Abstract
Semi-volatile organic compounds (SVOC), which encompass many types of
phthalic- and phosphorus-acid esters(1)(2), exist in many automotive parts as the constituents
of plasticizers and flame resistant materials. It also has high exposure amount, causing
concern for potential health hazard to the vehicle occupants. There have been, however, only
few reports regarding SVOC inside automotive cabins. We, therefore, have carried out an
experimental measurement to gain the amounts of such SVOC in cabin, for the purpose of
studying proper SVOC measuring conditions. This paper presents measurements of SVOC
emitted from automotive interior materials using the Thermal Desorption Test Chamber
method (TDC method), which quantified emission amount of SVOC from materials at actual
temperature. As a result, SVOC emitted (BHT, DEP, DBP, DEHP, DINP, DOA, etc.) were
confirmed. These results indicated that measurements of SVOC emitted from automotive
interior materials could be carried out effectively.
Keywords - SVOC, Automotive interior material, Emissions, TDC method, Micro chamber