Purpose.

This standard is used for the qualitative and quantitative determination of Volatile Organic Compound (VOC) and Semi-Volatile Organic Compound (SVOC) emissions in automotive material (AM) utilizing the micro-scale chamber and a Thermal Desorber – Gas Chromatograph/Mass Selective Detector (TD-GC/ MSD). Individual VOC and SVOC emissions in different vehicle materials can be identified, quantified, and compared. This method is an efficient and effective way to isolate emission sources and odors from automotive materials.

Individual VOC and SVOC emissions in different vehicle automotive materials can be identified, quantified, and compared.

VOC emissions in the boiling point range ≤ +345 °C or chromatographic elution range from n-pentane (n-C5) to n-eicosane (n-C20) (VOC value, GM) can be detected by one of the sorbent tube types specified in this method. It is assumed that these substances can be detected from vehicle interior air and total vehicle emissions.

Emissions that condense on a vehicle surface (e.g., glass, plastic lens, etc.,) at ambient temperature are classified as SVOC or FOG emissions, as defined in glossary. SVOC emissions are in the boiling point range ≥ +280 °C or chromatographic elution range from n-hexadecane (n-C16) to n-dotriacontane (n-C32) (SVOC or FOG value, GM) and can be detected by this method.

Individual VOC and SVOC emissions identified as an odor can be quantified and compared.