INHALT

Regulation No 110 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) in their propulsion system; II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) in their propulsion system

Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at: http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html.
Regulation No 110 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of:
Addendum 109: Regulation No 110
1. SCOPE
2. DEFINITION AND CLASSIFICATION OF COMPONENTS
Fig. 1-1
Flow scheme for CNG components classification
PART I
APPROVAL OF SPECIFIC COMPONENTS OF MOTOR VEHICLES USING COMPRESSED NATURAL GAS (CNG) IN THEIR PROPULSION SYSTEM
3. APPLICATION FOR APPROVAL
4. MARKINGS
5. APPROVAL
6. SPECIFICATIONS REGARDING CNG COMPONENTS
6.1. General provisions
6.2. Provisions regarding containers
6.3. Provisions regarding components fitted to the container
7. MODIFICATIONS OF A TYPE OF CNG COMPONENT AND EXTENSION OF APPROVAL
9. CONFORMITY OF PRODUCTION
10. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
12. PRODUCTION DEFINITELY DISCONTINUED
13. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
PART II
APPROVAL OF VEHICLES WITH REGARD TO THE INSTALLATION OF SPECIFIC COMPONENTS OF AN APPROVED TYPE FOR THE USE OF COMPRESSED NATURAL GAS (CNG) IN THEIR PROPULSION SYSTEM
14. DEFINITIONS
15. APPLICATION FOR APPROVAL
16. APPROVAL
17. REQUIREMENTS FOR THE INSTALLATION OF SPECIFIC COMPONENTS FOR THE USE OF COMPRESSED NATURAL GAS IN THE PROPULSION SYSTEM OF A VEHICLE
17.1. General
17.2. Further requirements
17.3. The CNG system
17.4. Installation of the container
17.5. Accessories fitted to the container(s) or cylinder(s)
17.6. Rigid and flexible fuel lines
17.7. Fitting or gas connections between the components
17.8. Automatic valve
17.9. Filling unit or receptacle
17.10. Fuel selection system and electrical installation
18. CONFORMITY OF PRODUCTION
19. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
20. MODIFICATION AND EXTENSION OF APPROVAL OF A VEHICLE TYPE
21. PRODUCTION DEFINITELY DISCONTINUED
22. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
ANNEX 1A
ESSENTIAL CHARACTERISTICS OF THE CNG COMPONENT
ANNEX 1B
ESSENTIAL CHARACTERISTICS OF THE VEHICLE, ENGINE AND CNG-RELATED SYSTEM
ANNEX 2A
ARRANGEMENT OF THE CNG COMPONENT TYPE-APPROVAL MARK
(See paragraph 5.2. of this Regulation)
ANNEX 2B
COMMUNICATION
Addendum
ANNEX 2C
ARRANGEMENT OF APPROVAL MARKS
MODEL A
(See paragraph 16.2. of this Regulation)
MODEL B
(See paragraph 16.2. of this Regulation)
ANNEX 2D
COMMUNICATION
ANNEX 3
GAS CYLINDERS HIGH PRESSURE CYLINDER FOR THE ON-BOARD STORAGE OF NATURAL GAS AS A FUEL FOR AUTOMOTIVE VEHICLES
1. SCOPE
2. REFERENCES
ASTM Standards(1)
BSI Standards(2)
ISO Standards(3)
NACE Standard(4)
3. DEFINITIONS
4. SERVICE CONDITIONS
4.1. General
4.2. Maximum pressures
4.3. Maximum number of filling cycles
4.4. Temperature range
4.5. Gas composition
4.6. External surfaces
4.7. Gas permeation or leakage
5. DESIGN APPROVAL
5.1. General
5.2. Statement of service
5.3. Design data
5.4. Manufacturing data
5.6. Fracture performance and NDE defect size
5.7. Specification sheet
