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STANDARD

Current

ÖNORM EN ISO 13971

Issue date: 2025 11 15

Refrigeration systems and heat pumps - Flexible pipe elements, vibration isolators, expansion joints and non-metallic tubes - Requirements and classification (ISO 13971:2012)

This International standard describes requirements, design and installation of flexible pipe elements (e.g., metallic flexible pipe, metallic flexible tube, vibration isolator, expansion joint) and non-metallic tube used in the refrigerant circuits of refrigerating systems and heat pumps. It also describes the requirements to qualify the tightness and permeability of non-metallic tubes (e.g., plastic) used in evaporating and/or condensing sides of refrigerating systems and heat pumps. This International standard does not apply to flexible pipes that are only occasionally stressed beyond the elastic limit (e.g., during repair work), or to joints that are free to rotate or hinge.

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General information on ÖNORM EN ISO 13971

Format

Paper | 17 Pages

Language

German | English | Download GER/ENG

Publisher

Austrian Standards International

Committee 223 Refrigeration and heat pump technology

Timeline

An overview of the development of ÖNORM EN ISO 13971 from 2000 til today.

• ÖNORM EN ISO 13971

  2025 11 15 Standard ÖNORM EN ISO 13971, Edition: 2025 11 15

  Refrigeration systems and heat pumps - Flexible pipe elements, vibration isolators, expansion joints...
• ÖNORM EN 1736

  2009 01 01 Standard ÖNORM EN 1736, Edition: 2009 01 01

  Refrigerating systems and heat pumps - Flexible pipe elements, vibration isolators, expansion joints...
• ÖNORM EN 1736

  2000 04 01 Standard ÖNORM EN 1736, Edition: 2000 04 01

  Refrigerating systems and heat pumps - Flexible pipe elements, vibration isolators and expansion joi...

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Frequently Asked Questions about ÖNORM EN ISO 13971

What is a "Single-User Licence"?

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How can I get involved in the further development of this standard?

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Normative References

Here you will find an extract of the normative references. Please refer to the document itself for the full list.

Dokumentnummer	Titel	Ausgabedatum	Art	Link
Dokumentnummer ISO 175:2010	Titel Plastics — Methods of test for the determination of the effects of immersion in liquid chemicals	Ausgabedatum 2010 10 22	Art Standard	Zur Produktseite
Dokumentnummer ISO 5149-2:2014	Titel Refrigerating systems and heat pumps — Safety and environmental requirements — Part 2: Design, construction, testing, marking and documentation	Ausgabedatum 2014 04 08	Art Standard	Zur Produktseite

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