ISO/TS 20593:2017 PDF

Ambient air — Determination of the mass concentration of tire and road wear particles (TRWP) — Pyrolysis-GC-MS method

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Title (English):

ISO/TS 20593:2017

Ambient air — Determination of the mass concentration of tire and road wear particles (TRWP) — Pyrolysis-GC-MS method

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 34
Publication date:: June 15, 2017
Edition:: ISO TS 20593 edition 1 version 1
ICS:: 13.040.20

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Description (English):

ISO/TS 20593:2017 specifies a method for the determination of the airborne concentration (μg/m3), mass concentration (μg/g) and mass fraction (%) of tyre and road wear particles (TRWP) in ambient particulate matter (PM) samples. ISO/TS 20593:2017 establishes principles for air 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 fraction of tyre tread in PM and concentration of tyre tread in air. 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. Air sample collection is on quartz fibre filters with size-selective input in a range of PM2,5 or PM10. The method is suitable for the determination of TRWP in indoor or outdoor atmospheres.

Technical details

Technical committee: ISO/TC 146/SC 3 - Ambient atmospheres
SKU: ISO/TS 20593:2017

Abstract

Overview

ISO/TS 20593:2017 specifies a laboratory method for measuring tyre and road wear particles (TRWP) in ambient air using pyrolysis‑GC‑MS. The Technical Specification describes how to determine TRWP as airborne concentration (μg/m3), mass concentration (μg/g) and mass fraction (%) in particulate matter (PM) samples. Results can be reported on a TRWP basis (tyre tread plus road encrustations), or on a tyre rubber polymer / tyre tread basis.

Key topics and requirements

Sampling: Collection on quartz fibre filters with size‑selective inlets for PM2.5 or PM10; suitable for indoor and outdoor atmospheres.
Analytical principle: Thermal decomposition (pyrolysis) of filter-bound material to generate characteristic polymer fragments, separation by gas chromatography (GC) and identification/quantification by mass spectrometry (MS) - the pyrolysis‑GC‑MS method.
Markers and specificity: Quantification targets specific dimeric pyrolysis fragments that indicate common tyre polymers (e.g., SBR, BR, etc.), providing polymer specificity.
Calibration and standards: Use of calibration curves and deuterated internal standards to correct for recovery, matrix effects and instrument drift. The document includes recipes for stock and calibration solutions.
Quantification and calculations: Procedures to convert polymer mass to TRWP concentration and mass fraction, with normative annexes for detection limit calculations and dimer marker use.
Quality and performance: Sections on measuring range, limit of detection, repeatability and method performance characteristics. Annexes cover Curie‑point pyrolyser details and representative pyrograms.

Applications

Routine and research air quality monitoring for TRWP in urban, suburban and indoor environments.
Studies of human exposure to vehicle-derived particulate matter (PM2.5 / PM10) and source apportionment.
Environmental impact assessments and surveillance programs tracking non-exhaust vehicle emissions.
Laboratory method standardization in environmental testing labs using pyrolysis‑GC‑MS.

Who uses this standard

Environmental and air quality laboratories performing PM analysis.
Regulatory agencies and monitoring networks setting TRWP monitoring programs.
Academic and industrial researchers investigating tyre wear emissions.
Tire manufacturers and road authorities interested in quantifying wear contributions.

Related standards

ISO 4225 - Air quality: general vocabulary.
ISO 7708:1995 - Particle size fraction definitions (health‑related sampling).

Keywords: ISO/TS 20593:2017, tyre and road wear particles, TRWP, pyrolysis‑GC‑MS, ambient air, PM2.5, PM10, quartz fibre filters, deuterated internal standard.

Related standards

Mentioned in the description and other ISO standards

Abstract

Overview

Key topics and requirements

Sampling: Collection on quartz fibre filters with size‑selective inlets for PM2.5 or PM10; suitable for indoor and outdoor atmospheres.
Analytical principle: Thermal decomposition (pyrolysis) of filter-bound material to generate characteristic polymer fragments, separation by gas chromatography (GC) and identification/quantification by mass spectrometry (MS) - the pyrolysis‑GC‑MS method.
Markers and specificity: Quantification targets specific dimeric pyrolysis fragments that indicate common tyre polymers (e.g., SBR, BR, etc.), providing polymer specificity.
Calibration and standards: Use of calibration curves and deuterated internal standards to correct for recovery, matrix effects and instrument drift. The document includes recipes for stock and calibration solutions.
Quantification and calculations: Procedures to convert polymer mass to TRWP concentration and mass fraction, with normative annexes for detection limit calculations and dimer marker use.
Quality and performance: Sections on measuring range, limit of detection, repeatability and method performance characteristics. Annexes cover Curie‑point pyrolyser details and representative pyrograms.

Applications

Routine and research air quality monitoring for TRWP in urban, suburban and indoor environments.
Studies of human exposure to vehicle-derived particulate matter (PM2.5 / PM10) and source apportionment.
Environmental impact assessments and surveillance programs tracking non-exhaust vehicle emissions.
Laboratory method standardization in environmental testing labs using pyrolysis‑GC‑MS.

Who uses this standard

Environmental and air quality laboratories performing PM analysis.
Regulatory agencies and monitoring networks setting TRWP monitoring programs.
Academic and industrial researchers investigating tyre wear emissions.
Tire manufacturers and road authorities interested in quantifying wear contributions.

Related standards

ISO 4225 - Air quality: general vocabulary.
ISO 7708:1995 - Particle size fraction definitions (health‑related sampling).

Keywords: ISO/TS 20593:2017, tyre and road wear particles, TRWP, pyrolysis‑GC‑MS, ambient air, PM2.5, PM10, quartz fibre filters, deuterated internal standard.

ISO/TS 20593:2017 PDF

Technical details

Abstract

Overview

Key topics and requirements

Applications

Who uses this standard

Related standards

Related standards

Abstract

Overview

Key topics and requirements

Applications

Who uses this standard

Related standards

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