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DIN ISO 12219-2

Interior air of road vehicles - Part 2: Screening method for the determination of the emissions of volatile organic compounds from vehicle interior parts and materials - Bag method (ISO 12219-2:2012)

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German title

Innenraumluft von Straßenfahrzeugen - Teil 2: Screeningverfahren für die Bestimmung von flüchtigen organischen Verbindungen aus Fahrzeuginnenraumausstattungsteilen - Probenbeutel-Verfahren (ISO 12219-2:2012)

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Engl. VDI/DIN-Kommission Reinhaltung der Luft (KRdL) - Normenausschuss
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This part of ISO 12219 describes the sampling bag test method for measuring volatile organic compounds (VOC), formaldehyde and other carbonyl compounds which may diffuse from vehicle interior parts into the cabin air. This method is intended for evaluating and screening new vehicle interior parts and materials such as seats, the instrument panel, ceiling materials and so on. One or multiple test samples put in a sampling bag are heated at a specified temperature, and then the gas in the sampling bag is collected to measure the test concentrations. By comparing the test concentrations with the corresponding blank concentrations, the sampling bag values of VOC, formaldehyde and other carbonyl compounds diffusing from one test sample can be calculated. The analytical part of the overall measurement procedure is based on the use of sorbent tubes with subsequent thermal desorption and gas chromatographic analysis for VOCs (according to ISO 16000-6) and the use of 2,4-dinitrophenylhydrazine (2,4-DNPH) sorbent tubes followed by high performance liquid chromatography (HPLC) analysis with ultraviolet absorption for the determination of formaldehyde and other carbonyls (according to ISO 16000-3) The specified analytical procedure is valid for the determination of volatile organic compounds (VOCs) ranging in concentration from sub-µg/m3 to several mg/m3. The method is applicable to the measurement of non-polar and slightly polar VOCs ranging in volatility from n-C6 to n-C16. The specified analytical procedure for formaldehyde and other carbonyl compounds is valid for the determination of carbonyls within the concentration range of approximately 1 µg/m3 to 1 mg/m3.

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