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BS EN ISO 105-E14:1997
Textiles. Tests for colour fastness. Colour fastness to acid-felting. Mild (British Standard)
A specimen of the textile (textiles in all kinds and in all forms) in contact with adjacent fabrics is milled in acid solution, rinsed and dried (action of dilute and hot mineral acids). The change in colour of the specimen and the staining of the adjacent fabrics are assessed with the grey scales.
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British Standards Institution [bsi]
British Standards Institution [bsi]