ISO 16923:2016 covers the design, construction, operation, inspection and maintenance of stations for fuelling compressed natural gas (CNG) to vehicles, including equipment, safety and control devices. ISO 16923:2016 also applies to portions of a fuelling station where natural gas is in a gaseous state and dispensing CNG derived from liquefied natural gas (LCNG) according to ISO 16924. ISO 16923:2016 applies to fuelling stations supplied with natural gas as defined in local applicable gas composition regulations or ISO 13686. It also applies to other gases meeting these requirements including biomethane, upgraded coal-bed methane (CBM) and gas supplies coming from LNG vaporization (on-site or off-site). ISO 16923:2016 includes all equipment for downstream gas supply connection (i.e. point of separation between the CNG fuelling station piping and the pipeline network). Fuelling station nozzles are not defined in this document. ISO 16923:2016 covers fuelling stations with the following characteristics: - slow fill; - fast fill; - private access; - public access (self-service or assisted); - fuelling stations with fixed storage; - fuelling stations with mobile storage (daughter station); - multi-fuel stations. ISO 16923:2016 is not applicable to domestic CNG fuelling devices without buffer storage. NOTE ISO 16923:2016 is based on the condition that the gas entering the fuelling station is odorized. For unodorized gas fuelling stations, additional safety requirements are included in Clause 10.
Tämän julkaisun valmistelusta Suomessa vastaa SFS Suomen Standardit, puh. 09 149 9331.
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
5 Risk management
6 General design requirements
6.1 General
6.2 Site layout
6.3 Pressure safety relief valves and venting
7 Fuel supply to the fuelling station
7.1 Supply by pipeline
7.2 Supply by mobile storage
8 Dryer
9 Compressors
9.1 General
9.2 Instrumentation and control
9.3 Crankcase design
9.4 Compressor enclosures, buildings and canopies
9.5 Underground compressor installations
9.6 Hazardous area classification
10 Buffer storage
11 Dispensers
11.1 General requirements
11.2 Breakaway devices
11.3 Fuelling hose assemblies
11.4 Fuelling hoses
11.5 Enclosure
11.6 Fuelling controls and instrumentation
11.7 Electrical systems and interconnections
11.8 Documentation
12 Gas odorization
13 Pipework
13.1 General
13.2 Buried piping
14 Electrical
14.1 Labelling
14.2 Contact with live parts
14.3 Cables
14.4 Performance after power fail and restoration
14.5 Electrical bonding and grounding
15 Instrumentation and control system
15.1 Gas detection
15.2 Emergency shutdown devices
16 Emergency shutdown
16.1 Emergency shutdown procedure
16.2 Restoration after emergency shutdown
17 Indoor fuelling
17.1 General
17.2 Ventilation
17.3 Additional requirements
18 Testing and commissioning
19 Operation
19.1 Fuelling procedures
19.2 Safety signs
19.3 Training
19.4 Emergency response plan
19.5 Operations manual
20 Inspection and maintenance
20.1 Inspection and maintenance program
20.2 Maintenance and testing frequency of gas detection
Annex A Examples of hazardous zone classification (informative)
Annex B Separation distances (normative)
Annex C Fuelling procedures (informative)
Annex D Emergency instructions example (informative)
Annex E Example of fuelling station periodic inspection and maintenance (informative)
IEC 60079-0:2011
IEC 60079-10-1:2015
IEC 60079-11:2011
IEC 60079-14:2013
IEC 60079-25:2010
IEC 60204-1:2016
IEC 60529:1989
ISO 11119-1:2012 Gas cylinders -- Refillable composite gas cylinders and tubes -- Design, construction and testing -- Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l
ISO 11119-2:2012 Gas cylinders -- Refillable composite gas cylinders and tubes -- Design, construction and testing -- Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l with load-sharing metal liners
ISO 11119-3:2013 Gas cylinders -- Refillable composite gas cylinders and tubes -- Design, construction and testing -- Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450L with non-load-sharing metallic or non-metallic liners
ISO 11439:2013 Gas cylinders -- High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles
ISO 11925-3:1997 Reaction to fire tests -- Ignitability of building products subjected to direct impingement of flame -- Part 3: Multi-source test
ISO 12100:2010 Safety of machinery -- General principles for design -- Risk assessment and risk reduction
ISO 13847 Petroleum and natural gas industries -- Pipeline transportation systems -- Welding of pipelines
ISO 14120:2015 Safety of machinery -- Guards -- General requirements for the design and construction of fixed and movable guards
ISO 15500-17:2012 Road vehicles -- Compressed natural gas (CNG) fuel system components -- Part 17: Flexible fuel line
ISO 15500-2:2016 Road vehicles -- Compressed natural gas (CNG) fuel system components -- Part 2: Performance and general test methods
ISO 15589-1:2015 Petroleum, petrochemical and natural gas industries -- Cathodic protection of pipeline systems -- Part 1: On-land pipelines
ISO 15649:2001 Petroleum and natural gas industries -- Piping
ISO 4126-1:2013 Safety devices for protection against excessive pressure -- Part 1: Safety valves
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads -- Part 1: Dimensions, tolerances and designation
ISO 834-1:1999 Fire-resistance tests -- Elements of building construction -- Part 1: General requirements
ISO 8580:1987 Rubber and plastics hoses -- Determination of ultra-violet resistance under static conditions
ISO 9809-1:2010 Gas cylinders -- Refillable seamless steel gas cylinders -- Design, construction and testing -- Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa
ISO 9809-2:2010 Gas cylinders -- Refillable seamless steel gas cylinders -- Design, construction and testing -- Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa
ISO/IEC 31010:2009 Risk management -- Risk assessment techniques