ISO/FDIS 20421-1Under development

Cryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testing

Récipients cryogéniques — Grands récipients transportables isolés sous vide — Partie 1: Conception, fabrication, inspection et essais

Abstract / scope

This document specifies requirements for the design, fabrication, inspection and testing of large transportable vacuum-insulated cryogenic vessels of more than 450 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks and portable tanks) attached to a means of transport, for one or more modes of transport.

This document applies to large transportable vacuum-insulated cryogenic vessels for fluids specified in 3.1 and does not apply to vessels designed for toxic fluids.

This document does not include the general vehicle requirements, e.g. running gear, brakes, lighting, etc.

NOTE 1 This document does not cover specific requirements for refillable liquid-hydrogen tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in land vehicles, see ISO 13985.

NOTE 2 This document does not cover specific requirements for refillable liquid hydrogen and LNG tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in vehicles, see ISO 13985.

Life cycle

Replaces

ISO 20421-1:2019PublishedCryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testingInternational Standard · Published 19 Jun 2019 · ISO/TC 220ISO 20421-1:2019/Amd 1:2022PublishedCryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testing — Amendment 1International Standard · Published 12 Apr 2022 · ISO/TC 220