NBN ISO 12219-10:2021

This document describes and specifies the whole vehicle test chamber, the vapour sampling
assembly and the operating conditions for the determination of volatile organic compounds (VOCs;
for more information see Annex E), and carbonyl compounds in vehicle cabin air. There are three
measurements performed: one (for VOCs and carbonyl compounds) during the simulation of ambient
conditions (ambient mode) at standard conditions of 23 °C with no air exchange; a second only for
the measurement of formaldehyde at elevated temperatures (parking mode); and a third for VOCs
and carbonyl compounds simulating driving after the vehicle has been parked in the sun starting at
elevated temperatures (driving mode). For the simulation of the mean sun irradiation, fixed irradiation
in the whole vehicle test chamber is employed.
The VOC method is valid for measurement of non-polar and slightly polar VOCs in a concentration range
of sub-micrograms per cubic metre up to several milligrams per cubic metre. Using the principles
described in this method, some semi-volatile organic compounds (SVOC) can also be analysed.
Compatible compounds are those which can be trapped and released from the Tenax TA®1)
sorbent
tubes described in ISO 16000-6, which includes VOCs ranging in volatility from n-C6 to n-C16.
The sampling and analysis procedure for formaldehyde and other carbonyl compounds is performed
by collecting air on to cartridges coated with 2,4-dinitrophenylhydrazine (DNPH) and subsequent
analysis by high performance liquid chromatography (HPLC) with detection by ultraviolet absorption.
Formaldehyde and other carbonyl compounds can be determined in the approximate concentration
range 1 µg/m3
to 1 mg/m3
.
This method applicable to trucks and buses, as defined in ISO 3833:1977 3.1.1 to 3.1.6.
This document describes:
a) Transport and storage of the test vehicle until the start of the test.
b) Conditioning of the surroundings of the test vehicle and the test vehicle itself as well as the whole
vehicle test chamber.
c) Conditioning of the test vehicle prior to measurements.
d) Simulation of ambient air conditions (ambient mode).
e) Formaldehyde sampling at elevated temperatures (parking mode).
f) Simulation of driving after the test vehicle has been parked in the sun (driving mode).
1) Tenax TA®
is the trade name of a product supplied by Buchem. This information is given for the convenience of
users of this document and does not constitute an endorsement by ISO of the product named. Equivalent products
may be used if they can be shown to lead to the same results.
INTERNATIONAL STANDARD ISO 12219-10:2021(E)
© ISO 2021 – All rights reserved 1

ISO 12219-10:2021(E)