Regulation No 90 of the Economic Commission for Europe of the United Nations ... (42010X0528(02))
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 and drum brake linings for power-driven vehicles and their trailers
- 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 and drum brake linings for power-driven vehicles and their trailers
- 1. SCOPE
- 2. DEFINITIONS
- 3. APPLICATION FOR APPROVAL
- 4. APPROVAL
- 5. SPECIFICATIONS AND TESTS
- 5.1. General
- 5.2. Performance requirements
- 5.2.1. Replacement brake lining assemblies for vehicles of categories M
- 1
- , M
- 2
- and N
- 1
- 5.2.2. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories M
- 3
- , N
- 2
- and N
- 3
- 5.2.3. Replacement brake lining assemblies for vehicles of categories O
- 1
- and O
- 2
- 5.2.4. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories O
- 3
- and O
- 4
- 5.2.5. Replacement brake lining assemblies for vehicles of category L
- 5.3. Mechanical characteristics
- 5.3.1. Replacement brake lining assemblies for vehicles of categories M
- 1
- , M
- 2
- , N
- 1
- , O
- 1
- ,O
- 2
- , and L
- 5.3.2. Replacement brake lining assemblies and replacement drum brake linings for vehicles of categories M
- 3
- , N
- 2
- , N
- 3
- , O
- 3
- , and O
- 4
- 5.3.2.1. Shear strength
- 5.3.2.2. Compressibility
- 5.3.2.3. Material hardness(6)
- 6. PACKAGING AND MARKING
- 7. MODIFICATIONS AND EXTENSION OF APPROVAL OF THE REPLACEMENT BRAKE LINING ASSEMBLY OR THE REPLACEMENT DRUM BRAKE LINING
- 8. CONFORMITY OF PRODUCTION
- 9. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
- 10. PRODUCTION DEFINITELY DISCONTINUED
- 11. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
- 12. TRANSITIONAL PROVISIONS
- ANNEX 1
- COMMUNICATION
- (Maximum format: A4 (210 × 297 mm))
- ANNEX 2
- ARRANGEMENTS OF THE APPROVAL MARK AND APPROVAL DATA
- (See paragraph 4.7 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
- 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
- 1.2.1.1. Type-0 test with engine disconnected, vehicle laden
- 1.2.1.2. Type-0 test with engine connected, vehicle unladen and laden, according to Regulation No 13, Annex 4, paragraphs 1.4.3.1 (stability test) and 1.4.3.2 (only the test with initial speed v = 0,8 v
- max
- )
- 1.2.1.3. Type-I test
- 1.2.2. Secondary braking system
- 1.2.2.1. Type-0 test with engine disconnected, vehicle laden (this test may be omitted in cases where it is obvious that the requirements are met, e.g. diagonal split braking system)
- 1.2.3. Parking braking system
- 1.2.3.1. Downhill test at 18 per cent gradient, vehicle laden
- 2. Additional requirements
- 2.1. Vehicle test (split axle test)
- 2.1.1. Cold performance equivalence test
- 2.1.2. Speed sensitivity test
- 2.2. Inertia dynamometer test
- 2.2.1. Test equipment
- 2.2.2. Test conditions
- 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
- 1.2.2. 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
- 1.1. Vehicle test
- ANNEX 9
- 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
- 2.2.2.1.2. Shoe assemblies
- 2.2.2.2. Test schedule with constant torque
- 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
- 3.3. Evaluation of test results
- 3.4. Acceptance criteria
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