Contents Technical Committee on Plastic Pressure Piping xx Preface xxiii Foreword xxv B137.0-05, Definitions, general requirements, and methods of testing for thermoplastic pressure piping 1 Scope 3 2 Reference publications 3 3 Definitions and abbreviations 8 3.1 Definitions 8 3.2 Abbreviations 11 4 Material requirements 11 4.1 Compounds 11 4.1.1 General 11 4.1.2 Virgin compounds 12 4.1.3 Reworked material 12 4.1.4 Stabilizers, lubricants, and pigments 12 4.2 Environmental requirements 12 4.2.1 Toxicity 12 4.2.2 Chemical resistance 12 4.2.3 Environmental stress cracking 12 4.2.4 Ultraviolet (UV) radiation protection 12 4.3 Hydrostatic sustained pressure strength 12 5 Manufactured pipe and fittings 13 5.1 General 13 5.1.1 Quality of work 13 5.1.2 Insert fittings 13 5.2 Threaded connections 13 5.3 Transition- and mechanical-type fittings 13 5.4 Piping for pressure applications 13 5.4.1 Hydrostatic sustained pressure strength 13 5.4.2 Validation of the hydrostatic design basis for polyethylene (PE) compounds 13 5.4.3 Classification of pipe 14 6 Test methods 14 6.1 General 14 6.1.1 Conditioning 14 6.1.2 Conditioning for the impact resistance test 14 6.1.3 Conditions for conducting tests 14 6.1.4 Specimens 14 6.1.5 Selection of test specimens 14 6.2 Toxicity 14 6.3 Chemical resistance 14 6.4 Apparent tensile properties (ring tensile test) 15 iii
B137 Series-05 Canadian Standards Association 6.4.1 General 15 6.4.2 Apparatus 15 6.4.3 Test specimen 15 6.4.4 Procedure 16 6.4.5 Calculations 16 6.5 Carbon black dispersion 16 6.5.1 Apparatus 16 6.5.2 Specimens 17 6.5.3 Preparation of the dispersion slide 17 6.5.4 Assessment of the slides 17 6.6 Hydrostatic sustained pressure test 18 6.6.1 Purpose 18 6.6.2 Calculating circumferential (hoop) stress 19 6.6.3 Calculating pressure ratings 19 6.6.4 Procedure for testing pipe materials 20 6.6.5 Procedure for testing manufactured pipe and tubing 22 6.6.6 Hydrostatic pressure test of fittings 23 6.6.7 Thermocycling test for plastic-to-metal transition fittings 23 6.7 Impact resistance test for pipe 24 6.7.1 Apparatus 24 6.7.2 Specimens 24 6.7.3 Procedure 24 6.7.4 Failure criteria 25 6.8 Measuring dimensions of pipe and tubing 25 6.8.1 General 25 6.8.2 Diameters 25 6.8.3 Wall thickness 25 6.8.4 Wall thickness range 25 6.8.5 Out-of-roundness 25 6.9 Measuring dimensions of bell- and socket-type fittings 25 6.9.1 General 25 6.9.2 Fitting diameters 26 6.9.3 Out-of-roundness 26 6.9.4 Fitting wall thicknesses 26 6.9.5 Minimum fitting lengths 26 6.10 Measuring threads 26 7 Markings 27 7.1 Pipe 27 7.2 Fittings 27 7.3 Solvent cement 27 A (informative) Supplementary information for hydrostatic sustained pressure strength testing 32 B (informative) Tapered plug gauges 36 C (informative) Conversion factors 37 Figures 1 Blunt start thread 28 2 Test specimen for ring tensile test 28 3 Split-disc test fixture for ring tensile test 29 4 Reproduction of photomicrographs for carbon black dispersion 30 5 Tup nose detail 31 iv
