Regulation No 90 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers
1. SCOPE
2. DEFINITIONS
2.1. General definitions
2.3.1. ‘Original brake disc/brake drum’
2.3.3. Replacement parts
3. APPLICATION FOR APPROVAL
3.4.1.2. Component description
3.4.2. Conformity of production
3.4.3. Sample quantities and usage
Item No |
Check/test |
Sample number |
Remarks |
|||||
|
|
1 |
2 |
3 |
4 |
5 |
6 |
|
1 |
Geometric check paragraphs 5.3.3.1, 5.3.4.1 |
x |
x |
x |
x |
x |
x |
|
2 |
Material check paragraphs 5.3.3.2, 5.3.4.2 |
x |
x |
|
|
|
|
|
3 |
Balancing provisions check paragraph 5.3.7.2 |
|
|
x |
x |
x |
x |
|
4 |
Wear condition marking check paragraph 5.3.7.3 |
|
|
x |
x |
x |
x |
|
5 |
Integrity test — thermal fatigue paragraphs 4.1.1, 4.2.1 of Annex 11, paragraphs 4.1.1, 4.2.1 of Annex 12 |
|
|
|
x |
x |
|
|
6 |
Integrity test — high load test paragraphs 4.1.2, 4.2.2 of Annex 11, and paragraphs 4.1.2, 4.2.2 of Annex 12 |
|
|
x |
|
|
|
|
7 |
Service brake vehicle performance test paragraph 2.2 of Annex 11, paragraph 2.2 of Annex 12 |
|
|
|
|
|
Pair of discs |
Either front or rear axle |
8 |
Parking brake vehicle performance test paragraph 2.3 of Annex 11, paragraph 2.3 of Annex 12 |
|
|
|
|
|
Pair of discs |
If applicable |
9 |
Service brake dynamometer performance test paragraph 3.3 of Annex 11, paragraph 3.3 of Annex 12 |
|
|
|
|
|
x |
Alternative to vehicle test |
4. APPROVAL
5. SPECIFICATIONS AND TESTS
5.1. General
5.2. Requirements regarding the approval of a replacement brake lining assembly type, a replacement drum brake lining type or a replacement drum brake lining
5.2.1. Performance requirements
5.2.1.1. Replacement brake lining assemblies for vehicles of categories M
1
, M
2
and N
1
5.2.1.2. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories M
3
, N
2
and N
3
5.2.1.3. Replacement brake lining assemblies for vehicles of categories O
1
and O
2
5.2.1.4. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories O
3
and O
4
5.2.1.5. Replacement brake lining assemblies for vehicles of category L
5.2.2. Mechanical characteristics
5.2.2.1. Replacement brake lining assemblies for vehicles of categories M
1
, M
2
, N
1
, O
1
, O
2
, and L
5.2.2.2. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories M
3
, N
2
, N
3
, O
3
, and O
4
5.2.2.2.1. Shear strength
5.2.2.2.2. Compressibility
5.2.2.2.3. Material hardness(5)
5.3. Technical requirements regarding the approval of a replacement brake drum or a replacement brake disc
|
Performance tests according to Regulations Nos 13/13-H (Type-0, I, II, etc.) |
Comparison test with dynamic frictional properties of the original part |
Integrity tests (high load and thermal fatigue) |
Original replacement parts |
No |
No |
No |
Identical parts |
No |
No |
No |
Equivalent parts |
No |
No |
Dynamometer test |
Interchangeable parts |
Vehicle test or alternative dynamometer test |
Vehicle test or alternative dynamometer test |
Dynamometer test |
5.3.1. Original replacement brake discs/drums
5.3.2. Identical brake discs/drums
5.3.3. Equivalent replacement discs or drums
5.3.3.1. Geometric requirements
|
M1, N1, O1, O2 |
M2, M3, N2, N3, O3, O4 |
Thickness variation |
0,015 mm |
0,030 mm |
Cheek thickness variation (for ventilated disc only) |
1,5 mm |
2,0 mm |
Lateral run-out friction surface |
0,050 mm(6) |
0,15 mm(6) |
Location bore variation |
H9 |
H9 |
‘Top hat’ parallelism |
0,100 mm |
0,100 mm |
Location face flatness |
0,050 mm |
0,050 mm |
Friction surface roughness(7) |
3,2 μm |
3,2 μm |
|
M1, N1, O1, O2 |
M2, M3, N2, N3, O3, O4 |
Radial run-out friction surface |
0,050 mm |
0,100 mm |
Location bore variation |
H9 |
H9 |
Ovality |
0,040 mm |
0,150 mm |
Location face flatness |
0,050 mm |
0,050 mm |
Friction surface roughness(8) |
3,5 μm |
3,5 μm |
5.3.3.2. Material and metallurgical requirements
|
Test standard |
Sub-group 1 Base cast iron DIN EN 1561 EN-GJL-200 |
Sub-group 2 Base high carbon EN-GJL-150 |
Sub-group 3 Alloyed high carbon |
Sub-group 4 Unalloyed high carbon |
Carbon content (per cent) |
|
3,20-3,60 |
3,60-3,90 |
3,55-3,90 |
3,60-3,90 |
Silicon content (per cent) |
|
1,70-2,30 |
1,60-2,20 |
1,60-2,20 |
1,60-2,20 |
Manganese content (per cent) |
|
Min 0,40 |
Min 0,40 |
Min 0,40 |
Min 0,40 |
Chromium content (per cent) |
|
Max 0,35 |
Max 0,35 |
0,30-0,60 |
Max 0,25 |
Copper content (per cent) |
|
— |
0,30-0,70 |
0,30-0,70 |
Max 0,40 |
Hardness HBW |
ISO 6506-1:2005 |
190-248 |
160-210 |
180-230 |
160-200 |
Tensile strength (N/mm2) |
ISO 6892:1998 |
Min 220 |
Min 160 |
Min 170 |
Min 150 |
5.3.3.3. Performance requirements
5.3.4. Interchangeable replacement discs or drums
5.3.4.1. Geometric requirements
5.3.4.2. Performance requirements
5.3.5. Type
5.3.5.1. Type criteria for brake discs
5.3.5.1.1. Basic design
5.3.5.1.2. Material group
5.3.5.1.2.1. Cast iron
5.3.5.1.2.2. Steel
