British Standards Institution

Source:: ISO
Committee:: ISE/101/7 - Methods of physical and metallographic testing
Categories:: Information management | Standardization. General rules

Scope

This document provides an evaluation screening method for assessing the resistance to hydrogen embrittlement in high-pressure hydrogen atmospheres for steel pipes. The compatibility for use in a high-pressure hydrogen atmosphere is evaluated using two types of specimens with drilled holes according to various steel pipe sizes.

Purpose

The methods typically employed to assess material compatibility in high-pressure hydrogen environments face limitations when applied to steel pipes, primarily due to constraints in pipe thickness and diameter. As a result, this proposal suggests screening methods for evaluating the compatibility with high-pressure hydrogen atmospheres utilizing hole-drilled specimens feasible in steel pipes instead of notches specimens typically used. Through this approach, we aim to develop testing methods that enable safer evaluation and simultaneous testing of multiple specimens in high-pressure hydrogen atmospheres.

Comment on proposal

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

Standard timeline

1. Proposal

Proposal start date:

18/07/2024

Proposal end date:

08/09/2024

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/NP 25369 Steel pipes — Evaluation screening method on materials compatibility in high-pressure hydrogen

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