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    Fogging is the condensation of the volatile substances released from automotive interior parts and materials on the glass. Part of the volatile substances will harm the human body, and affect the health of those occupants, so it is necessary to perform fogging test for automotive interior materials. Pony Testing can provide you with professional fogging testing services.

    About fogging test
    Fogging/condensate is the condensation of the volatile substances released from automotive interior parts and materials on the glass. Automotive interior materials such as leather, plastics, textiles, and bonding materials, adhesives, etc., contain some volatile substances. Especially under sunlight, the vehicle inside temperature will get very hot, and increase the evaporation. Volatile gases condense on the car window or windshield, causing poor visibility and would affect the driver's attention and traffic safety; some volatile substances will affect the occupants' health. In order to control the volatile substances, it is necessary to carry out a fogging test for the material used for automotive interior, if the fog value is beyond the standard indicators, the material will not be allowed to be used for car interiors.

    In the 70s, some large car factory in Europe have begun studying the characteristics of fog, in the early 1980s the German automotive standard drafting committee and the synthetic material drafting committee standard together formed the "fogging" working group, began researching the fog test methods and methods of reproduction, and in 1992 released the corresponding standard DIN75201 "Determination of the windscreen fogging characteristics of trim materials in motor vehicles". Later the U.S. Motor Vehicle Engineers and the International Organization for Standardization based on DIN75201, made modification and released ISO 6452 and SAE J1756. According to the standard above, world's major automobile manufacturers have issued industrial testing standards, and proposed requirements for the fogging characteristics of automotive interior parts.

    The status of corporate control
    Through automotive interiors fogging test, materials control of volatile substances are achieved, to effectively reduce car pollution. This has become an important means for automotive manufacturers to control product quality.

    Current automotive fogging test has many domestic and international standards, these standards involve three test methods: the gloss method, the gravity method and the haze method.

    List of testing standards and methods



    Test method

    Volkswagen PV3015

    Determination of condensed components

    Weight method

    Volkswagen PV3920

    Non-metallic interior material haze value measure method

    Haze method

    Toyota TSM0503G

    Determination of condensed components

    Gloss method, gravimetric method

    German DIN 75201

    Automotive interior materials fogging property determination

    Gloss method, gravimetric method

    American SAE J1756

    Determination of vehicle interior parts fogging property test method

    Gloss method, gravimetric method

    International ISO 6452

    Rubber, plastic, leather - car interiors haze characteristics measured

    Gloss method, gravimetric method

    China QB/T 2728

    Leather physical, mechanical and fogging properties determination

    Gloss method, gravimetric method

    Nissan NES M0161

    Interior materials fog test method

    Haze method

    Mitsubishi  ES-X83231

    Interior materials fog forming test

    Haze method, gravimetric method

    Pony Testing Professional Qualifications
    Pony Testing has completed a number of professional automotive testing projects, and actively participates in drafting automotive testing standards and related development work, helped to establish China's auto material database, and has won a number of professional qualifications:
    Member of Vehicle Recycling Standards Working Group of National Automotive Standardization Committee
    Member of Sub-Committee on Automotive Energy Saving of National Automotive Standardization Technical Committee

    Pony Testing tips
    If you have testing needs in vehicle or vehicle components, please contact us, PONY with the advanced testing equipment and instrument, perfect quality assurance system and quality inspection team, based on national standards and enterprise standards can provide professional testing services.
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