5.3.5.1.2.3. Composite materials
5.3.5.1.2.4. Multi-material construction
5.3.5.2. Type criteria for brake drums
5.3.6. Test group criteria (within the same type)
5.3.6.1. Replacement brake discs
5.3.6.1.1. Criteria concerning the formation of test groups with regard to replacement brake discs in vehicles belonging to categories M
1
, M
2
, N
1
, N
2
, O
1
and O
2
5.3.6.1.1.1. Test group relating to the tests stipulated in paragraphs 1 to 4 of Annex 11 or Annex 12
5.3.6.1.2. Criteria concerning the formation of test groups with regard to replacement brake discs in vehicles belonging to categories M
3
, N
3
, O
3
and O
4
5.3.6.1.2.1. Test group relating to the tests stipulated in paragraphs 1 to 4 of Annex 11 or Annex 12
5.3.6.2. Replacement brake drums
5.3.6.2.1. Criteria concerning the formation of test groups with regard to replacement brake drums in vehicles belonging to categories M
1
, M
2
, N
1
, N
2
, O
1
and O
2
5.3.6.2.1.1. Test group relating to the tests stipulated in paragraphs 1 to 4 of Annex 11 or Annex 12
5.3.6.2.2. Criteria concerning the formation of test groups with regard to replacement brake drums in vehicles belonging to categories M
3
, N
3
, O
3
and O
4
5.3.6.2.2.1. Test group relating to the tests stipulated in paragraphs 1 to 4 of Annex 11 or Annex 12
5.3.7. Scope of assessment with regard to replacement brake discs/drums
5.3.7.1. Geometric checks
5.3.7.2. Balancing provision
5.3.7.3. Assessment of the wear condition of the friction surfaces
5.3.7.4. Tests
5.3.8. Test report
6. PACKAGING AND MARKING
6.2. Packaging and marking requirements regarding replacement brake discs or replacement brake drums
6.2.2. Marking
7. MODIFICATIONS AND EXTENSION OF APPROVAL OF REPLACEMENT PARTS
8. CONFORMITY OF PRODUCTION
9. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
10. PRODUCTION DEFINITIVELY DISCONTINUED
11. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF TYPE-APPROVAL AUTHORITIES
12. TRANSITIONAL PROVISIONS
ANNEX 1A
COMMUNICATION
(Maximum format: A4 (210 × 297 mm))
ANNEX 1B
COMMUNICATION
(maximum format: A4 (210 × 297 mm))
ANNEX 2
ARRANGEMENTS OF THE APPROVAL MARK AND APPROVAL DATA
(See paragraph 4.2 of this Regulation)
Example of pad assembly marking
Example of shoe assembly marking
Example of drum brake lining marking
ANNEX 3
REQUIREMENTS FOR REPLACEMENT BRAKE LINING ASSEMBLIES FOR VEHICLES OF CATEGORIES M
1
, M
2
AND N
1
1. Conformance with Regulation No 13 or 13-H
1.1. Vehicle preparation
1.1.1. Test Vehicle
1.1.2. Bedding (burnishing) procedure
1.1.2.1. General conditions
1.1.2.2. Procedure
1.1.2.3. Performance check
1.2.1. Service braking system
1.2.2. Secondary braking system
1.2.3. Parking braking system
2. Additional requirements
2.1. Vehicle test (split axle test)
2.1.1. Cold performance equivalence test
Vehicle category |
Test speed in km/h |
|
Front axle |
Rear axle |
|
M1 |
70 |
45 |
M2 |
50 |
40 |
N1 |
65 |
50 |
2.1.2. Speed sensitivity test
2.2. Inertia dynamometer test
2.2.1. Test equipment
2.2.2. Test conditions
Vehicle category |
Axle portion of maximum vehicle mass |
|
Front |
Rear |
|
M1 |
0,77 |
0,32 |
M2 |
0,69 |
0,44 |
N1 |
0,66 |
0,39 |
|
Rear axle |
Rear axle |
|
Parameter |
Front axle |
Disc brake |
Drum brake |
Number of snubs per cycle |
32 |
32 |
32 |
Brake speed (km/h) |
80 |
80 |
80 |
Release speed (km/h) |
30 |
30 |
30 |
Initial brake temperature (°C) |
< 100 |
< 100 |
< 80 |
Final brake temperature (°C) |
Open |
Open |
Open |
Pressure snub 1 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 2 (kPa) |
3 000 |
3 000 |
3 000 |
Pressure snub 3 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 4 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 5 (kPa) |
2 200 |
2 200 |
2 200 |
Pressure snub 6 (kPa) |
3 800 |
3 800 |
3 800 |
Pressure snub 7 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 8 (kPa) |
2 600 |
2 600 |
2 600 |
Pressure snub 9 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 10 (kPa) |
3 400 |
3 400 |
3 400 |
Pressure snub 11 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 12 (kPa) |
2 600 |
2 600 |
2 600 |
Pressure snub 13 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 14 (kPa) |
2 200 |
2 200 |
2 200 |
Pressure snub 15 (kPa) |
3 000 |
3 000 |
3 000 |
Pressure snub 16 (kPa) |
4 600 |
4 600 |
4 600 |
Pressure snub 17 (kPa) |
2 600 |
2 600 |
2 600 |
Pressure snub 18 (kPa) |
5 100 |
5 100 |
5 100 |
Pressure snub 19 (kPa) |
2 200 |
2 200 |
2 200 |
Pressure snub 20 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 21 (kPa) |
4 200 |
4 200 |
4 200 |
Pressure snub 22 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 23 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 24 (kPa) |
4 600 |
4 600 |
4 600 |
Pressure snub 25 (kPa) |
2 600 |
2 600 |
2 600 |
Pressure snub 26 (kPa) |
1 500 |
1 500 |
1 500 |
Pressure snub 27 (kPa) |
3 400 |
3 400 |
3 400 |
Pressure snub 28 (kPa) |
