AATCC Test Method 23-2010
Colorfastness to Burnt Gas Fumes

Developed in 1941 by AATCC Committee RA33

1.  Purpose and Scope

1.1  This test method is intended for assessing the resistance of the color of textiles of all kinds and in all forms when exposed to atmospheric oxides of nitrogen as derived from the combustion of natural gas.  Exceptions are noted in 11.8.1.

1.2  This test method may be used for rating colorfastness of dyes by applying the dye to textiles by a specified procedure and at a specified depth of color and testing the dyed textiles.

2.  Principle

2.1  A specimen of the textile and the test control fabric are exposed simultaneously to oxides of nitrogen from burnt gas fumes until the control shows a change in color corresponding to that of the standard of fading.  The change in the color of the specimen is assessed with the standard gray scale for assessing change in color.   If no color change is observed in the specimen after one exposure period or cycle, exposure may be continued, for either a specified number of periods or for the number of periods required to produce a specified amount of color change in the specimen.


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