Standard
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AS ISO 6993.2-2007
[Current]Buried, high-impact poly(vinyl chloride) (PVC-HI) piping systems for the supply of gaseous fuels, Part 2: Fittings for a maximum operating pressure of 200 mbar (20 kPa)
Adopts ISO 6993-2:2006, which specifies the requirements for non-end load-bearing fittings made of high-impact poly(vinyl chloride) (PVC-HI) intended to be used for the supply of gaseous fuels through buried pipelines having an operating temperature range of 0 degrees Celsius up to and including +30 degrees Celsius and a maximum operating pressure of 200 mbar (20 kPa).
Published: 12/07/2007
Pages: 18
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols
4 Material
4.1 Material for fittings
4.1.1 Composition
4.1.2 Long-term strength
4.1.3 Vicat softening temperature
4.1.4 K-value
4.2 Material for elastomeric sealing elements
5 General characteristics of fittings
5.1 Contaminants
5.2 Appearance and finish
6 Geometrical characteristics
6.1 Measurements
6.2 Fittings
6.2.1 Fittings with socket-ends
6.2.1.1 Mean inside diameter of socket-end
6.2.1.2 Out-of-roundness of socket-end
6.2.1.3 Height of stop shoulder or dead stop
6.2.1.4 Wall thickness and depth of engagement
6.2.2 Fittings with smooth spigot-ends
6.2.3 Bends with smooth spigot-ends
7 Physical characteristics
8 Mechanical characteristics
9 General requirements for fittings
10 Performance requirements
10.1 Tightness of joint with internal air pressure, with and without mechanical loading
10.2 Tightness of joint under negative pressure and mechanical loading
11 Test methods
11.1 General
11.2 Determination of particle size of contaminants
11.3 Determination of influence of heat for injection moulded fittings
12 Marking
Annex A
A.1 Principle
A.2 Test and conditioning
A.3 Additional test requirements
A.4 Interpretation of results
Annex B
B.1 Principle
B.2 Apparatus
B.2.1
B.2.2
B.2.3
B.3 Test piece
B.4 Test temperature and conditioning
B.5 Test procedure
Annex C
C.1 Principle
C.2 Apparatus
C.2.1
C.2.2
C.2.3
C.2.4
C.3 Test piece
C.4 Test temperature and conditioning
C.5 Test procedure
Bibliography
Cited references in this standard
Content history
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