2 200 |
2 200 |
2 200 |
Pressure snub 29 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 30 (kPa) |
3 000 |
3 000 |
3 000 |
Pressure snub 31 (kPa) |
1 800 |
1 800 |
1 800 |
Pressure snub 32 (kPa) |
3 800 |
3 800 |
3 800 |
Number of cycles |
2 |
2 |
2 |
|
Rear axle |
Rear axle |
|
Parameter |
Front axle |
Disc brake |
Drum brake |
Number of stops per cycle |
10 |
10 |
10 |
Brake speed (km/h) |
100 |
100 |
100 |
Release speed (km/h) |
< 5 |
< 5 |
< 5 |
Deceleration level (g) |
0,4 |
0,4 |
0,4 |
Maximum pressure (kPa) |
16 000 |
16 000 |
10 000 |
Initial temperature 1 (°C) |
< 100 |
< 100 |
< 100 |
Initial temperature 2 (°C) |
< 215 |
< 215 |
< 151 |
Initial temperature 3 (°C) |
< 283 |
< 283 |
< 181 |
Initial temperature 4 (°C) |
< 330 |
< 330 |
< 202 |
Initial temperature 5 (°C) |
< 367 |
< 367 |
< 219 |
Initial temperature 6 (°C) |
< 398 |
< 398 |
< 232 |
Initial temperature 7 (°C) |
< 423 |
< 423 |
< 244 |
Initial temperature 8 (°C) |
< 446 |
< 446 |
< 254 |
Initial temperature 9 (°C) |
< 465 |
< 465 |
< 262 |
Initial temperature 10 (°C) |
< 483 |
< 483 |
< 270 |
Number of cycles |
1 |
1 |
1 |
|
Rear axle |
Rear axle |
|
Parameter |
Front axle |
Disc brake |
Drum brake |
Number of stops per cycle |
18 |
18 |
18 |
Brake speed (km/h) |
80 |
80 |
80 |
Release speed (km/h) |
30 |
30 |
30 |
Pressure (kPa) |
3 000 |
3 000 |
3 000 |
Initial brake temperature (°C) |
< 100 |
< 100 |
< 80 |
Final brake temperature (°C) |
Open |
Open |
Open |
Number of cycles |
1 |
1 |
1 |
2.2.3. Cold performance equivalence test
2.2.4. Speed sensitivity test
ANNEX 4
REQUIREMENTS FOR REPLACEMENT BRAKE LINING ASSEMBLIES AND DRUM BRAKE LININGS FOR VEHICLES OF CATEGORIES M
3
, N
2
AND N
3
1. Vehicle test
1.1. Test vehicle
1.2. Tests and requirements
1.2.1. Conformance with Regulation No 13
1.2.1.1.1. Service braking system
1.2.1.1.1.1. Type-0 test with engine disconnected, vehicle laden
1.2.1.1.1.4. Type-II test
1.2.1.1.2. Secondary braking system
1.2.1.1.3. Parking braking system
1.2.1.1.3.1. Downhill test at 18 per cent gradient, vehicle laden
1.2.2. Additional requirements (split axle test)
1.2.2.1. Cold performance equivalence test
1.2.2.2. Speed sensitivity test
2. Inertia dynamometer test
2.1. Test equipment
2.1.1. Test conditions
2.2. Tests and requirements
2.2.1. Tests derived from Regulation No 13
2.2.1.1. Type-0 test
2.2.1.2. Type-0 test, high speed performance
2.2.1.3. Type-I test
2.2.1.3.1. Heating procedure
2.2.1.3.2. Hot performance
2.2.1.3.3. Recovery
2.2.1.4. Type-II test
2.2.1.4.1. Heating procedure
2.2.1.4.2. Hot performance
2.2.1.5. Static test for parking performance
2.2.2. Cold performance equivalence test
2.2.3. Speed sensitivity test
ANNEX 5
REQUIREMENTS FOR REPLACEMENT BRAKE LINING ASSEMBLIES FOR VEHICLES OF CATEGORIES O
1
AND O
2
1. General
2. Test equipment
2.1. Test conditions
3. Tests and requirements
3.1. Type-0 test
3.2. Type-I test
3.2.1. Heating procedure
3.2.2. Hot performance
3.3. Cold performance equivalence test
ANNEX 6
REQUIREMENTS FOR REPLACEMENT BRAKE LINING ASSEMBLIES AND DRUM BRAKE LININGS FOR VEHICLES OF CATEGORIES O
3
AND O
4
1. Test conditions
2. Tests and requirements
2.1. Conformance with Regulation No 13, Annex 11
2.2. Cold performance equivalence test (Type-0)
ANNEX 7
REQUIREMENTS FOR REPLACEMENT BRAKE LINING ASSEMBLIES FOR VEHICLES OF CATEGORY L
1. Test conditions
2. Tests and requirements
2.1. Conformance with Regulation No 78
2.1.1.1. Type-0 test with engine disconnected
2.1.1.2. Type-0 test with engine connected
2.1.1.3. Type-0 test with wet brakes
2.1.1.4. Type-I test
2.2. Additional requirements
2.2.1. Cold performance equivalence test
2.2.2. Speed sensitivity test
ANNEX 8
Technical prescriptions for replacement brake lining assemblies intended for the use in separate parking brake systems being independent of the vehicle service brake system
1. Compliance with Regulation No 13 or 13-H
1.1. Vehicle test
ANNEX 9
SPECIAL ADDITIONAL PROCEDURES FOR CONFORMITY OF PRODUCTION
PART A
Determination of friction behaviour by machine testing
1. Introduction
2. Replacement brake lining assemblies for vehicles of categories M
1
, M
2
, N
1
, O
1
, O
2
, and L
2.1. Equipment
2.2. Test procedure
2.2.1. Sample preparation
2.2.2. Test schedule
2.2.2.1. Test schedule with constant pressure
2.2.2.1.1. Pad assemblies
No of cycle |
Number of brake applications X |
Initial brake rotor temperature (°C) |
Maximum brake rotor temperature (°C) |
Forced cooling |
1 |
1 × 10 |
≤ 60 |
open |
no |
2-6 |
5 × 10 |
100 |
open (350)(2) |
no |
7 |
1 × 10 |
100 |
open |
yes |
2.2.2.1.2. Shoe assemblies
No of cycle |
Number of brake applications X |
Initial brake rotor temperature (°C) |
Maximum brake rotor temperature (°C) |
Forced cooling |
1 |
1 × 10 |
≤ 60 |
200 |
yes |
2 |
1 × 10 |
100 |
open |
no |
3 |
1 × 10 |
100 |
200 |
yes |
4 |
1 × 10 |
