. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. ^ problem met with. It is of unequal composi-tion due to the structure of the cane, to unequal distribution of added water,and to inferior crushing at the extreme ends of the rollers. To avoid errorfrom these causes the sample should be taken from across the whole widthof the rollers. The subsequent treatment depends on the method of analysisused. If small quantities—lOO grams—are used in the analysis, it is im-perative that a large sample of, say, a kilogram
. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. ^ problem met with. It is of unequal composi-tion due to the structure of the cane, to unequal distribution of added water,and to inferior crushing at the extreme ends of the rollers. To avoid errorfrom these causes the sample should be taken from across the whole widthof the rollers. The subsequent treatment depends on the method of analysisused. If small quantities—lOO grams—are used in the analysis, it is im-perative that a large sample of, say, a kilogram be chopped to a fine mealin some machine, such as a sausage-meat chopper. This process is trouble-some and invariably entails some alteration in the composition of the is much better to make the analyses on a larger quantity, say, one kilogram,and to avoid the sub-sampling. With efficient modern mUling, bagasse isin a suitable condition for analysis without further division. Bagasse taken from the earlier mills of a train for special analyses must,of course, be reduced to a fine state of Fig. 354 The sampling of bagasse cannot be automatic, nor 3et can it be safetypreser\ed for anal5sis. Its composition depends on the feed of cane and onthe quantity of water used. The samples should then be taken under normalworking conditions and should indicate as the result of their analysis whathas been the average, and not what was the composition of bagasse at anyparticular moment. In the system of operating cane sugar houses lack ofappreciation of this point often leads to friction between the engineer andthe chemist, both often forgetting that they are merely individual units ina complicated machine. The nmuber of samples and analyses necessary to obtain an averageresult reasonably accurate will depend on the variation between individualanalyses, and this variation will depend on the variation in the raw material,the regularit} of feed, and the general oversi
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsugar, bookyear1921