B137.1-05, Polyethylene (PE) pipe, tubing, and fittings for cold-water pressure services 1 Scope 41 2 Reference publications 41 3 Definitions and abbreviations 41 4 General 41 4.1 Basic requirements 41 4.2 Materials 41 4.2.1 Compounds 41 4.2.2 Basic properties 42 4.2.3 Long-term hydrostatic strength 42 4.2.4 Ultraviolet (UV) stabilization 42 4.2.5 Carbon black 42 5 Manufactured pipe, tubing, and fittings 42 5.1 Pipe and tubing 42 5.1.1 Diameter 42 5.1.2 Wall thickness 42 5.1.3 Pressure rating 42 5.1.4 Hydrostatic sustained pressure strength 43 5.1.5 Kellam stress-cracking test 43 5.2 Fittings 43 5.2.1 Plastic insert fittings 43 5.2.2 Transition- and mechanical-type fittings 43 5.2.3 Mechanical-type fittings using threads formed on outside diameter-sized pipe 44 6 Test methods 44 6.1 General 44 6.1.1 Conditioning 44 6.1.2 Conditions for conducting tests 44 6.2 Kellam stress-cracking test 44 6.3 Pullout test of fittings 45 7 Markings 45 7.1 Pipe and tubing 45 7.2 Plastic insert fittings 45 7.3 Transition- and mechanical-type fittings 45 A (informative) Standard Kellam stress-cracking test apparatus 56 B (informative) Standard practice for the installation of polyethylene (PE) pipe, tubing, and fittings for cold-water applications 57 C (informative) Standard practice for the material traceability of polyethylene (PE) pipe and tubing for cold-water pressure applications 67 1 Hydrostatic design stress for PE materials 46 2 Diameters for ID- and OD-sized PE pipe 46 3 Outside diameters for PE tubing 47 4 Minimum wall thicknesses and tolerances for ID-sized PE pipe for insert fittings 48 5 Minimum wall thicknesses and tolerances for OD-sized PE pipe 51 6 Minimum wall thicknesses and tolerances for PE tubing 55 7 Pressure ratings for PE pipe (water at 23 C) 55 v
B137 Series-05 Canadian Standards Association B137.2-05, Polyvinylchloride (PVC) injection-moulded gasketed fittings for pressure applications 1 Scope 71 2 Reference publications 71 3 Definitions and abbreviations 71 4 General 71 4.1 Basic requirements 71 4.2 Materials 71 4.2.1 Compounds 71 4.2.2 Long-term hydrostatic strength 72 5 Manufactured fittings 72 5.1 Dimensions and tolerances 72 5.2 Qualification test 72 5.3 Pressure rating 72 5.4 Gasketed joints 72 5.5 Quality control of fittings 72 5.5.1 Burst pressure 72 5.5.2 Accelerated regression test 72 5.5.3 Heat reversion in PVC moulded fittings 72 6 Test methods 73 6.1 General 73 6.1.1 Conditioning 73 6.1.2 Conditions for conducting tests 73 6.2 Fitting qualification test 73 6.3 Accelerated regression test 73 7 Markings 73 A (informative) Hydrostatic pressure testing considerations 77 1 Wall thicknesses, inside diameters, and gasketed bell depths 74 2 Minimum fitting dimensions and tolerances 75 3 Physical properties of elastomeric gaskets for pressure fittings 76 4 Heat reversion exposure times for PVC moulded fittings 76 B137.3-05, Rigid polyvinylchloride (PVC) pipe and fittings for pressure applications 1 Scope 83 2 Reference publications 83 3 Definitions and abbreviations 83 4 General 83 4.1 Basic requirements 83 4.2 Materials 83 4.2.1 Compounds 83 vi
4.2.2 Basic properties 84 4.2.3 Long-term hydrostatic strength 84 5 Manufactured pipe 84 5.1 General 84 5.2 Dimensions of pipe 84 5.2.1 Average outside diameter 84 5.2.2 Out-of-roundness 85 5.2.3 Wall thickness 85 5.2.4 Integral bell ends 85 5.3 Squareness of pipe ends 85 5.4 Pressure rating of pipe 85 5.5 Hydrostatic sustained pressure strength of pipe 85 5.6 Apparent tensile strength of pipe 85 5.7 Quality control of pipe 85 5.7.1 Flattening 85 5.7.2 Extrusion 85 5.7.3 Impact resistance of pipe 85 5.8 Gasketed bell-end and self-restrained joints 86 5.8.1 Gasketed bell-end joints 86 5.8.2 Self-restrained joints 86 5.9 Solvent-cemented joints 86 5.9.1 Solvent cement 86 5.9.2 Joining 86 6 Fittings 86 6.1 Dimensions of fittings 86 6.1.1 Threaded or solvent-weld joints 86 6.1.2 Moulded gasketed IPS fittings 86 6.1.3 Transition joints 86 6.1.4 Mechanical joints 87 6.2 Pressure rating of fittings 87 6.3 Hydrostatic sustained pressure test for fittings 87 6.4 Heat reversion in PVC moulded fittings 87 6.5 Fabricated fittings 87 6.5.1 Pressure rating 87 6.5.2 Hydrostatic sustained pressure test 87 6.5.3 Quality control 87 7 Test methods 88 7.1 General 88 7.1.1 Conditioning 88 7.1.2 Conditions for conducting tests 88 7.2 Flattening test for pipe 88 7.3 Long-term hydrostatic strength test for solvent-cemented joints 88 7.4 Quality control tests for fabricated fittings 88 7.4.1 Spark test 88 7.4.2 Lap shear test 88 7.5 Tensile testing for self-restrained joints 89 7.5.1 Failure criteria 89 7.5.2 Test procedure 89 8 Markings 89 8.1 Pipe 89 8.2 Fittings 89 vii
B137 Series-05 Canadian Standards Association 8.2.1 General 89 8.2.2 Fabricated fittings 89 8.3 Solvent cements 89 A (informative) Standard practice for the installation of PVC pressure pipe and fittings 103 1 Average outside diameters of PVC pipe 90 2 Out-of-roundness of PVC pipe 91 3 Wall thicknesses of IPS (SDR) PVC pipe 92 4 Wall thicknesses of IPS (schedule) PVC pipe 93 5 Wall thicknesses of IPS (DR) PVC pipe 93 6 Wall thicknesses of CI PVC pipe 94 7 Dimensions of solvent weld bell-end IPS PVC pipe 95 8 Pressure rating of schedule PVC pipe 96 9 Pressure rating of SDR PVC pipe 96 10 Pressure rating of DR PVC pipe 97 11 Short-term internal test pressure for gasketed bell-end joints 97 12 Minimum impact requirements for PVC pipe at 0 C 98 13 Physical properties of elastomeric gaskets for pressure pipe 99 14 Minimum wall thicknesses of IPS series PVC fittings 100 15 Pressure rating of schedule PVC fittings 101 16 Pressure rating of IPS series PVC fittings 101 17 Heat reversion exposure times for PVC moulded fittings 102 Figures 1 Lap shear test 102 B137.4-05, Polyethylene (PE) piping systems for gas services 1 Scope 119 2 Reference publications 119 3 Definitions and abbreviations 119 4 PE compounds and manufactured pipe, tubing, and fittings 120 4.1 Compounds 120 4.2 Pipe and tubing 120 4.2.1 General 120 4.2.2 Visual appearance 120 4.2.3 Dimensions 121 4.2.4 Performance requirements 122 4.3 Fittings and connections 122 4.3.1 General 122 4.3.2 Dimensions 123 4.3.3 Performance requirements 123 5 Test methods 124 5.1 General 124 5.1.1 Conditioning 124 5.1.2 Conditions for conducting tests 124 viii
5.2 Single-point elevated temperature pressure test 124 5.3 Leak test 125 5.4 Pullout strength test 125 6 In-plant quality assurance 126 6.1 Compound quality evaluation 126 6.1.1 Preliminary requirements 126 6.1.2 Compound sampling 126 6.1.3 Compound testing 126 6.1.4 Acceptance/rejection criteria 126 6.2 Pipe quality evaluation 127 6.2.1 In-line monitoring 127 6.2.2 Coiling parameters 127 6.2.3 Pipe sampling and testing 127 6.2.4 Acceptance/rejection criteria 127 6.2.5 Shipping and storage 127 6.3 Fittings Quality evaluation 128 6.3.1 Fittings Sampling and testing 128 6.3.2 Acceptance/rejection criteria 128 7 Markings 128 7.1 Pipe and tubing 128 7.2 Fittings 129 A (informative) Long-term hydrostatic strength of plastic pipes 136 B (informative) Multipoint elevated temperature hydrostatic test 137 C (informative) Dimensional tolerances based on specified minimum wall thickness requirements for PE pipe and tubing 140 D (informative) Cell classifications 142 E (informative) Established coil diameters 143 1 Tolerances for outside diameters of PE pipe for gas services 129 2 Wall thicknesses of PE pipe for gas services 130 3 Dimensional requirements of PE tubing for gas services 130 4 PE pipe for gas services sampling and testing schedule 131 5 Socket-fitting dimensions for PE tubing for gas services 132 6 Socket-fitting dimensions for PE pipe for gas services 133 7 Minimum pullout strength of compression and transition fittings used with PE pipe for gas services 134 8 Coil lengths for PE pipe for gas services 135 9 PE fitting sampling and testing schedule 135 B137.4.1-05, Electrofusion-type polyethylene (PE) fittings for gas services 1 Scope 147 2 Reference publications 147 3 Definitions and abbreviations 147 4 General 147 4.1 Basic requirements 147 ix
B137 Series-05 Canadian Standards Association 4.2 Materials 147 4.3 Reworked material 148 4.4 Heating mechanism 148 4.5 Dimensions and tolerances 148 5 Performance requirements 148 5.1 General 148 5.2 Pressure testing 148 5.2.1 Short-term rupture strength 148 5.2.2 Hydrostatic pressure 148 5.2.3 Single-point elevated temperature pressure 148 5.3 Tensile strength Socket-type joints only 148 5.4 Impact resistance Saddle-type joints only 149 5.5 Joint crush Socket- and saddle-type joints 149 6 Test methods 149 6.1 Conditioning 149 6.2 Preparation of specimens for testing 149 6.3 Pipe replacement 150 6.4 Joint crush test 150 6.5 Tensile strength test 150 7 In-plant quality assurance 151 7.1 General 151 7.2 Fitting tests 151 8 Markings 151 1 Fitting sampling and testing schedule 152 Figures 1 Preparation and position of the specimen for the joint crush test 153 2 Specimen position after the joint crush test 154 3 Preparation of a saddle specimen for the joint crush test 155 4 Saddle fitting position before and after the joint crush test 155 B137.5-05, Crosslinked polyethylene (PEX) tubing systems for pressure applications 1 Scope 159 2 Reference publications 159 3 Definitions and abbreviations 159 4 General 160 4.1 Basic requirements 160 4.2 Materials 160 4.2.1 Tubing 160 4.2.2 Metal components of mechanical fittings 160 4.2.3 Plastic fittings and components 160 4.2.4 Reworked material 160 4.3 Interior liner 160 x
5 Detailed requirements 161 5.1 Dimensions 161 5.1.1 Tubing 161 5.1.2 Mechanical- and compression-type fittings 161 5.1.3 Insert fittings 161 5.1.4 Transition fittings 162 5.2 Hydrostatic sustained pressure strength 162 5.3 Thermocycling test 162 5.4 Density 162 5.5 Environmental stress cracking 162 5.6 Degree of crosslinking 162 5.7 Stabilizer functionality 162 5.8 Bent-tube hydrostatic sustained pressure strength 162 5.9 Excessive temperature and pressure capability 162 6 Test methods 163 6.1 Conditioning 163 6.2 Test conditions 163 6.3 Density 163 6.4 Environmental stress cracking test 163 6.5 Degree of crosslinking 163 6.6 Stabilizer functionality 163 6.7 Bent-tube hydrostatic sustained pressure strength 164 6.7.1 Hot bending 164 6.7.2 Cold bending 164 6.8 Excessive temperature