British Standards Institution

Source:: ISO
Committee:: PVE/18 - Cryogenic vessels
Categories:: Cryogenic vessels
Comment period start date:: 27/01/2025
Comment period end date:: 22/03/2025
Number of comments:: 0

Comment by:

22nd Mar

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.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

22/11/2024

3. Public Comments

Public Comments start date:

27/01/2025

Public Comments end date:

22/03/2025

Learn more about the standards development process

Standards Development

BS EN ISO 20421-1 ISO 20421-1 Cryogenic vessels. Large transportable vacuum-insulated vessels. Part 1: Design, fabrication, inspection and testing

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