Standard
UPDATE AVAILABLE
AS 3645-2010
[Superseded]Essential requirements for gas equipment
Specifies a set of safety and performance outcomes-oriented criteria for gas equipment to ensure that the equipment is constructed in accordance with good engineering practice in regard to safety and other requirements, and does not endanger the safety of persons (particularly children, the elderly and people with disabilities), domestic animals or property when properly installed, maintained and used in applications for which it is designed.
Published: 01/03/2010
Pages: 12
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
2 Essential requirements
2.1 General conditions
2.1.1 General
2.1.2 Instructions and warnings
2.1.3 Technical content of instructions
2.1.4 Content of instructions for users
2.1.5 Marking
2.1.6 Warning notices
2.1.7 Design of accessories
2.1.8 Instructions for accessories
2.2 Materials and components
2.2.1 Suitability of materials
2.2.2 Material properties
2.2.3 Controls and safety devices
2.2.4 Effect on water used for sanitary purposes or foodstuffs
2.3 Design and construction
2.3.1 General
2.3.1.1 Durability
2.3.1.2 Condensation
2.3.1.3 Risk of explosion
2.3.1.4 Contamination of gas circuit
2.3.1.5 Normal electricity supply variation
2.3.1.6 Abnormal electricity supply variation
2.3.1.7 Electrical hazards
2.3.1.8 Pressurized parts
2.3.1.9 Redundancy of controls
2.3.1.10 Hierarchy of safety controls
2.3.1.11 Protection of preset controls
2.3.1.12 Marking of controls
2.3.1.13 Normal gas supply pressure variations
2.3.1.14 Abnormal gas supply pressure variation
2.3.1.15 Gas quality
2.3.2 Unburned gas release
2.3.2.1 Gas leakage
2.3.2.2 Release of unburnt gas during ignition
2.3.2.3 Release of unburnt gas during operation
2.3.3 Ignition
2.3.4 Combustion
2.3.4.1 Quality of combustion
2.3.4.2 Release of combustion products
2.3.4.3 Abnormal draught conditions
2.3.4.4 Emissions from flueless appliances
2.3.5 Temperature
2.3.5.1 Surrounding surfaces
2.3.5.2 Gas equipment controls
2.3.5.3 Surfaces likely to be touched
2.3.5.4 Dangers to children and infirm and elderly persons
2.3.6 Rational use of energy
2.3.7 Mechanical safety
2.3.8 Stability and support
2.3.9 Maintenance
3 Means of compliance
3.1 General
3.2 Compliance with standards
3.3 Approval by gas technical regulator
3.4 Certification by competent third party
Appendix A
A1 Appliances
A1.1 AS 4551—Domestic gas cooking appliances
A1.2 AS 4552—Gas fired water heaters for hot water supply and/or central heating
A1.3 AS 4553—Gas space heating appliances
A1.4 AS 4554—Gas laundry dryers
A1.5 AG 105/AS 4555—Domestic gas refrigerators
A1.6 AG 106/AS 4556—Indirect gas-fired ducted air-heaters
A1.7 AS 4557—Domestic outdoor gas barbecues
A1.8 AG 108/AS 4558—Decorative gas log and other fuel effect appliances
A1.9 AS 4560—Gas pool heaters
A1.10 AS 4643—Overhead radiant tube gas heaters
A1.11 AG 404—LPG mobile industrial direct-fired air heaters
A1.12 AS 4565—Radiant gas heaters for outdoor and non-residential indoor use
A1.13 AS 4563—Commercial catering gas equipment
A1.14 AS 2658—LP Gas—Portable and mobile appliances
A2 Components
A2.1 AS 4617—Manual shut off gas valves
A2.2 AS 4618—Gas appliance regulators
A2.3 AS 4619—Gas appliance thermostats
A2.4 AS 4620—Thermoelectric flame safeguards
A2.5 AS 4621—Regulators for use with liquefied petroleum—Vapour phase
A2.6 AS 4622—Electrical and electronic ignition devices for gas appliances
A2.7 AS 4623—Jointing compounds and materials for use in gas pipe joints
A2.8 AS 4624—Combination controls for gas
A2.9 AS 4625—Electronic flame safeguards and flame detectors
A2.10 AS 4627—Quick-connect devices for gas
A2.11 AS 4628—Pressure and temperature limit devices for use with gas burners
A2.12 AS 4629—Automatic shutoff valves and vent valves
A2.13 AS 4630—Leakage detection systems
A2.14 AS 4631—Limited flexibility connectors for gas
A2.15 AS 4632—Over-pressure and under-pressure cut off devices
A2.16 AS 4566—Flue cowls—Gas appliances
A2.17 AS 4567—Twin wall metal flues—Gas appliances
A2.18 AS/NZS 1425—LP Gas fuel systems for vehicle engines
A2.19 AS/NZS 1869—Hose and hose assemblies for liquefied petroleum gases (LP Gas), natural gas and town gas
A2.20 BS EN 298—Automatic gas burner control systems for gas burners and gas burning appliances with or without fans
Cited references in this standard
[Superseded]
Approval requirements for LPG mobile industrial direct fired air heaters
[Superseded]
Hose and hose assemblies for liquefied petroleum gases (LP Gas), natural gas and town gas
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