GB/T 40726-2021: Rubber-or plastics-coated fabrics - Determination of fogging characteristics of trim materials in the interior of automobiles

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Scope

This Document specifies a test method which is intended to determine the fogging
characteristics of rubber-or-plastics-coated fabrics that are used as trim materials in the interior
of motor vehicles.
This Document may also be applicable 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
may also be applicable to other materials and finished products.
This Document is applicable to the measurement of fog condensate on glass surfaces within the
limits of the test conditions. This test will not measure or 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.

Basic Data

Standard ID	GB/T 40726-2021 (GB/T40726-2021)
Description (Translated English)	Rubber-or plastics-coated fabrics - Determination of fogging characteristics of trim materials in the interior of automobiles
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G42
Word Count Estimation	14,152
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration