ISO 20421-1:2019Published

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

Récipients cryogéniques — Récipients transportables isolés sous vide de grande contenance — Partie 1: Conception, fabrication, inspection et essais

A new edition is under development: ISO/FDIS 20421-1.

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

Amendments & corrigenda

ISO 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

Replaces

ISO 20421-1:2006WithdrawnCryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testingInternational Standard · Published 19 Apr 2006 · ISO/TC 220ISO 20421-1:2006/Cor 1:2007WithdrawnCryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testing — Technical Corrigendum 1International Standard · Published 23 Jul 2007 · ISO/TC 220

Replaced by

ISO/FDIS 20421-1Under developmentCryogenic vessels — Large transportable vacuum-insulated vessels — Part 1: Design, fabrication, inspection and testingInternational Standard · ISO/TC 220