Download AATCC Technical Manual by American Assoc. of Textile Chemists and Colorists PDF

By American Assoc. of Textile Chemists and Colorists

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5 L of solution at wetting conc. 835 × (wetting conc. in g/L × (cost per g). 4 When two products have markedly different slopes for plots representing the relationship between sinking times and concentrations on log-log graph paper, great care must be exercised in interpreting the wetting data. 5¢ Wt. 5 L of soln. at wetting conc. 7¢ *Medium: distilled water, neutral. 9. 1 Precision. A within-laboratory test was conducted to establish the precision of the test method. Three testers, on three different days, performed four checks per level of surfactant.

4 Hydrochloric acid, concentrated reagent, 20%. Dilute 50 mL of concentrated hydrochloric acid, 38%, to 95 mL with distilled water. 5 Formic acid, 85%. Corrosive. Do not get in eyes or on skin. 6 1,4-Dioxane. 7 m-Xylene. 8 Cyclohexanone. 9 Dimethylformamide. 0027 g per mL at 20°C. 84). 5 g of distilled water. Cautiously add the acid to the water swirling and cooling in ice water or under a tap. Wear goggles! The solution becomes very hot and may boil and spatter if not cooled during mixing. 4956 g per mL.

00 g/L CV % 0 0 17 11 12 9 11 5 0 TM 17-1999 Fig. 3—Hook for use in test of wetting agents. , div. O. com. 4 turns per meter and a balanced construction is suitable. All the tubes of greige cotton yarn used for making 5 g skeins for a given series of wetting tests must be from the same lot of cotton. To average out the slight differences still remaining between different tubes of the same lot and to increase the number of skeins which are closely alike in wetting properties for the series, it is urged that each skein be reeled simultaneously from 4-12 tubes of yarn.

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