100 |
open |
no |
2.2.2.2. Test schedule with constant torque
No of cycle |
Number of brake applications X |
Initial brake rotor temperature (°C) |
Maximum brake rotor temperature (°C) |
Forced cooling |
1 |
1 × 5 |
≤ 60 |
300-350 (200-250)(3) |
no |
2-4 |
3 × 5 |
100 |
300-350 (200-250) |
no |
5 |
1 × 10 |
100 |
500-600 (300-350) |
no |
6-9 |
4 × 5 |
100 |
300-350 (200-250) |
no |
10 |
1 × 10 |
100 |
500-600 (300-350) |
no |
11-13 |
3 × 5 |
100 |
300-350 (200-250) |
no |
14 |
1 × 5 |
≤ 60 |
300-350 (200-250) |
no |
2.3. Evaluation of test results
2.3.1. Pad assemblies
2.3.2. Shoe assemblies
2.4. Acceptance criteria
3. Brake lining assemblies and drum brake linings for vehicles of categories M
3
, N
2
, N
3
, O
3
, and O
4
3.1. Equipment
3.2. Test procedure
3.2.1. Sample preparation
3.2.2. Test schedule
No of cycle |
Number of brake applications X |
Initial brake rotor temperature (°C) |
Forced cooling |
1 |
5 |
100 |
yes |
2 |
5 |
increasing ≤ 200 |
no |
3 |
5 |
200 |
no |
4 |
5 |
increasing ≤ 300 |
no |
5 |
5 |
300 |
no |
6 |
3 |
250 |
yes |
7 |
3 |
200 |
yes |
8 |
3 |
150 |
yes |
9 |
10 |
100 |
yes |
10 |
5 |
increasing ≤ 300 |
no |
11 |
5 |
300 |
no |
3.3. Evaluation of test results
3.4. Acceptance criteria
PART B
Conformity of production for brake discs and drums
1. Introduction
2. Requirements
2.1. Chemical composition
2.2. Microstructure
2.3. Mechanical properties
2.4. Geometric features
2.5. Acceptance criteria
2.6. Documentation
2.7. Test frequency
ANNEX 10
ILLUSTRATIONS
1. Brake disc design types (examples)
Flat type
Cylinder type
Pot type
Conical type
Double flange type
2. Brake drum (example)
ANNEX 11
REQUIREMENTS FOR REPLACEMENT BRAKE DISCS OR BRAKE DRUMS FOR VEHICLES OF CATEGORIES M AND N
1. Test overview
|
Vehicle test |
Alternative dynamometer test |
||||||||
Performance tests according to Regulations Nos 13/13-H |
|
|
||||||||
|
|
|||||||||
|
|
|||||||||
|
— |
|||||||||
Comparison test with original part |
|
|
||||||||
Integrity tests |
No vehicle test — use dynamometer test |
4.1. Brake discs
4.2. Brake drums
|
|
Vehicle test |
Alternative dynamometer test |
||||||||
Performance tests according to Regulation No 13 |
|
|
||||||||
|
|
|||||||||
|
|
|||||||||
|
— |
|||||||||
Comparison test with original part |
|
|
||||||||
Integrity tests |
No vehicle test — use dynamometer test |
4.1. Brake discs
4.2. Brake drums
|
2. Verification of the vehicle test requirements
2.1. Test vehicle
2.2. Service braking system
2.2.1. Type-0 brake tests, engine disconnected, vehicle laden
2.2.2. Type-0 brake tests, engine connected, vehicle unladen and laden
2.2.3. Type-I brake tests
2.2.4. Type-II brake tests
2.3. Parking braking system (if required)
2.3.2. Static test with 18 per cent gradient, vehicle laden
2.4. Testing the dynamic frictional properties (comparison test conducted on the individual axles)
2.4.1. Performance comparison test when the brakes are cold
Vehicle category |
Test speed in km/h |
|
Front axle |
Rear axle |
|
M1 |
70 |
45 |
M2 |
50 |
40 |
N1 |
65 |
50 |
M3, N2, N3 |
45 |
45 |
3. Inertia dynamometer test
3.1. Equipping the dynamometer
3.2. Test conditions
3.2.1. Inertia mass of the inertia dynamometer
3.2.1.1. Dynamic rolling radius
3.2.1.2. Test mass
[Bild bitte in Originalquelle ansehen] |
|
[Bild bitte in Originalquelle ansehen] |
|
Vehicle category |
Percentage by mass m to be taken into account |
|
X values (front axle) |
Y values (rear axle) |
|
M1 |
77 |
32 |
M2 |
69 |
44 |
N1 |
66 |
39 |
M3, N2, N3 |
55 |
55 |
3.2.3. Cooling
3.2.3.2. Test carried out without a rim
3.2.4. Preparation of the brake
3.2.4.1. Disc brakes
3.2.4.2. Drum brakes
3.3. Alternative dynamometer performance test
1a. |
In the case of vehicles of categories M1, M2, N1 See bedding-in (burnishing) procedure as described in Annex 3, paragraph 2.2.2.3 |
1b. |
In the case of vehicles of categories M3, N2, N3 Bedding-in (burnishing): 100 (disc) or 200 (drum) brake applications Ti = 150 °C (disc) or 100 °C (drum) vi = 60 km/h dm = 1 and 2 m/s2 alternating |
2. |
Dynamic friction properties, see paragraph 3.5.1 of this Annex |
3. |
Brake test Type-0, see paragraph 3.4.1 of this Annex |
4. |
Brake test Type-I, see paragraph 3.4.2 of this Annex |
5. |
Re-burnishing: 10 (disc) or 20 (drum) brake applications Ti = 150 °C (disc) or 100 °C (drum) vi = 60 km/h, dm = 1 and 2 m/s2 alternating |
6. |
Brake test Type-0, see paragraph 3.4.1 of this Annex |
7. |
Brake tests simulation engine connected, see paragraph 3.4.4 of this Annex |
8. |
Re-burnishing: (like item 5) |
9. |
Dynamic friction properties, see paragraph 3.5.1 of this Annex |
10. |
Brake test Type-II (if applicable), see paragraph 3.4.3 of this Annex |
11. |
Re-burnishing: (like item 5) Steps 12 to 19 are optional (if activation is not sufficient) |
12. |
Brake test Type-0, see paragraph 3.4.1 of this Annex |
