EN ISO 105-N04:1995

Textiles - Tests for colour fastness - Part N04: Colour fastness to bleaching - Sodium chlorite (severe) (ISO 105-N04:1993)

Publication date:   Jan 1, 1997

General information

90.93 Standard confirmed   Jul 2, 2010


CEN/TC 248 Textiles and textile products

European Norm

59.080.01   Textiles in general



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Specifies a method for determining the resistance of the colour of natural cellulose textiles to the action of severe bleaching with sodium chlorite as ordinarily employed in textile processing. A specimen in contact with one or two specified adjacent fabrics is treated in a sodium chlorite solution, rinsed and dried. The change in colour of the specimen and the staining of the adjacent fabric(s) are assessed with the grey scale.

Life cycle


EN ISO 105-N04:1995
90.93 Standard confirmed
Jul 2, 2010


Adopted from ISO 105-N04:1993 IDENTICAL