Fusion-bonded medium-density polyethylene coating and lining for pipes and fittings
Product Designation: AS 4321:2025
Abstract: AS 4321:2025 specifies requirements for factory-applied fusion-bonded medium-density polyethylene coating and lining of pipes and fittings, for protection against corrosion
History: Originated as AS 4321-1995. Previous edition 2001. Reconfirmed 2019. Third edition 2025.
Passive scalable secondary domestic wastewater treatment systems
Product Designation: SA TS 5406:2025
Abstract: SA TS 5406:2025 sets out requirements for the design, commissioning, performance and conformance testing of passive secondary treatment systems (PSTS) designed to treat domestic wastewater.
History: First published as SA TS 5406:2025.
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