13. |
Brake test Type-I, see paragraph 3.4.2 of this Annex |
14. |
Re-burnishing: (like item 5) |
15. |
Dynamic friction properties, see paragraph 3.5.1 of this Annex |
16. |
Brake tests simulation engine connected, see paragraph 3.4.4 of this Annex |
17. |
Re-burnishing: (like item 5) |
18. |
Dynamic friction properties, see paragraph 3.5.1 of this Annex |
19. |
Re-burnishing: (like item 5) |
3.4. Service braking system
3.4.1. Brake tests Type-0, vehicle laden
3.4.2. Brake tests Type-I
3.4.3. Brake tests Type-II
3.4.4. Brake tests simulation engine connected
3.5. Testing the dynamic frictional properties (comparison test conducted on the individual wheel brake)
4. Integrity tests using an inertia dynamometer
4.1. Brake discs
4.1.1. Brake disc thermal fatigue test
4.1.1.1. Vehicles of categories M
1
, N
1
4.1.1.1.1. Test conditions (brake disc thermal fatigue test)
4.1.1.1.2. Test programme (brake disc thermal fatigue test)
Test provision |
Thermal fatigue test |
Vehicle categories |
M1, N1 |
Type of braking |
Sequential brake applications |
Braking interval (= ttotal) |
70 s |
Number of brake applications per cycle |
2 |
Brake torque in accordance with a deceleration of |
5,0 m/s2 |
Total number of braking cycles |
100 or 150 (see 4.1.1.1.3) |
Brake applications |
|
from |
vmax |
to |
20 km/h |
Initial temperature of the 1st brake application in each cycle |
≤ 100 °C |
4.1.1.1.3. Test result (brake disc thermal fatigue test)
4.1.1.2. Vehicles of categories M
2
, M
3
, N
2
and N
3
4.1.1.2.1. Test conditions (brake disc thermal fatigue test)
4.1.1.2.1.1. Vehicles with a maximum permissible mass > 7,5 t
Outside disc diameter |
Test parameter |
Test parameter |
Example of equipment |
|
Test mass m (kg) |
rdyn (m) |
‘Brake size’/smallest possible rim size |
320-350 |
3 100 |
0,386 |
17,5″ |
351-390 |
4 500 |
0,445 |
19,5″ |
391-440 |
5 300 |
0,527 |
22,5″ |
> 440(1) |
(1) |
(1) |
— |
4.1.1.2.1.2. Vehicles with a maximum permissible mass > 3,5 t and ≤ 7,5 t
4.1.1.2.2. Test programme (brake disc thermal fatigue test)
‘Bedding-in’ procedure |
100 brake applications Initial speed: 60 km/h Final speed: 30 km/h dm alternating between 1 m/s2 and 2 m/s2 Initial temperature: ≤ 300 °C (beginning at room temperature) |
||
|
10 brake applications from 60 to 30 km/h dm alternating between 1 m/s2 and 2 m/s2 Initial temperature: ≤ 250 °C |
||
|
Two brake applications from 130 to 80 km/h dm 3 m/s2 Initial temperature: ≤ 100 °C |
||
|
See test stage 1 |
||
|
See test stage 2 |
||
|
See test stage 1 |
||
|
Five brake applications at a constant speed of: 85 km/h Decelerating torque corresponding to 0,5 m/s2 Braking period 60 s Initial temperature: ≤ 80 °C |
||
|
See test stage 1 |
||
|
Five brake applications at a constant speed of: 85 km/h Decelerating torque corresponding to 1,0 m/s2 Braking period 40 s Initial temperature: ≤ 80 °C |
||
|
Nine or 14 times (whichever is applicable) — see paragraph 4.1.1.2.3 |
4.1.1.2.3. Test result (brake disc thermal fatigue test)
4.1.2. Brake disc high load test
4.1.2.1. Vehicles of categories M
1
, N
1
4.1.2.1.1. Test conditions (brake disc high load test)
4.1.2.1.2. Test programme (brake disc high load test)
Test provision |
High load test |
Vehicle categories |
M1, N1 |
Type of braking |
Single brake applications |
Number of brake applications |
70 |
Initial temperature at the beginning of braking |
≤ 100 °C |
Brake torque in accordance with |
10,0 m/s2 (however, brake pressure p ≤ 16 000 kPa) |
Brake applications |
|
from |
vmax |
to |
10 km/h |
4.1.2.1.3. Test result (brake disc high load test)
4.1.2.2. Vehicles of categories M
2
, M
3
, N
2
and N
3
4.1.2.2.1. Test conditions (brake disc high load test)
4.1.2.2.2. Test programme (brake disc high load test)
4.1.2.2.3. Test result (brake disc high load test)
4.2. Brake drums
4.2.1. Brake drum thermal fatigue test
4.2.1.1. Vehicles of categories M
1
and N
1
4.2.1.1.1. Test conditions (brake drum thermal fatigue test)
4.2.1.1.2. Test programme (brake drum thermal fatigue test)
4.2.1.1.3. Test result (brake drum thermal fatigue)
4.2.1.2. Vehicles of categories M
2
, M
3
, N
2
, N
3
4.2.1.2.1. Test conditions (brake drum thermal fatigue test)
4.2.1.2.1.1. Vehicles with a maximum permissible mass > 7,5 t
Inner drum diameter (mm) |
Lining width |
Typical rim diameter |
|||||
< 130 mm |
130-190 mm |
> 190 mm |
|||||
Test mass (kg) |
Tyre radius (m) |
Test mass (kg) |
Tyre radius (m) |
Test mass (kg) |
Tyre radius (m) |
||
< 330 |
2 750 |
0,402 |
3 200 |
0,390 |
5 500 |
0,402 |
17,5″ |
330-390 |
(2) |
(2) |
3 400 |
0,480 |
5 500 |
0,516 |
19,5″ |
391-430 |
3 400 |
0,510 |
4 500 |
0,527 |
5 500 |
0,543 |
22,5″ |
> 430 |
(2) |
(2) |
(2) |
(2) |
(2) |
(2) |
— |
4.2.1.2.1.2. Vehicles with a maximum permissible mass > 3,5 t and ≤ 7,5 t
4.2.1.2.2. Test programme (brake drum thermal fatigue test)
