ISO 13967:1998 Thermoplastics fittings - Determination of ring stiffness

Abbreviation
ISO 13967:1998
Valid from
16/07/1998

Information provider
Standards New Zealand
Author
International Organization for Standardization
Information type
ISO Standard
Format
PDF


Description

This International Standard 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.

Scope

This International Standard 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 that the fitting allows a ring deflection of at least 4%.

If a fitting has the same wall thickness, wall construction, material and diameter as a pipe being tested, then, because of its geometry, its stiffness will be equal to or greater than that of the pipe tested. In this case, the fitting can be classified as having the same stiffness class as the pipe, without testing.

Any unequal branch may be expected to have at least the same stiffness as an equal branch, provided that it has the same main diameter, wall construction and material as the equal branch.

Note: The result of the test reflects the resistance the fitting has against deflection when installed. Advice on the significance of the test result is given in annex A.

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This resource is cited by:

ISO 13967:1998 Thermoplastics fittings - Determination of ring stiffness

This document is CITED BY:

ISO 13967:1998 Thermoplastics fittings - Determination of ring stiffness

Description

This International Standard 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.

View on Information Provider website
ISO 13967:1998 Thermoplastics fittings - Determination of ring stiffness
Description

This International Standard 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.

View on Information Provider website
This resource does not cite any other resources.

ISO 13967:1998 Thermoplastics fittings - Determination of ring stiffness

This resource does not CITE any other resources.
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