AATCC Test Method 164-2006
Colorfastness to Oxides of Nitrogen in the Atmosphere
under High Humidities

Developed in 1985 by AATCC Committee RA33

1.  Purpose and Scope

1.1  This test method is used to determine the resistance of the color of textiles to the action of oxides of nitrogen in the atmosphere at elevated temperatures with relative humidities above 85%.
1.2  On certain fibers, dyes do not readily fade at humidities below 85%.   Testing at higher humidities is required to produce color changes that predict service fading under warm, humid conditions.

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The above information is only a summary of the AATCC Test Method.

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