5.8. Additional supporting data
5.9. Approval and certification
6. REQUIREMENTS APPLICABLE TO ALL CYLINDER TYPES
6.1. General
6.2. Design
6.3. Materials
6.4. Test pressure
6.5. Burst pressures and fibre stress ratios
6.6. Stress analysis
6.7. Leak-before-break (LBB) assessment
6.8. Inspection and testing
6.9. Fire protection
6.10. Openings
6.11. Cylinder supports
6.12. Exterior environmental protection
6.13. Design qualification tests
6.14. Batch tests
6.15. Production examinations and tests
6.16. Failure to meet test requirements
6.17. Change of design
7. TYPE CNG-1 METAL CYLINDERS
7.1. General
7.2. Stress analysis
7.3. Manufacturing and production test requirements
7.4. Cylinder batch tests
7.5. Cylinder design qualification tests
8. TYPE CNG-2 HOOP-WRAPPED CYLINDERS
8.1. General
8.2. Design requirements
8.3. Manufacturing requirements
8.4. Production test requirements
8.5. Cylinder batch tests
8.6. Cylinder design qualification tests
9. TYPE CNG-3 FULLY-WRAPPED CYLINDERS
9.1. General
9.2. Design requirements
9.3. Manufacturing requirements
9.4. Production test requirements
9.5. Cylinder batch tests
9.6. Cylinder design qualification tests
10. TYPE CNG-4 ALL-COMPOSITE CYLINDERS
10.1. General
10.2. Design requirements
10.3. Stress analysis
10.4. Manufacturing requirements
10.5. Production test requirements
10.6. Cylinder batch tests
10.7. Cylinder design qualification tests
11. MARKING
11.1. Provision of marking
12. PREPARATION FOR DISPATCH
Appendix A
TEST METHODS
A.1. Tensile tests, steel and aluminium
A.2. Impact test, steel cylinders and steel liners
A.3. Sulphide stress cracking test for steel
A.4. Corrosion tests, aluminium
A.5. Sustained load cracking tests, aluminium
A.6. Leak-Before-Break (LBB) performance test
A.7. Extreme temperature pressure cycling
A.8. Brinell hardness test
A.10. Leak test
A.11. Hydraulic test
A.12. Hydrostatic pressure burst test
A.13. Ambient temperature pressure cycling
A.14. Acid environment test
A.15. Bonfire test
A.16. Penetration tests
A.17. Composite flaw tolerance tests
A.18. High temperature creep test
A.19. Accelerated stress rupture test
A.20. Impact damage test
A.21. Permeation test
A.22. Tensile properties of plastics
A.23. Melting temperature of plastics
A.24. Pressure relief device requirements
A.25. Boss torque test
A.26. Resin shear strength
A.27. Natural gas cycling test
A.28. Manual valve device requirements
Appendix B
Appendix C
Appendix D
REPORT FORMS
Appendix E
VERIFICATION OF STRESS RATIOS USING STRAIN GAUGES
4. Method 1 (applies to cylinders that do not use high tension winding)
5. Method 2 (applies to all cylinders)
Appendix F
FRACTURE PERFORMANCE METHODS
F.1. Determination of fatigue sensitive sites
F.2. Leak-Before-Break (LBB)
F.3. Defect size for non-destructive examination (NDE)
Appendix G
INSTRUCTIONS BY THE CONTAINER MANUFACTURER REGARDING HANDLING, USE AND INSPECTION OF CYLINDERS
G.1. General
G.2. Distribution
G.3. Reference to existing codes, standards and regulations
G.4. Cylinder handling
G.5. Installation
G.6. Use of cylinders
G.7. In-service inspection
Appendix H
ENVIRONMENTAL TEST
H.1. Scope
H.2. Summary of test method
