British Standards Institution

Source:: ISO
Committee:: PVE/18 - Cryogenic vessels
Categories:: Cryogenic vessels
Comment period start date:: 14/02/2025
Comment period end date:: 09/04/2025
Number of comments:: 1

Comment by:

9th Apr

Scope

This part of ISO 21013 provides separate calculation methods for determining the required mass flow to be relieved for each specified conditions described in the following table:

Please see draft for table:

Good engineering practice based on well-established theoretical physical science needs to be adopted to determine the required mass flow where an appropriate calculation method is not provided for an applicable condition.

Recommendations for pressure relief devices for cryostats are given in Annex A.

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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:

11/12/2024

3. Public Comments

Public Comments start date:

14/02/2025

Public Comments end date:

09/04/2025

Learn more about the standards development process

Standards Development

BS EN ISO 21013-3 ISO 21013-3 Cryogenic vessels. Pressure-relief accessories for cryogenic service. Part 3: Sizing and capacity determination

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