97 114 N 275 - 75 97 114 P 300 - 75 97 114

3) “Special purpose” tyres are tested with a value of speed equal to 85% of the

speed indicated for an equivalent type of ordinary tyres in table E.2.

E.2.2.3. During the tests the pressure in tyres shall not be regulated and the testing

load shall remain unchanged.

E.2.2.4. The temperature in the room where the tests are conducted should be

within the range of 20-30C or, higher, by the consent of the manufacturer.

E.2.2.5. The strength tests shall be conducted without interruptions.

E.2.3. The procedures of testing the strength of tyres of a speed category Q or

higher, and a tyre capacity index equal to or lower than 121.

E.2.3.1. The load of tyres shall be defined in percentage, depending on the load

corresponding to the tyre capacity index:

1) 90% in case of tests on the testing flywheel having a diameter of (1.70+1%) m;

2) 92% in case of tests on the testing flywheel having a diameter of (2.00+1%) m.

E.2.3.2. The recording of the test shall start at a speed equal to the speed category

marking minus 20 km/h.

1) The time of achieving the initial speed shall be 10 minutes;

2) The first stage shall last 10 minutes.

E.2.3.3. For the second test a speed equal to the speed category marking minus 10

km/h shall be defined.


E.2.3.4. The final speed of the test should correspond to the speed indicated on

the speed category marking:

42


E.2.3.5. The test in total shall last 1 hour.

E.2.4. The equivalent testing method

If methods different from those described in paragraphs E.1 and E.2 are used, then

their consistency must be proved.

43

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