Standard

AS 2746-2008

[Withdrawn]

Working areas for gas-fuelled vehicles

Sets out workshop safety requirements for dealing with Liquefied Natural Gas (LNG) fuelled engines and LNG fuel unloading methods, and requirements for CNG and LP Gas fuelled vehicles.
Published: 21/10/2008
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Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope and general
1.1 Scope
1.2 Objective
1.3 New designs and innovations
1.4 Referenced documents
1.5 Definitions
2 General service working areas
2.1 Application
2.2 Premises
2.3 Prevention of overheating
3 Gas leakage procedures
3.1 Application
3.2 Procedures
3.2.1 Known or suspected gas escape
3.2.2 Damaged vehicles
4 Specialist gas working areas—LP Gas
4.1 Application
4.2 Personnel
4.3 Equipment
4.4 Premises
4.5 Ventilation
4.6 Increased hazard
4.7 Work on the container and fittings
4.8 Work on the gas fuel system
4.9 Fuel unloading
4.10 Container purging
4.11 Purging into service
4.12 Storage of unpurged containers
4.13 Decommissioning and scrapping
4.13.1 Vehicles
4.13.2 Containers
5 Specialist gas working areas—CNG and LNG
5.1 Application
5.2 Personnel
5.3 Equipment
5.4 Premises
5.5 Ventilation
5.6 Increased hazard
5.7 Work on the container and fittings
5.8 Work on the gas fuel system
5.9 Fuel unloading
5.10 Storage of unpurged containers
5.11 Decommissioning and scrapping
5.11.1 Vehicles
5.11.2 Containers
6 Fire safety
6.1 General
6.2 Integration with existing facilities
6.2.1 General
6.2.2 Variations to requirements
6.2.3 Location
6.3 Hose reels
6.4 Fire extinguishers
6.4.1 General
6.4.2 Extinguisher location
6.4.3 Extinguisher location signs
6.4.3.1 Sign size
6.4.3.2 Location signs
6.4.3.3 Sign location
6.4.3.4 Mounting height
6.4.3.5 Visibility
6.4.3.6 Support
6.5 Training
Appendix A
Appendix B
Appendix C
C1 Introduction
C2 Decanting
C2.1 Description
C2.2 Precautions
C2.3 Equipment
C2.4 Procedure
C3 Flaring
C3.1 Description
C3.2 Precautions
C3.3 Equipment
C3.4 Procedure
C4 Pumping out
C4.1 Description
C4.2 Compression method
C4.3 Applied pressure method
C5 Venting
C5.1 General
C5.2 Description
C5.3 Precautions
Appendix D
D1 Introduction
D2 Flaring
D2.1 Description
D2.2 Precautions
D2.3 Equipment
D2.4 Procedure
D3 Venting to atmosphere
D3.1 General
D3.2 Precautions
D3.3 Equipment
D3.4 Procedure
Appendix E
E1 Introduction
E2 Flaring
E2.1 Description
E2.2 Precautions for flaring
E2.3 Equipment
E2.4 Procedure
E3 Venting to atmosphere
E3.1 General
E3.2 Precautions
E3.3 Equipment
E3.4 Procedure
Appendix F
F1 General
F2 Caution
F3 CNG vehicle emergency scenarios
F3.1 Case 1: Where there is an obvious gas release but no fire
F3.2 Case 2: A CNG vehicle fire which does not involve the gas or CNG fuel containers
F3.3 Case 3: CNG engine compartment fire
F3.4 Case 4: Vehicle fire fed by venting natural gas
Appendix G
G1 General
G2 Caution
G3 Emergency scenarios
G3.1 General small fires
G3.2 Spills
G3.3 Major fire or explosion hazard
G4 First aid for LP Gas cryogenic burns
G4.1 General
G4.2 Immediate treatment
Appendix H
H1 Hazards
H1.1 General
H1.2 Eyes
H1.3 Skin
H1.4 Breathing natural gas vapour
H2 Caution
H3 Emergency scenarios
H3.1 General
H3.2 Fire and explosion hazards
H3.3 Extinguishing a fire
H3.4 Firefighting instructions
H4 LNG vehicle emergency procedures
Cited references in this standard
[Current]
The storage and handling of gases in cylinders
ECE R110
Uniform agreement concerning the approval of:I Specific components of motor vehicles using compressed natural gas (CNG) in their propulsion systemII 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
ASME
Boiler and Pressure Vessel Code, Section VIII, Division 1
AGA AG807
Approval Requirements for Natural Gas Flexible Hose and Hose Assemblies for Pressures above 2.6 MPa
[Current]
Cryogenic vessels — Hoses
Content history
[Superseded]
DR 07372