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Rubber- or plastics-coated fabrics — Determination of fogging characteristics of trim materials in the interior of automobiles
The method can also apply to fluid, pasty, powdered or solid raw materials which are the basis for such trim materials or from which the materials are manufactured. The method can also apply to other materials and finished products.
The procedure is applicable to the measurement of fog condensate on glass surfaces within the limits of the test conditions. This test cannot measure accurately those cases in which:
— the surface tension of the condensate is low, resulting in early coalescing into a thin transparent film;
— the condensate is present in such a large quantity that the droplets coalesce and form a heavy oily/clear film (this heavy film gives false readings).
In such cases, the gravimetric method is preferred.
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