and pressure capability of tubing and fittings 164 6.9 Hydrostatic sustained pressure test of tubing and fittings 164 6.10 Additional tests for tubing manufactured using reworked material 164 6.10.1 General 164 6.10.2 Long-term hydrostatic strength 164 6.10.3 Temperature and pressure capability 165 6.10.4 Environmental stress cracking 165 7 Additional certification requirements of tubing manufactured using reworked material 165 8 Markings 165 8.1 Tubing 165 8.2 Fittings 165 8.3 Packaging 165 8.4 Flexible pre-insulated tubing 165 A (informative) Standard hydrostatic design stress information 173 1 Crosslinking processes for materials used to produce PEX tubing 166 2 Outside diameters and tolerances for PEX tubing 166 3 Wall thicknesses and tolerances for PEX tubing 167 4 Coil dimensions for PEX tubing 167 5 Fitting insert dimensions and tolerances 168 6 Crimping ring dimensions* before crimping 170 7 Crimping ring dimensions after crimping 170 8 Stepless one-ear clamp dimensions 171 9 Minimum hydrostatic sustained pressure requirements for PEX tubing and fitting assemblies 171 xi
B137 Series-05 Canadian Standards Association Figures 1 Test specimen for environmental stress cracking test 172 B137.6-05, Chlorinated polyvinylchloride (CPVC) pipe, tubing, and fittings for hot- and cold-water distribution systems 1 Scope 181 2 Reference publications 181 3 Definitions and abbreviations 181 4 General 181 4.1 Basic requirements 181 4.2 Materials 181 5 Manufactured pipe, tubing, and fittings 182 5.1 Dimensions of pipe and tubing 182 5.1.1 Diameter, out-of-roundness, and wall thickness 182 5.1.2 Length 182 5.2 Hydrostatic sustained pressure strength 182 5.3 Fittings 182 5.3.1 Socket-type fittings 182 5.3.2 CPVC-to-metal transition fittings 183 5.3.3 Mechanical fittings 183 5.4 Solvent cement 183 5.5 Quality assurance 183 6 Test methods 183 6.1 Hydrostatic pressure test of pipe and tubing 183 6.2 Sustained hydrostatic pressure test 184 6.3 Short-term hydrostatic pressure test 184 6.3.1 Apparatus 184 6.3.2 Sampling and specimen preparation 185 6.3.3 Test procedure 185 7 Markings 185 7.1 Pipe and tubing 185 7.2 Fittings 186 7.3 Solvent cement 186 A (informative) Standard practice for the installation of CPVC piping for hot- and cold-water distribution systems 194 1 Dimensions of CPVC tubing 186 2 Dimensions of CPVC pipe 187 3 Minimum coil inside diameters for coiled CPVC tubing 188 4 Dimensions for CPVC socket-type fittings for tubing 189 5 Dimensions for CPVC socket-type fittings for pipe 190 6 Laying lengths for CPVC socket-type fittings 192 xii
7 Minimum hydrostatic short-term pressure requirements for CPVC pipe, tubing, and fitting assemblies 193 Figures 1 Dimensions for CPVC socket-type reducer bushings 193 B137.8-05, Polybutylene (PB) piping systems for pressure applications 1 Scope 213 2 Reference publications 213 3 Definitions and abbreviations 213 4 General 213 4.1 Basic requirements 213 4.2 Material 213 4.2.1 General 213 4.2.2 Basic short-term properties 214 4.2.3 Hydrostatic sustained pressure strength 214 4.3 Plastic components of mechanical fittings 214 4.4 Metal components 214 4.4.1 Metal components of mechanical fittings 214 4.4.2 Metal valves 215 4.5 Toxicity 215 4.6 Carbon black 215 4.7 Oxygen barrier 215 5 Detailed requirements 215 5.1 Dimensions 215 5.1.1 