Colorfastness to Sodium Hypochlorite Bleach in Home Laundering

This test method is used to determine the colorfastness to sodium hypochlorite bleach, commonly called "chlorine bleach," in home laundering of textiles which are expected to withstand frequent laundering.

Results of this test method may be used in combination with other testing for establishing care instructions (see 5.1, 9.6 and 12.8).

If a chlorine bleach contains ingredients other than the sodium hypochlorite, it is the total effect of these chemicals on the color change that is being evaluated.

This test method is designed for home laundering devices. An accelerated colorfastness test simulating multiple home laundering (including those with sodium hypochlorite) is described in AATCC Test Method (TM) 61, Colorfastness to Laundering: Accelerated. There is no known correlation between those sections of TM61 and this method


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