NF EN ISO 21012
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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.
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.
Le présent document spécifie des exigences relatives à la conception, la construction, les essais et le marquage des tuyaux flexibles cryogéniques non isolés.
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Exigences générales
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5 Essais sur échantillons de flexibles
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6 Essais de production
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7 Marquage
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8 Nettoyage
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9 Examen périodique
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10 Certificat d'essais
- Annexe A Tuyauterie flexible type
- Annexe B Essai de cycles de flexion applicable aux tuyauteries métalliques flexibles et aux tuyauteries flexibles en matériaux, accompagné d'un enregistrement d'utilisation satisfaisante en service cryogénique
- Annexe C Essai de cycles de flexion applicable aux tuyauteries flexibles constituées en matériaux ou composites rarement utilisés en service cryogénique
- Annexe D Guide relatif à l'examen périodique des flexibles de transvasement
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