Pipe and tubing 215 5.1.2 Socket-type fittings 216 5.1.3 Plastic-to-metal transition fittings and compression-type fittings 216 5.1.4 Insert-type fittings 216 5.2 Hydrostatic burst strength 217 5.3 Hydrostatic sustained pressure strength 217 5.4 Thermocycling of fittings 217 5.5 Steel clamps 217 5.6 Excessive temperature and pressure capability 217 6 Test methods 218 6.1 Conditioning 218 6.2 Hydrostatic sustained pressure test for pipe 218 6.3 Thermocycling test for fittings 218 6.3.1 Apparatus 218 6.3.2 Specimen preparation 219 6.3.3 Test procedure 219 6.4 Hydrostatic burst strength test 219 6.4.1 General 219 6.4.2 Assembly 219 6.4.3 Procedure 220 6.4.4 Failure criteria 220 6.5 Hydrostatic sustained pressure test of fitting assemblies 220 6.6 Excessive temperature and pressure capability 220 xiii
B137 Series-05 Canadian Standards Association 6.6.1 Test conditions 220 6.6.2 Failure criteria 220 7 Markings 220 7.1 Pipe and tubing 220 7.2 PB fittings 220 7.3 Plastic-to-metal transition fittings and compression-type fittings 221 7.4 Insert-type fittings 221 A (informative) Hydrostatic design stress 230 B (informative) Design, assembly, and installation considerations for PB piping 231 C (informative) Recommended performance qualification and in-plant quality control program for PB hot- and cold-water distribution system components 237 1 Dimensions of PB pipe 221 2 Dimensions of PB tubing 221 3 Dimensions of socket-fusion fittings for PB pipe 222 4 Dimensions for socket-fusion fittings for PB tubing 223 5 Dimensions for coiling PB pipe and tubing 224 6 Minimum dimensions from centre to end of socket (laying length) of PB socket-fusion tees and 90 elbows for pipe 224 7 Minimum dimensions from centre to end of socket (laying length) of PB socket-fusion tees and 90 elbows for tubing 225 8 Dimensions of insert-type fittings 226 9 Crimping ring dimensions before crimping 228 10 Crimping ring dimensions after crimping 228 11 Excessive temperature and pressure requirement for PB 21 SDR 11 tubing and fitting assemblies 228 12 Minimum hydrostatic burst strength for PB component joints 229 B137.9-05, Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pressure-pipe systems 1 Scope 241 2 Reference publications 241 3 Definitions and abbreviations 241 4 General 242 4.1 Constituent materials 242 4.2 Basic requirements 242 4.3 Aluminum metal 242 4.4 Thermoplastic PE compound 242 4.5 Melt adhesive 242 5 Detailed requirements 243 5.1 Dimensions of pipe 243 5.1.1 Outside diameter 243 5.1.2 Pipe wall thickness 243 5.1.3 PE tube thickness 243 5.1.4 Supplied length of pipe 243 xiv
5.2 Adhesion test 243 5.3 Apparent tensile strength of pipe ring 243 5.4 Burst pressure 243 5.5 Sustained pressure strength 243 5.6 Thermocycling 243 5.7 Fittings 243 6 Test methods 244 6.1 General 244 6.2 Sampling 244 6.3 Conditioning 244 6.4 Conditions for conducting tests 244 6.5 Dimensions and tolerances 244 6.5.1 Specimens 244 6.5.2 Outside diameter 244 6.5.3 Wall thickness 244 6.6 Outer PE tube thickness 244 6.6.1 Specimen preparation 244 6.6.2 Thickness determination 244 6.7 Adhesion test 245 6.7.1 Cutting the spiral 245 6.7.2 Examining for delamination 245 6.8 Ring strength test 245 6.8.1 Specimen size and shape 245 6.8.2 Test procedure 245 6.9 Burst pressure test 245 6.9.1 Pipe specimens 245 6.9.2 Temperature