NZS 4405:1986
Helical lock-seam corrugated steel pipes
Specifies requirements for full circular shape corrugated steel pipes manufactured from galvanized steel strip. The pipe is formed by a continuous helical lock-seam, and only pipes in which the direction of the corrugations run helically to the longitudinal axis of the pipe are covered. Requirements for base metal, lock-seam strength, coupling bands, perforations, protective coating and workmanship are specified. Identical to AS 1761:1985 with modifications for New Zealand.
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NZS 4405:1986
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.