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GB/T 39648-2020 English PDF (GBT39648-2020)

GB/T 39648-2020 English PDF (GBT39648-2020)

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GB/T 39648-2020: Textiles -- Tests for colour fastness -- Determination of colour fastness grades by digital imaging techniques
This Standard specifies the methods for evaluating the discoloration grade of the specimen (according to Annex A) and the evaluation of the staining grade of the standard backing fabric (according to Annex B) by digital imaging techniques in the color fastness test. It also specifies the requirements of digital imaging system. This Standard does not apply to the grading of light fastness tests of textiles.

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