control 245 6.9.3 Test procedure 245 6.10 Thermocycling 246 7 Markings 246 A (informative) Hydrostatic design stress 251 B (informative) Assembly and installation considerations 252 1 Outside diameters, aluminum thicknesses, and tolerances for PE-AL-PE composite pipe 246 2 Wall thicknesses and tolerances for PE-AL-PE composite pipe 247 3 Minimum pipe ring strengths and burst pressures of PE-AL-PE composite pipe 247 Figures 1 Position for thickness measurement of outer tube of PE at the aluminum weld 248 2 Sketch of the spiral cutter for the adhesion test 248 3 Spiral-cut pipe for the adhesion test 249 4 Detection of delamination (adhesion test) 249 5 Schematic presentation of the pipe ring-strength test (showing the aluminum weld at 90 to the tensile axis) 250 xv
B137 Series-05 Canadian Standards Association B137.10-05, Crosslinked polyethylene/aluminum/ crosslinked polyethylene (PEX-AL-PEX) composite pressure-pipe systems 1 Scope 257 2 Reference publications 257 3 Definitions and abbreviations 257 4 General 258 4.1 Constituent materials 258 4.1.1 General 258 4.1.2 Basic requirements 258 4.1.3 Aluminum metal 258 4.1.4 Thermoplastic crosslinked PE 258 4.1.5 Melt adhesive 258 4.1.6 O-rings 258 4.2 Metal components of mechanical fittings 259 5 Detailed requirements 259 5.1 Dimensions of pipe 259 5.1.1 Outside diameter 259 5.1.2 Pipe wall thickness 259 5.1.3 Crosslinked polyethylene tube thickness 259 5.1.4 Supplied length of pipe 259 5.2 Adhesion test 259 5.3 Apparent tensile strength of pipe ring 260 5.4 Gel content requirement 260 5.5 Burst pressure 260 5.6 Sustained pressure strength 260 5.7 Thermocycling 260 5.8 Fittings 260 5.8.1 General 260 5.8.2 Water contact 260 5.8.3 Metallic fittings 260 5.8.4 Plastic fittings 260 5.8.5 Hydrostatic sustained pressure test 260 5.8.6 Threads 260 5.8.7 Solder-joint ends 261 5.8.8 Hydrostatic burst test 261 5.8.9 Thermocycling of fittings 261 5.8.10 Excessive temperature and pressure capability for fittings 261 5.8.11 Insert-type fittings 261 6 Test methods 261 6.1 General 261 6.2 Sampling 261 6.3 Conditioning 262 6.4 Conditions for conducting tests 262 6.5 Dimensions and tolerances 262 6.5.1 Specimens 262 6.5.2 Outside diameter 262 6.5.3 Wall thickness 262 6.6 Outer crosslinked PE tube thickness 262 6.6.1 Specimen preparation 262 xvi
6.6.2 Thickness determination 262 6.7 Adhesion test 262 6.7.1 Cutting the spiral 262 6.7.2 Examining for delamination 262 6.8 Ring strength test 262 6.8.1 Specimen size and shape 262 6.8.2 Test procedure 263 6.9 Gel content determination 263 6.9.1 Specimen preparation 263 6.9.2 Test method 263 6.10 Burst pressure test 263 6.10.1 Pipe specimens 263 6.10.2 Temperature control 263 6.10.3 Test procedure 263 6.11 Thermocycling 263 6.12 Pipe-end protection 264 6.13 Excessive temperature and pressure capability 264 6.14 Hydrostatic sustained pressure test of fitting assemblies 264 6.15 Hydrostatic burst test of fitting assemblies 264 7 Markings 264 A (informative) Hydrostatic design stress 270 B (informative) Assembly and installation considerations 271 1 Outside diameters, aluminum thicknesses, and tolerances for PEX-AL-PEX composite pipe 265 2 Wall thicknesses and tolerances for PEX-AL-PEX composite pipe 265 3 Minimum pipe ring strengths and burst pressure of PEX-AL-PEX composite pipe 266 4 Hydrostatic