GMW 3235:2021

GMW 3235:2021

Fogging Characteristics of Trim Materials

€45.00

Details

This Test Procedure describes a test method on how to determine the fogging tendencies of all interior and air ventilation system materials.



Two alternative tests are specified with different methods of evaluating the degree of fogging.



Method A - Photometric Method. This method evaluates the volatility of organic constituents by reflectivity measurements (Coding A).



Method B - Gravimetric Method. This method determines the mass of fogging condensate on aluminum foil in mg by means weighing of foil before and after the fogging test (Coding B).



Because of the different dimensions of the available fog test units a factor has been established to compare the results of the different instruments. The factor can be obtained in Appendix A.

Additional Info

Author General Motors Worldwide (GMW)
Published by GM
Document type Standard
Edition 4
ICS 43 : Road vehicles engineering
Number of pages 11
Replace GMW 3235:2016