GMW GMW15654 PDF

Note: Nothing in this standard supersedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose.

This test procedure is used for the qualitative and quantitative determination of Volatile Organic Compound (VOC) and Semi- Volatile Organic Compound (SVOC) emissions in vehicle interior air utilizing Tenax TA adsorbent media and Thermal Desorption - Gas Chromatography / Mass Selective Detection (TD-GC/MSD).

Individual VOC and SVOC emissions in different vehicle interior air samples can be identified, quantified, and compared.

In combination with GMW15634 the sources of VOCs and SVOCs in vehicle air can be identified.

VOC emissions are in the boiling point range less or equal to 345°C or chromatographic elution range from n-pentane (n-C5) to n-eicosane (n-C20), and SVOC emissions are in the boiling range large or equal to 280°C or chromatographic elution range from nhexadecane (n-C16) to n-dotriacontane (n-C32). This procedure can determine all of these components in vehicle interior air.

Foreword.

Determination of VOCs and SVOCs in vehicle interior air is essential to meet customer requirements and regulatory requirements in some global markets. Concentrations are in the parts per million (ppm) range which warrants accurate analytical measurements.

Applicability.

This test procedure should be used for all vehicles for the determination of VOC and SVOC emissions in the vehicle interior air. The results will provide complementary information to interpret findings in GMW3205, GMW3235, GMW3059 and GMW15635. Moreover, the test procedure can be used to pursue customer complaints regarding odor. The analytical instrumentation described herein can also be used in GMW15634 to determine the sources of VOCs and SVOCs in interior materials.

This test procedure was modified from EPA TO-17.

This test procedure complements GMW8081 and GMW15600.