Standard
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AS 3645:2025
[Current]AS 3645:2025 provides the essential requirements applicable to gas equipment for which regulatory approval is required before sale.
Published: 15/08/2025
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 Objective
1.3 Normative references
1.4 Terms and definitions
2 Essential requirements
2.1 General conditions
2.1.1 General
2.1.2 Instructions and marking
2.1.3 Content of instructions for installation and commissioning
2.1.4 Content of instructions for users
2.1.5 Content of markings
2.1.6 Design of accessories
2.1.7 Instructions for accessories
2.2 Materials
2.2.1 Suitability of materials
2.2.2 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 Controls and safety devices
2.3.1.10 Redundancy of controls
2.3.1.11 Hierarchy of safety controls
2.3.1.12 Protection of preset controls
2.3.1.13 Protection of adjustment
2.3.1.14 Prevention of accidental operation
2.3.1.15 Marking of controls
2.3.1.16 Normal gas supply pressure variations
2.3.1.17 Abnormal gas supply pressure variation
2.3.1.18 Gas quality
2.3.2 Unburnt gas release
2.3.2.1 Gas leakage
2.3.2.2 Release of unburnt gas during ignition
2.3.2.3 Accumulation 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 conformance
Appendix A
A.1 Appliances
A.2 Components
Cited references in this standard
[Current]
Gas installations, Part 2: LP Gas installations in caravans and boats for non-propulsive purposes