AS/NZS 1462.22:2023 Methods of test for plastics pipes and fittings, Method 22: Thermoplastics pipes — Determination of ring stiffness (ISO 9969:2016, IDT)
AS/NZS 1462.22:2023 identically adopts ISO 9969:2016, which specifies a test method for determining the ring stiffness of thermoplastics pipes having a circular cross section
AS/NZS 1462.22:2023 history
2023AS/NZS 1462.22:2023 Methods of test for plastics pipes and fittings, Method 22: Thermoplastics pipes — Determination of ring stiffness (ISO 9969:2016, IDT)
1997AS/NZS 1462.22:1997 Methods of test for plastics pipes and fittings - Method for the determination of pipe stiffness