British Standards Institution

Source:: ISO
Committee:: ISE/1 - Iron and steel standards co-ordinating committee
Categories:: Steels
Comment period start date:: 21/10/2025
Comment period end date:: 14/12/2025
Number of comments:: 0

Comment by:

14th Dec

Scope

This document specifies a PAR spectrophotometric method for the determination of niobium in steel. The method is applicable to all types of steel with niobium contents between 0,005 % (mass fractions) and 1,3 % (mass fractions).

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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:

20/07/2025

3. Public Comments

Public Comments start date:

21/10/2025

Public Comments end date:

14/12/2025

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Standards Development

BS ISO 9441 Steel — Determination of niobium content — PAR spectrophotometric method

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