Standard
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AS 4623-2008
[Current]Jointing compounds and materials for use in gas pipe joints
Specifies the uniform minimum requirements for manufacturers, designers, regulatory authorities, testing laboratories and similar for the safety, performance and use of jointing compounds and materials for use with threaded or flanged joints in pipes and fittings used in gas installations. These jointing compounds and materials are intended for use with natural gas, town gas, tempered liquefied petroleum gas and liquefied petroleum gas.
Published: 30/06/2008
Pages: 18
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Foreword
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Definitions
1.4 Classification
2 Design and construction
2.1 Materials
2.1.1 Continuity of satisfactory sealing
2.1.2 Uniform consistency
2.1.3 Suitability for all gases under pressure (resistance to condensates)
2.1.4 No asbestos
2.2 Markings
2.3 Instructions
3 Performance requirements
3.1 Keeping properties
3.1.1 Properties retained for minimum of two years
3.1.2 Heat resistance
3.2 Resistance to corrosion
3.3 Resistance to leakage
3.4 Resistance to water
3.4.1 Leak tightness after exposure to boiling water
3.5 Resistance to temperature
3.6 Resistance to vibration
3.7 Consistency
3.8 Resistance to drying
3.9 Strength
3.9.1 Torque test—Hard setting compound
3.9.2 Torque test—Soft jointing compound
Annex A
A.1 Samples
A.2 Conditioning of sample
A.3 Preparation of joints
A.3.1 Screwed joints
A.3.1.1 Class I
A.3.1.2 Class II or III
A.3.2 Flanged joints—All classes
A.4 Test gases
Annex B
B.1 Scope
B.2 Principle
B.3 Apparatus
B.4 Materials
B.5 Procedure
B.6 Results
Annex C
C.1 Scope
C.2 Principle
C.3 Apparatus
C.4 Materials
C.5 Procedure
Annex D
D.1 Scope
D.2 Principle
D.3 Apparatus
D.4 Materials
D.5 Preparation of apparatus
D.6 Procedure
Annex E
E.1 Scope
E.2 Principle
E.3 Apparatus
E.4 Materials
E.5 Preparation of apparatus
E.6 Procedure
E.6.1 All classes
E.6.2 Classes II and III
Annex F
F.1 Scope
F.2 Principle
F.3 Apparatus
F.4 Preparation of apparatus
F.5 Procedures
F.5.1 All classes
F.5.2 Classes II and III
Annex G
G.1 Scope
G.2 Principles
G.3 Apparatus
G.4 Procedure
G.4.1 All classes
G.4.2 Classes II and III
Annex H
H.1 Scope
H.2 Principle
H.3 Apparatus
H.4 Procedure
H.4.1 All classes
H.4.2 Classes II and III
Annex I
I.1 Scope
I.2 Principle
I.3 Materials
I.4 Procedure
I.4.1 All classes
I.4.2
Cited references in this standard
EN 1759-1
Flanges and their joints—Circular flanges for pipes, valves, fittings and accessories, Class designated, Part 1: Steel flanges, Nps 1/2 to 24
BS 1560-3-2
Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges, Part 3.2: Specification for cast iron flanges.
[Current]
Pipe threads where pressure-tight joints are made on the threads, Part 1: Dimensions, tolerances and designation
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