NF EN ISO 21012

NF EN ISO 21012

September 2024
Standard Current

Cryogenic vessels - Hoses

This document specifies design, construction, type and production testing, and marking requirements for both non-insulated cryogenic flexible hoses and insulated vacuum jacketed hoses used for the transfer of cryogenic fluids within the following range of operating conditions:—     working temperature range: from −270 °C to +65 °C;—     nominal size (DN): from 10 to 100.End fittings for mounting of any couplings are within the scope of this document, but the couplings are subject to other standards.

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Main informations

Collections

National standards and national normative documents

Publication date

September 2024

Number of pages

36 p.

Reference

NF EN ISO 21012

ICS Codes

23.020.40   Cryogenic vessels
83.140.40   Hoses

Classification index

E86-511

Print number

1

International kinship

ISO 21012:2024

European kinship

EN ISO 21012:2024
Sumary
Cryogenic vessels - Hoses

This document specifies design, construction, type and production testing, and marking requirements for both non-insulated cryogenic flexible hoses and insulated vacuum jacketed hoses used for the transfer of cryogenic fluids within the following range of operating conditions:

—     working temperature range: from −270 °C to +65 °C;

—     nominal size (DN): from 10 to 100.

End fittings for mounting of any couplings are within the scope of this document, but the couplings are subject to other standards.

Replaced standards (1)
NF EN ISO 21012
December 2018
Standard Cancelled
Cryogenic vessels - Hoses

ISO 21012:2018 specifies design, construction, type and production testing, and marking requirements for non-insulated cryogenic flexible hoses used for the transfer of cryogenic fluids within the following range of operating conditions: - working temperature: from −270 °C to +65 °C; - nominal size (DN): from 10 to 100. End fittings for mounting of any couplings are within the scope of this document, but the couplings are subject to other standards. ISO 21012:2018 is intended that the hose be designed and tested to satisfy the generally accepted rated pressure i.e. at least PR 40. Hoses may be then selected with a PR equal to or greater than the maximum allowable pressure (PS) of the equipment to which it is to be used.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Exigences générales
  • 5 Essais sur échantillons de tuyaux flexibles
  • 6 Tests de production
  • 7 Marquage
  • 8 Nettoyage
  • 9 Examen périodique
  • 10 Certificat d'essais
  • A Tuyauterie flexible type
  • B Essai de cycles de flexion applicable aux tuyauteries flexibles métalliques et aux tuyauteries flexibles constituées de matériaux, accompagné d'un enregistrement d'utilisation satisfaisante en service cryogénique
  • C Essai de cycles de flexion applicable aux tuyauteries flexibles constituées de matériaux ou composites rarement utilisés en service cryogénique
  • D Guide relatif à l'examen périodique des tuyaux flexibles de transvasement
  • E Matériaux acceptables
  • ZA Relation entre la présente Norme européenne et les exigences essentielles concernées de la Directive 2014/68/UE (Directive relative aux équipements sous pression)
  • Bibliographie
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