Test provision |
Thermal fatigue test |
Type of braking |
Sequential brake applications |
Number of brake applications |
250 or 300 (whichever is applicable) — see paragraph 4.2.1.2.3. NB: the test is interrupted when a through crack appears. |
Brake torque in accordance with |
3,0 m/s2 |
Brake applications |
|
from |
130 |
to |
80 km/h |
Initial temperature of each brake application |
≤ 50 °C |
Cooling pursuant to paragraph 3.2.3. |
permitted |
4.2.1.2.3. Test result (brake drum thermal fatigue)
4.2.2. Brake drum high load test
4.2.2.1. Vehicles of categories M
1
and N
1
4.2.2.1.1. Test conditions (brake drum high load test)
4.2.2.1.2. Test programme (brake drum high load test)
‘Bedding-in’ procedure |
Make 100 consecutive snub applications with v1 = 80 km/h and v2 = 10 km/h and an initial temperature of ≤ 100 °C. The deceleration of the first application shall be constant 1,5 m/s2. From the second up to the last application the pressure shall be constant and equivalent to the average of the first application. The bedding should be continued until a minimum of 80 per cent lining to drum contact is achieved. |
Test provision |
Brake drum high load test |
Type of braking |
Single brake applications |
Number of brake applications |
100 |
Initial temperature at the beginning of braking |
≤ 100 °C |
Brake torque in accordance with |
10,0 m/s2 (however, brake pressure p ≤ 16 000 kPa) |
Brake applications |
|
from |
vmax |
to |
10 km/h |
4.2.2.1.3. Test result (brake drum high load test)
4.2.2.2. Vehicles of categories M
2
, M
3
, N
2
and N
3
4.2.2.2.1. Test conditions (brake drum high load test)
4.2.2.2.2. Test programme (brake drum high load test)
Test provision |
High load test |
Type of braking |
Braking to less than 5 km/h |
Total number of brake applications |
150 |
Initial brake drum temperature at each brake application |
≤ 100 °C |
Brake applications |
|
from |
60 km/h |
to |
≤ 5 km/h |
Brake torque in accordance with a |
6 m/s2 |
Cooling (also deviating from paragraph 3.2.3 of this Annex) |
permitted |
4.2.2.2.3. Test result (brake drum high load test)
ANNEX 12
REQUIREMENTS FOR REPLACEMENT BRAKE DISCS/DRUMS FOR VEHICLES OF CATEGORY O
1. Test overview
Track test |
Alternative dynamometer test (alternative to track test) |
||||
|
|
||||
|
|
||||
|
— |
||||
|
|
Track test |
Alternative dynamometer test (alternative to track test) |
||||
|
|
||||
|
|
||||
|
— |
||||
|
|
2. Verification of the vehicle test requirements
2.1. Test vehicle
2.2. Service braking system
2.2.1. Type-0 brake tests, vehicle laden
2.2.2. Type-I brake tests
2.2.3. Type-III brake tests
2.3. Parking braking system (if applicable)
2.3.2. Static test with 18 per cent gradient, vehicle laden
2.4. Testing the dynamic frictional properties (comparison test conducted on the individual axles)
2.4.1. Performance comparison test when the brakes are cold
3. Inertia dynamometer test
3.1. Equipment of the dynamometer
3.2. Test conditions
3.2.1. Inertia mass of the inertia dynamometer
3.2.1.1. Dynamic rolling radius
3.2.1.2. Test mass
[Bild bitte in Originalquelle ansehen] |
|
3.2.3. Cooling
3.2.3.2. Test carried out without a rim
3.2.4. Preparation of the brake
3.2.4.1. Disc brakes
3.2.4.2. Drum brakes
3.3. Alternative dynamometer performance test
1. |
Cold bedding-in (cold burnishing): 100 (disc) or 200 (drum) brake applications
|
|||||||||
2. |
Dynamic friction properties, see paragraph 3.5.1 of this Annex |
|||||||||
3. |
Hot bedding-in (Hot burnishing): Make 30 consecutive snub applications with v1 = 60 km/h and v2 = 30 km/h with a cycle time of 60 s starting at a brake temperature of ≤ 100 °C at the first application. The deceleration of the first application shall be constant 3 m/s2. From the second up to the last application the pressure shall be constant and equivalent to the average of the first application. |
|||||||||
4. |
Re-burnishing: 30 brake applications
|
|||||||||
5. |
Brake test Type-0, see paragraph 3.4.1 of this Annex |
|||||||||
6. |
Brake test Type-I (in the case of O2/O3), see paragraph 3.4.2 of this Annex |
|||||||||
7. |
Re-burnishing: (like item 4) |
|||||||||
8. |
Brake test Type-0, see paragraph 3.4.1 of this Annex |
|||||||||
9. |
Brake test Type-III (in the case of O4), see paragraph 3.4.3 of this Annex |
|||||||||
10. |
Re-burnishing: (like item 4) |
3.4. Service braking system
3.4.1. Brake tests Type-0, vehicle laden
3.4.2. Brake tests Type-I
3.4.3. Brake tests Type-III
3.5. Testing the dynamic frictional properties (comparison test conducted on the individual wheel brake)
4. Integrity tests using an inertia dynamometer
4.1. Brake discs
4.1.1. Brake disc thermal fatigue test
4.1.1.1. Vehicles of categories O
1
and O
2
4.1.1.1.1. Test conditions (brake disc thermal fatigue)
4.1.1.1.2. Test programme (brake disc thermal fatigue)
Test provision |
Thermal fatigue test |
