This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ...added which dissolves the casein or curd of milk and liberates the fat. The bottle is then whirled at a high speed, allowing the fat to come to the top of the bottle--that is, as the For approximate determination of fat and solids in milk, see p. 204. bottle is nearly horizontal when whirled, the fat approaches nearest ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1909 Excerpt: ...added which dissolves the casein or curd of milk and liberates the fat. The bottle is then whirled at a high speed, allowing the fat to come to the top of the bottle--that is, as the For approximate determination of fat and solids in milk, see p. 204. bottle is nearly horizontal when whirled, the fat approaches nearest the centre of the whirling body. Hot water is added and the bottle Fig. 55 Eight-bottle Babcock machine. whirled again and the percentage of fat is read off in the neck of the bottle. Fig-56. iThe Babcock centrifugal machines are obtainable in sizes ranging from those holding two bottles (Fig. 54) to those holding 24 (Figs. 55 and 56), and the smaller are run by hand while the larger sre often run by power (see Fig. 56). The smaller sizes may be clamped or screwed to a table, require but little space and are easy to operate. The Babcock bottle for milk-testing (Frontispiece)' holds about 40 cubic centimeters, the neck is graduated from o to 10 with sub-divisions of 0.2 per cent.--2 cubic centimeters being the exact volume of the space between o and 10--or 10% of 20 cubic centimeters, which volume of milk would be used had milk and melted fat the same specific gravity as water. It happens, however, that 2 cubic centimeters of melted fat weighs 1.8 grams, so in working with the test, 17.6 cubic centimeters of milk (the average volume of 18 grams of milk) are used. It is apparent then that the subdivisions on the stem of the bottle read per cent, direct. To illustrate: Suppose a given sample reads 5 on the neck, the volume occupied by this fat would be just one cubic centimeter and that would weigh 0.9 grams, and 0.9 grams equal 5% of 18 grams, or the per cent, of fat by weight in the milk. To make the test: The milk should be well mixed, and bo...
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Add this copy of The Production and Handling of Clean Milk, Including to cart. $25.00, very good condition, Sold by Peter L Masi - Books rated 4.0 out of 5 stars, ships from Montague, MA, UNITED STATES.
