M00001435
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ISO 12219-1 1st Edition, July 15, 2012 Interior air of road vehicles - Part 1: Whole vehicle test chamber - Specification and method for the determination of volatile organic compounds in cabin interiors
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Description / Abstract:
This part of ISO 12219 describes and specifies the whole vehicle
test chamber, the vapour sampling assembly and the operating
conditions for the determination of volatile organic compounds
(VOCs), 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, a 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.
The method is valid for passenger cars, as defined in ISO 3833.
This part of ISO 12219 describes:
a) transport and storage of the test vehicles until the start of
the test;
b) conditioning for 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). Buses, motor caravans, and trucks, in
accordance with the descriptions given in ISO 3833, are
excluded.
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.