burst pressure for insert-type fitting assemblies 266 Figures 1 Position for thickness measurement of outer tube of crosslinked polyethylene at the aluminum weld 267 2 Sketch of the spiral cutter for the adhesion test 267 3 Spiral-cut pipe for the adhesion test 268 4 Detection of delamination (adhesion test) 268 5 Schematic presentation of the pipe ring-strength test (showing the aluminum weld at 90 to the tensile axis) 269 B137.11-05, Polypropylene (PP-R) pipe and fittings for pressure applications 1 Scope 277 2 Reference publications 277 3 Definitions and abbreviations 277 4 General 277 4.1 Basic requirements 277 4.2 Compound 277 4.2.1 Properties 277 xvii
B137 Series-05 Canadian Standards Association 4.2.2 Source 277 4.2.3 Long-term hydrostatic strength 278 5 Pipe 278 5.1 General 278 5.2 Dimensions 278 5.3 Pressure rating of pipe 278 5.4 Hydrostatic sustained pressure strength 278 5.5 Heat reversion 278 5.6 Apparent tensile strength 278 5.7 Impact resistance of pipe 278 6 Fittings 278 6.1 Dimensions 278 6.2 Hydrostatic sustained pressure test 279 7 Test methods 279 7.1 General 279 7.1.1 Conditioning 279 7.1.2 Conditions for conducting tests 279 7.2 Heat reversion 279 7.2.1 Preparation of specimens 279 7.2.2 Test procedure 279 7.2.3 Calculation 279 7.3 Impact resistance of pipe 279 7.3.1 Preparation of test specimens 279 7.3.2 Test procedure 280 8 Markings 280 8.1 Pipe 280 8.2 Fittings 280 A (informative) Standard installation practices for polypropylene (PP-R) pressure-pipe systems 283 1 Dimensions of PP-R pipe SDR 5 and 6 280 2 Pressure rating of PP-R pipe 281 3 Socket fitting dimensions 281 Figures 1 Impact resistance test specimen 282 B137.12-05, Polyamide (PA) piping systems for gas services 1 Scope 289 2 Reference publications 289 3 Definitions and abbreviations 289 4 PA compound and manufactured pipe, tubing, and fittings 290 4.1 Compounds 290 4.2 Pipe and tubing 290 xviii
4.2.1 General 290 4.2.2 Visual appearance 290 4.2.3 Dimensions 291 4.2.4 Performance requirements 291 4.3 Fittings and connections 292 4.3.1 General 292 4.3.2 Dimensions 292 4.3.3 Performance requirements 293 5 Test methods 294 5.1 General 294 5.1.1 Conditioning 294 5.1.2 Conditions for conducting tests 294 5.2 Single-point elevated temperature pressure test 294 5.3 Leak test 294 5.4 Pullout strength test 295 6 In-plant quality assurance 295 6.1 Compound quality evaluation 295 6.1.1 Preliminary requirements 295 6.1.2 Compound sampling 296 6.1.3 Compound testing 296 6.1.4 Acceptance/rejection criteria 296 6.2 Pipe quality evaluation 296 6.2.1 In-line monitoring 296 6.2.2 Coiling parameters 296 6.2.3 Pipe sampling and testing 296 6.2.4 Acceptance/rejection criteria 296 6.2.5 Shipping and storage 297 6.3 Fittings Quality evaluation 297 6.3.1 Fittings Sampling and testing 297 6.3.2 Acceptance/rejection criteria 297 7 Markings 298 7.1 Pipe and tubing 298 7.2 Fittings 298 1 Tolerances for outside diameters of PA pipe 299 2 Wall thicknesses of PA pipe 300 3 Dimensional requirements of PA tubing 301 4 Socket-fitting dimensions for PA tubing 302 5 Socket-fitting dimensions for PA pipe 303 6 Minimum pullout strength of compression and transition fittings used with PA pipe 304 7 Coil length for PA pipe 304 8 PA pipe sampling and testing schedule 305 9 Fitting sampling and testing schedule 305 xix