Vehicle categories |
O1, O2 |
Type of braking |
Sequential brake applications |
Braking interval (= ttotal) |
70 s |
Number of brake applications per cycle |
2 |
Brake torque in accordance with a (m/s2) |
5,0 |
Total number of braking cycles |
100 or 150 (see paragraph 4.1.1.1.3) |
Brake applications |
|
from |
80 km/h |
to |
20 km/h |
Initial temperature of the 1st brake application in each cycle |
≤ 100 °C |
4.1.1.1.3. Test result (brake disc thermal fatigue test)
4.1.1.2. Vehicles of categories O
3
and O
4
4.1.1.2.1. Test conditions (brake disc thermal fatigue test)
4.1.1.2.1.1. Vehicles with a maximum permissible mass > 7,5 t
Outside disc diameter |
Test parameter |
Test parameter |
Example of equipment |
Test mass m (kg) |
rdyn (m) |
‘Brake size’/smallest possible rim size |
|
320-350 |
3 100 |
0,386 |
17,5″ |
351-390 |
4 500 |
0,445 |
19,5″ |
391-440 |
5 300 |
0,527 |
22,5″ |
> 440(1) |
(1) |
(1) |
— |
4.1.1.2.1.2. Vehicles with a maximum permissible mass > 3,5 t and ≤ 7,5 t
4.1.1.2.2. Test programme (brake disc thermal fatigue test)
‘Bedding-in’ procedure |
100 brake applications Initial speed: 60 km/h Final speed: 30 km/h dm alternating between 1 m/s2 und 2 m/s2 Initial temperature: ≤ 300 °C (beginning at room temperature) |
||
|
10 brake applications from 60 to 30 km/h dm alternating between 1 m/s2 und 2 m/s2 Initial temperature: ≤ 250 °C |
||
|
Two brake applications from 130 to 80 km/h dm = 3 m/s2 Initial temperature: ≤ 100 °C |
||
|
See test stage 1 |
||
|
See test stage 2 |
||
|
See test stage 1 |
||
|
Five brake applications at a constant speed of: 85 km/h Decelerating torque corresponding to 0,5 m/s2 Braking period 60 s Initial temperature: ≤ 80 °C |
||
|
see test stage 1 |
||
|
Five brake applications at a constant speed of: 85 km/h Decelerating torque corresponding to 1,0 m/s2 Braking period 40 s Initial temperature: ≤ 80 °C |
||
|
Nine or 14 times (whichever is applicable) — see paragraph 4.1.1.2.3 |
4.1.1.2.3. Test result (brake disc thermal fatigue test)
4.1.2. Brake disc high load test
4.1.2.1. Vehicles of categories O
1
and O
2
4.1.2.2. Vehicles of categories O
3
and O
4
4.1.2.2.1. Test conditions (brake disc high load test)
4.1.2.2.2. Test programme (brake disc high load test)
4.1.2.2.3. Test result (brake disc high load test)
4.2. Brake drums
4.2.1. Brake drum thermal fatigue test
4.2.1.1. Vehicles of categories O
1
and O
2
4.2.1.1.1. Test conditions (brake drum thermal fatigue test)
4.2.1.1.1.1. Vehicles with a maximum permissible axle load ≤ 1 200 kg
4.2.1.1.1.2. Vehicles with a maximum permissible axle load > 1 200 kg
4.2.1.1.2. Test programme (brake drum thermal fatigue test)
Test provision |
Thermal fatigue test |
Type of braking |
Sequential brake applications |
Number of brake applications |
250 or 300 (whichever is applicable) — see 4.2.1.1.3. NB: the test is interrupted when a through crack appears. |
Brake torque set to produce a deceleration of |
3,0 m/s2 |
Brake applications |
|
from |
130 |
to |
80 km/h |
Initial temperature of each brake application |
≤ 50 °C |
Cooling pursuant to 3.2.3. |
permitted |
4.2.1.1.3. Test result (brake drum thermal fatigue test)
4.2.1.2. Vehicles of categories O
3
and O
4
4.2.1.2.1. Test conditions (brake drum thermal fatigue test)
4.2.1.2.1.1. Vehicles with a maximum permissible mass > 7,5 t
Inner drum diameter (mm) |
Lining width |
Typical rim diameter |
|||||
< 130 mm |
130-190 mm |
> 190 mm |
|||||
Test mass (kg) |
Tyre radius (m) |
Test mass (kg) |
Tyre radius (m) |
Test mass (kg) |
Tyre radius (m) |
||
< 330 |
2 750 |
0,402 |
3 200 |
0,390 |
5 500 |
0,402 |
17,5″ |
330-390 |
(2) |
(2) |
3 400 |
0,480 |
5 500 |
0,516 |
19,5″ |
391-430 |
3 400 |
0,510 |
4 500 |
0,527 |
5 500 |
0,543 |
22,5″ |
> 430 |
(2) |
(2) |
(2) |
(2) |
(2) |
(2) |
— |
4.2.1.2.1.2. Vehicles with a maximum permissible mass > 3,5 t and ≤ 7,5 t
4.2.1.2.2. Test programme (brake drum thermal fatigue test)
Test provision |
Thermal fatigue test |
Type of braking |
Sequential brake applications |
Number of brake applications |
250 or 300 (whichever is applicable) — see 4.2.1.2.3. NB: the test is interrupted when a through crack appears. |
Brake torque set to produce a deceleration of |
3,0 m/s2 |
Brake applications |
|
from |
130 |
to |
80 km/h |
Initial temperature of each brake application |
≤ 50 °C |
Cooling pursuant to paragraph 3.2.3 |
permitted |
4.2.1.2.3. Test result (brake drum thermal fatigue test)
4.2.2. Brake drum high load test
4.2.2.1. Vehicles of categories O
1
and O
2
4.2.2.1.1. Test conditions (brake drum high load test)
4.2.2.1.2. Test programme (brake drum high load test)
4.2.2.1.3. Test result (brake drum high load test)
4.2.2.2. Vehicles of categories O
3
and O
4
4.2.2.2.1. Test conditions (brake drum high load test)
4.2.2.2.2. Test programme (brake drum high load test)
Test provision |
