British Standards Institution

Source:: ISO
Committee:: PRI/200 - GB Co-ordination for International work on rubber standards
Categories:: Soil quality. General | Rubber | Tyres. General
Comment period start date:: 08/07/2025
Comment period end date:: 31/08/2025
Number of comments:: 0

Comment by:

31st Aug

Scope

This document specifies a method for the determination of the mass concentration (μg/g) of tyre and road wear particles (TRWP) in soil or sediment environmental samples.

This document establishes principles for soil or sediment sample collection, the generation of pyrolysis fragments from the sample, and the quantification of the generated polymer fragments. The quantified polymer mass is used to calculate the concentration of TRWP in soil or sediment. These quantities are expressed on a TRWP basis, which includes the mass of tyre tread and mass of road wear encrustations, and can also be expressed on a tyre rubber polymer or tyre tread basis.

NOTE Tyre and road wear particles are a discrete mass of elongated particles generated at the frictional interface between the tyre and roadway surface during the service life of a tyre. The particles consist of tyre tread enriched with mineral encrustations from the roadway surface.

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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:

06/01/2025

3. Public Comments

Public Comments start date:

08/07/2025

Public Comments end date:

31/08/2025

Learn more about the standards development process

Standards Development

BS ISO 21396 ISO 21396 Rubber. Determination of the mass concentration of tyre and road wear particles (TRWP) in soil and sediment. Pyrolysis-gas chromatography/mass spectrometry (GC/MS) method

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