AS/NZS 1477:2017 pdf free.PVC pipes and fittings for pressure applications.
This Standard specifies requirements for PVC pipes and fittings for pressure applications for use below ground or above ground, where they are not exposed to direct sunlight.
Appendix B sets out additional requirements for pipes and fittings classed as best environmental practice PVC-U for pressure applications.
NOTE: Requirements for the installation and use of pipes and fittings manufactured to this Standard are set out in AS/NZS 2032 and AS/NZS 2566.1, as applicable.
1.2 APPLICATION
Appendix A specifies a means of demonstrating conformance with this Standard. Appendix A defines the minimum requirements for a sampling and testing plan. Where variations to this plan are made, demonstrations of conformance with the minimum requirements may be necessary.
1.4 DEFINITIONS
For the purpose of this Standard, the definitions given in AS/NZS 3500.0 and those below apply.
1.4.1 Best environmental practice PVC pipes and fittings
Pipes or fittings produced by a manufacturer meeting both the requirements of the credit criteria prescribed in Appendix B and this Standard.
1.4.2 Hoop stress
The stress in a pipe or fitting under pressure, acting tangentially to the perimeter of a transverse section.
1.4.3 hydrostatic design stress
The hoop stress due to internal hydrostatic pressure, which can be applied continuously at a specified temperature. It is obtained by the application of a safety factor to the extrapolated 50 year long-term hydrostatic stress value.
1.4.4 Long-term hydrostatic stress
The continuously applied hoop stress that is estimated to cause failure at a specified time and temperature.
1.4.5 Moulded fittings
A fitting manufactured entirely by injection moulding.
1.4.6 Out-of-roundness (sometimes referred to as ‘ovality’)
The difference between the measured maximum outside diameter and the measured minimum outside diameter in the same cross-section of the pipe.
1.4.7 Post-formed bend
A bend produced from pipe conforming to this Standard.
1.4.8 Test pressure
The pressure applied internally to pipes or fittings when being tested for strength and watertightness.
1.4.9 Working pressure
The maximum pressure that can be sustained by the type and class of pipe or fitting for its estimated useful life under the expected working conditions.
2.5 FREEDOM FROM DEFECTS
2.5.1 General
Defects shall not affect the performance or function of the pipes and fittings in service.
Pipes shall not have any blisters and heat marks. When grooves, wrinkles, rippling, dents or projections are present, the pipe shall comply with the dimensional requirements of Table 4.1 or Table 4.2 as appropriate.
2.5.2 Cleanliness
Pipes and fittings shall be clean and free from any manufacturing debris.
2.5.3 Ends
Pipe and fitting ends shall not have any chips and rough edges. Jointing surfaces shall be smooth. The axis of sockets formed on the ends of pipes and fittings shall be parallel within 2° to the axis of the fitting.
The jointing surfaces of sockets on pipes and fittings for solvent cement jointing shall taper uniformly from the mouth to the root of the socket.