ISO/TS 20593:2017

SLOVENSKI STANDARD
01-marec-2018
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Ambient air - Determination of the mass concentration of tire and road wear particles
(TRWP) - Pyrolysis-GC-MS method
Air ambiant - Détermination de la concentration en masse de particules provenant de
l'usure des pneumatiques et des chaussées (TRWP) - Méthode par pyrolyse-CG/SM
Ta slovenski standard je istoveten z: ISO/TS 20593:2017
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL ISO/TS
SPECIFICATION 20593
First edition
2017-06
Ambient air — Determination of the
mass concentration of tire and road
wear particles (TRWP) — Pyrolysis-
GC-MS method
Air ambiant — Détermination de la concentration en masse de
particules provenant de l’usure des pneumatiques et des chaussées
(TRWP) — Méthode par pyrolyse-CG/SM
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 3
4.1 Symbols of units (see also ISO 4226) . 3
4.2 Abbreviated terms . 3
5 Principle . 4
6 Reagents . 5
7 Apparatus . 5
7.1 Air sampling — Equipment and consumable supplies . 5
7.2 Specimen preparation laboratories . 6
7.3 Equipment for analysis . 6
7.4 Consumables . 6
8 Measuring range . 7
9 Limit of detection . 7
10 Procedure. 7
10.1 General . 7
10.2 Sample collection . 7
10.3 Deuterated internal standard preparation . 8
10.4 Calibration curve preparation . 8
10.4.1 Stock solutions . 8
10.4.2 Calibration curves . 9
10.5 Sample preparation . 9
10.5.1 Filter conditioning . 9
10.5.2 Total PM and PM .
2,5 10 10
10.5.3 Filter preparation .10
10.5.4 Internal standard addition .10
10.6 Sample pyrolysis .10
10.7 Sample measurement .10
11 Analysis .11
11.1 General .11
11.2 Total PM or PM concentration .11
2,5 10
11.3 TRWP detection limit .11
11.4 Quantity of tyre polymer in the sample .11
11.5 Air concentration of TRWP .11
11.6 Mass concentration of TRWP.12
12 Performance characteristics .12
12.1 General .12
12.2 Specific performance characteristics .12
12.3 Method detection limit .12
13 Test report .12
Annex A (informative) Recipe for calibration curves and stock solutions .14
Annex B (informative) Curie-point pyrolyser .16
Annex C (informative) Representative calibration curves and pyrograms .17
Annex D (normative) Calculation of TRWP detection limits .24
Annex E (normative) Calculation of results using dimer markers .26
Bibliography .28
iv © ISO 2017 – All rights reserved

Foreword
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URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 3,
Ambient atmospheres.
Introduction
Tyre and road wear particles (TRWP) are formed as a result of tread abrasion from the road surface
and subsequent particle release to the environment. TRWP consist of tyre tread particles which include
[3]
incorporated material from the road surface. The elastomeric fraction in TRWP contained in PM
2,5
or PM is quantified in this document by direct pyrolysis-GC-MS analysis of a sample filter. Mass can
be expressed on the basis of the rubber polymer, tyre tread, or TRWP. This method has been used to
measure the airborne concentration of TRWP in the PM fraction for three geographically separated
[4]
regions. The TRWP concentration in soil and sediment has also been characterized by a similar
[5]
method.
Specific chemical markers are generated from int
...