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

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. This title may contain less than 24 pages of technical content.