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ISO 13967:2009

Thermoplastics fittings — Determination of ring stiffness

Dec 7, 2009

General information

90.93     Oct 29, 2025

ISO

ISO/TC 138/SC 5

International Standard

23.040.45  

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Scope

ISO 13967:2009 specifies a method of determining the ring stiffness of bends and branches made from thermoplastic material and for use with plastics pipes having a circular cross-section. The method can be used to determine the stiffness of bends, equal branches and unequal branches, provided the fitting allows a diametric deflection of at least 4 %.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 13967:1998

NOW

PUBLISHED
ISO 13967:2009
90.93 Standard confirmed
Oct 29, 2025