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Describes the relationship between the nominal wall thickness and the nominal outside diameter of thermoplastics pipes. Applicable to smooth thermoplastics pipes of constant circular cross-section along the whole length of the pipe.

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Specifies the nominal outside diameters for metric thermoplastics pipes for the conveyance of fluids under pressure and non-pressure. It also specifies nominal pressure ratings and minimum required strengths for pipes for pressure applications.

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Frequently Asked Questions

ISO/TC 138/WG 8 is a Working Group within the International Organization for Standardization (ISO). It is named "Basic geometrical characteristics of thermoplastics pipes". This committee has published 3 standards.

ISO/TC 138/WG 8 develops ISO standards. Currently, there are 3 published standards from this working group.

The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. Founded in 1947 and headquartered in Geneva, Switzerland, ISO brings together experts from 170+ member countries to share knowledge and develop voluntary, consensus-based standards that support innovation and provide solutions to global challenges.

A Working Group in ISO is a specialized group responsible for developing standards or technical work within a defined scope. These bodies bring together international experts to create consensus-based standards that support global trade, safety, and interoperability.

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