H.3. Cylinder set-up and preparation
Figure H.1
Cylinder orientation and layout of exposure areas
H.4. Preconditioning apparatus
Figure H.2
Gravel impact test
H.5. Exposure environments
H.6. Test conditions
H.7. Test procedure
H.8. Acceptable results
ANNEX 4A
PROVISIONS REGARDING THE APPROVAL OF THE AUTOMATIC VALVE, NON-RETURN VALVE, THE PRESSURE RELIEF VALVE, PRESSURE RELIEF DEVICE AND THE EXCESS FLOW VALVE
2. THE AUTOMATIC VALVE
2.2. Operating specifications
3. THE NON-RETURN VALVE
3.2. Operating specifications
4. THE PRESSURE RELIEF VALVE AND PRESSURE RELIEF DEVICE
4.2. Operating specifications
5. THE EXCESS FLOW VALVE
5.2. Operating specifications
6. THE MANUAL VALVE
ANNEX 4B
PROVISIONS REGARDING THE APPROVAL OF FLEXIBLE FUEL LINES OR HOSES
SCOPE
1. HIGH PRESSURE HOSES, CLASS 0 CLASSIFICATION
1.1. General specifications
1.2. Hose construction
1.3. Specifications and tests for the lining
1.4. Specifications and test-method for the cover
1.5. Specifications for uncoupled hose
Figure 1
(example only)
1.6. Couplings
1.7. Assembly of hose and couplings
1.8. Markings
2. MEDIUM PRESSURE HOSES, CLASS 1 CLASSIFICATION
2.1. General specifications
2.2. Hose construction
2.3. Specifications and tests for the lining
2.4. Specifications and test-method for the cover
2.5. Specifications for uncoupled hose
Figure 2
(example only)
2.6. Couplings
2.7. Assembly of hose and couplings
2.8. Markings
3. LOW PRESSURE HOSES, CLASS 2 CLASSIFICATION
3.1. General specifications
3.3. Specifications and tests for the lining
3.4. Specifications and test-method for the cover
3.5. Specifications for uncoupled hose
Figure 3
(example only)
3.6. Markings
ANNEX 4C
PROVISIONS REGARDING THE APPROVAL OF THE CNG FILTER
ANNEX 4D
PROVISIONS REGARDING THE APPROVAL OF THE PRESSURE REGULATOR
2. PRESSURE REGULATOR
3. CLASSIFICATION AND TEST PRESSURES
ANNEX 4E
PROVISIONS REGARDING THE APPROVAL OF THE PRESSURE AND TEMPERATURE SENSORS
2. PRESSURE AND TEMPERATURE SENSORS
3. CLASSIFICATION AND TEST PRESSURES
ANNEX 4F
PROVISIONS REGARDING THE APPROVAL OF THE FILLING UNIT
1. SCOPE
2. THE FILLING UNIT
3. TEST PRESSURES
ANNEX 4G
PROVISIONS REGARDING THE APPROVAL OF GAS FLOW ADJUSTER AND GAS/AIR MIXER OR GAS INJECTOR
2. GAS/AIR MIXER OR GAS INJECTOR
3. GAS FLOW ADJUSTER
ANNEX 4H
PROVISIONS REGARDING THE APPROVAL OF THE ELECTRONIC CONTROL UNIT
2. ELECTRONIC CONTROL UNIT
ANNEX 5
TEST PROCEDURES
1. CLASSIFICATION
2. APPLICABLE TEST PROCEDURES
3. GENERAL REQUIREMENTS
ANNEX 5A
OVER PRESSURE TEST (STRENGTH TEST)
ANNEX 5B
EXTERNAL LEAKAGE TEST
ANNEX 5C
INTERNAL LEAKAGE TEST
ANNEX 5D
CNG COMPATIBILITY TEST
ANNEX 5E
CORROSION RESISTANCE TEST
Test procedures:
ANNEX 5F
RESISTANCE TO DRY HEAT
ANNEX 5G
OZONE AGEING
ANNEX 5H
TEMPERATURE CYCLE TEST
ANNEX 5I
PRESSURE CYCLE TEST APPLICABLE ONLY TO CYLINDERS (SEE ANNEX 3)
ANNEXES 5J AND 5K
NOT ALLOCATED
ANNEX 5L
DURABILITY TEST (CONTINUED OPERATION)
Test method
ANNEX 5M
BURST/DESTRUCTIVE TEST APPLICABLE ONLY TO CYLINDERS (SEE ANNEX 3)
ANNEX 5N
VIBRATION RESISTANCE TEST
Test method
ANNEX 5 O
OPERATING TEMPERATURES
ANNEX 6
PROVISIONS REGARDING CNG IDENTIFICATION MARK FOR PUBLIC SERVICE VEHICLES