High load test |
Type of braking |
Braking to standstill |
Total number of brake applications |
150 |
Initial temperature of the brake drum every time the brake is operated |
≤ 100 °C |
Brake applications |
|
from |
60 km/h |
to |
0 km/h |
Brake torque set to produce a deceleration of |
6 m/s2 |
Cooling (also deviating from paragraph 3.2.3) |
permitted |
4.2.2.2.3. Test result (brake drum high load test)
ANNEX 13
MODEL TEST REPORT FOR A REPLACEMENT BRAKE DISC/DRUM
1. General technical description of a replacement brake disc/drum(1)
|
Identification |
Location of marking |
Method of marking |
Manufacturer name or trade name: |
|
|
|
Approval number |
E2-90R02 Cxxxx/yyyy |
|
|
|
xxxx => Type No yyyy => Variant No |
||
Indication for traceability |
|
|
|
Minimum thickness (disc)/maximum inside diameter (drum) (1) |
|
|
|
1.7. Material
1.8. Application range
Part |
|||
Replacement part |
Original part |
||
Variant |
Part number |
Part number |
Identification code |
|
|
|
|
Motor-vehicle (2) |
|||||
Make |
Type of vehicle |
Trade name |
Maximum Gross weight |
Maximum speed |
Year of manufacture |
|
|
|
|
|
|
Axle for trailers (2) |
|||||
Make |
Type of axle |
Trade name |
Maximum axle load |
Range of dynamic tyre radius (largest/smallest) |
|
|
|
|
|
|
|
Brake |
||||
Position |
Calliper (2) |
Dimensions |
Type of construction |
|
Front |
Rear |
|||
|
|
|
|
|
1.9. Additional information(2)
2. Test groups
2.1. Dimensions per test group
2.2. Highest ratio of kinetic energy per test group in according to paragraph 5.3.6 of Regulation No 90
3. Technical data regarding the tests per test group
3.1. Vehicle test
3.1.1. Data of the test vehicle
3.1.1.11. Test masses
3.1.1.12.2. Brake calliper/Brake drum mechanism(1)
3.1.1.12.3. Brake pad/Brake lining(1)
3.1.2. Test equipment
3.1.3. Test track:
3.2. Dynamometer test
3.2.1. Test data
3.2.1.2. Dynamic rolling radius
3.2.1.3. Masses and inertia
3.2.1.4. Cooling …
3.2.1.5. Speed
3.2.1.6. Actuation device
3.2.1.7. Brake
3.2.1.7.1. Test sample brake disc/Brake drum(1)
3.2.1.7.2. Brake calliper/Brake drum mechanism(1)
3.2.1.7.3. Brake pad/Brake lining(1)
4. Record of test results
4.5.1. Brake performance
4.5.1.1. Service brake performance in the case of categories M, N(2)
|
0 disconnected (2) |
0 Connected |
I |
||
No of sample |
|
|
|
|
|
Annex 11, paragraph: |
2.2.1/3.4.1 (1) |
2.2.2/3.4.4 (1) |
2.2.3/3.4.2 (1) |
|
|
Test speed |
|
|
|
|
|
Initial |
km/h |
|
|
|
|
Final |
km/h |
|
|
|
|
Brake chamber pressure pe |
kPa |
|
|
|
|
Number of applications |
— |
|
|
|
|
Duration of one brake cycle |
s |
|
|
|
|
Brake force 0,5 · Te |
daN |
|
|
|
|
Braking ratio 0,5 · Te/9,81 · m (m = Test mass) |
— |
|
|
|
|
Brake chamber stroke se |
mm |
|
|
|
|
Threshold torque at the brake lever |
|
|
|
|
|
Ce |
Nm |
||||
C0,e |
Nm |
4.5.1.2. Service brake performance in the case of categories M
2
, M
3
, N
2
, N
3
(2)
Test type |
0 |
II |
||
No of sample |
|
|
|
|
Annex 11, paragraph: |
2.2.1/3.4.1 (1) |
2.2.4/3.4.3 (1) |
|
|
Test speed |
|
|
|
|
Brake chamber pressure pe |
kPa |
|
|
|
Number of applications |
— |
|
|
|
Duration of one brake cycle |
s |
|
|
|
Brake force 0,5 · Te |
daN |
|
|
|
Braking ratio 0,5 · Te/9,81 · m (m = Test mass) |
— |
|
|
|
Brake chamber stroke se |
mm |
|
|
|
Threshold torque at the brake lever |
|
|
|
|
Ce |
Nm |
|||
C0,e |
Nm |
4.5.1.3. Service brake performance in the case of categories O
1
, O
2
, O
3
(2)
Test type |
0 |
I |
||
No of sample |
|
|
|
|
Annex 12, paragraph: |
2.2.1/3.4.1 (1) |
2.2.2/3.4.2 (1) |
|
|
Test speed |
|
|
|
|
Brake chamber pressure pe |
kPa |
|
|
|
Number of applications |
— |
|
|
|
Duration of one brake cycle |
s |
|
|
|
Brake force 0,5Te |
daN |
|
|
|
Braking ratio 0,5Te / 9,81 · m (m = Test mass) |
— |
|
|
|
Brake chamber stroke se |
mm |
|
|
|
Threshold torque at the brake lever |
|
|
|
|
Ce |
Nm |
|||
C0,e |
Nm |
4.5.1.4. Service brake performance in the case of categories O
4
(2)
Test type |
0 |
III |
||
No of sample |
|
|
|
|
Annex 12, paragraph: |
2.2.1/3.4.1 (1) |
2.2.3/3.4.3 (1) |
|
|
Test speed |
|
|
|
|
Initial |
km/h |
|
|
|
Final |
km/h |
|
|
|
Brake chamber pressure pe |
kPa |
|
|
|
Number of applications |
— |
|
|
|
Duration of one brake cycle |
s |
|
|
|
Brake force 0,5Te |
daN |
|
|
|
Braking ratio 0,5Te / 9,81 · m (m = Test mass) |
— |
|
|
|
Brake chamber stroke se |
mm |
|
|
|
Threshold torque at the brake lever |
|
|
|
|
Ce |
Nm |
|||
C0,e |
Nm |
4.5.1.6. Dynamic friction properties diagram: deceleration vs pressure
Sample No |
Cycles without damage in accordance with Annex 11: paragraphs 4.1.1.1.3/4.1.1.2.3/4.2.1.2.3 Annex 12: paragraphs 4.1.1.1.3/4.1.1.2.3/4.2.1.1.3/4.2.1.2.3 (1) |
|
|
|
|
Sample No |
Cycles without damage in accordance with Annex 11: paragraphs 4.1.2.1.3/4.1.2.2.3/4.2.2.1.3/4.2.2.2.3 Annex 12: paragraphs 4.1.2.2.3/4.2.2.1.3/4.2.2.2.3 (1) |
|
|
|
|