09/30175820 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS ISO 22621-5 - PLASTICS PIPING SYSTEMS FOR THE SUPPLY OF GASEOUS FUELS FOR MAXIMUM OPERATING PRESSURE UP TO AND INCLUDING 2 MPA (20 BAR) - POLYAMIDE (PA) - PART 5: FITNESS FOR PURPOSE OF THE SYSTEM
Hardcopy , PDF
31-05-2010
English
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Fitness for purpose
4.1 Method of preparation of assemblies for testing
4.1.1 General
4.1.2 Butt fusion joints
4.1.3 Electrofusion jointing
4.2 Requirements for fitness for purpose
4.2.1 Fitness for purpose for butt fusion joints
4.2.2 Fitness for purpose for electrofusion joints
4.2.3 Fitness for purpose for transition fittings
5 Overall service (design) coefficient
Annex A (normative) - Preparation of test assemblies by
butt fusion
A.1 Scope
A.2 Symbols
A.2.1 Symbols used in more than one phase
of the fusion-jointing cycle
A.2.2 Joint geometry
A.2.3 Ambient temperature
A.2.4 Butt-fusion cycle parameters
A.3 Pipes used for test assemblies
A.4 Conditioning
A.5 Apparatus
A.6 Jointing procedure
A.7 Butt-fusion cycle and parameters
Annex B (normative) - Preparation of test assemblies by
electrofusion
B.1 Scope
B.2 Terms and definitions
B.3 Symbols
B.3.1 General symbols
B.3.2 Clearances
B.3.3 Ambient temperature
B.3.4 Determination of fusion-jointing electrical
parameters
B.4 Joint assembly
B.4.1 General
B.4.2 Procedure
B.5 Diagrammatic representation of variation in fusion
energy with ambient temperature
Annex C (normative) - Test methods for the assessment of
fitness for purpose of transition fittings
C.1 Test pieces
C.2 Conditioning and test conditions
C.3 Leaktightness testing
C.4 Tensile pull testing
C.5 Temperature cycling testing
C.6 Tensile testing under constant tensile load at 80
degree C
Annex D (normative) - Derating coefficients for operating
temperatures
| Committee |
PRI/88/2
|
| DocumentType |
Draft
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| ISO 22621-2:2007 | Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) Polyamide (PA) Part 2: Pipes |
| ISO 13953:2001 | Polyethylene (PE) pipes and fittings — Determination of the tensile strength and failure mode of test pieces from a butt-fused joint |
| ISO 22621-3:2007 | Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) Polyamide (PA) Part 3: Fittings |
| ISO 1167-4:2007 | Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 4: Preparation of assemblies |
| ISO 6259-1:2015 | Thermoplastics pipes Determination of tensile properties Part 1: General test method |
| ISO 13954:1997 | Plastics pipes and fittings Peel decohesion test for polyethylene (PE) electrofusion assemblies of nominal outside diameter greater than or equal to 90 mm |
| ISO 13955:1997 | Plastics pipes and fittings — Crushing decohesion test for polyethylene (PE) electrofusion assemblies |
| ISO 22621-1:2007 | Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) Polyamide (PA) Part 1: General |
| ISO 1167-1:2006 | Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 1: General method |
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