Colour Fastness to Perspiration

color fastness to perspiration:
Determining the resistance of the color of textiles to the action of human perspiration by treating specimens of the textile in contact with adjacent fabrics in two different solution containing histidine, drained and placed between two plates under a specified pressure in a test device. The specimens and the adjacent fabrics are dried separately. The change in color of them are assessed by comparison with the gray scales.
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Chemist Ahmed Hosny
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كيميائى أحمد حسنى سيرة ذاتية
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• Colour Fastness to Per...

[@naritsaraphowattanachai7482]

1 แนะนำอุปกรณ์ 0:02 - 1:50
2 Prepare samples 1:51
3 Prepare solutions 6:17
4 Sample are exposed to this solution 17:18
5 Grey scale 28:15

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How many hours can i use perspiration solution?

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Want Carbonize mathod test

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Great