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. 1921 Excerpt: ...volume of water at approximately 180 F. Heat the water to about 190 and fill the pipette somewhat above the mark. Have a rubber tube with a pinch cock on top of the pipette and by means of the pinch cock set the water at the mark. Then with a stop watch in the left hand open the pinch cock suddenly and at the same time ...
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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. 1921 Excerpt: ...volume of water at approximately 180 F. Heat the water to about 190 and fill the pipette somewhat above the mark. Have a rubber tube with a pinch cock on top of the pipette and by means of the pinch cock set the water at the mark. Then with a stop watch in the left hand open the pinch cock suddenly and at the same time, start the stop watch. Note the length of time required for the water to run from the upper to the lower mark. Repeat the operation 2 or 3 times and take the average. The opening of the pipette should be so adjusted that it will deliver 100 cc. of water in approximately 35 seconds. Determine the viscosity of the glue solution in the same way, i.e., heat the solution slightly above 180 F.; fill the pipette; set it carefully on the mark and determine the length of time it requires for the glue solution to run from the upper to the lower mark. Run at least 2 determinations and take the average, if they agree reasonably well. Divide this time by the time required for water and report the result as the specific viscosity of the glue solution at 180 F. Grease.--Make a strong water solution of aniline blue. Use 25% solutions of the different samples of glue to be tested. To 25 cc. of the glue solution add 2 cc. of the dye, and with a 1.5 inch flat camel's-hair brush draw a smooth streak of the dyed glue across wrapping paper. White spots indicate grease. A comparison of the white spots will indicate the relative amount of grease in the different samples. The grease may be determined quantitatively by extracting 5-10 grams of the ground and dried material with anhydrous ether in a Soxhlet extractor, evaporating the ether and weighing the residue. LIME General.--There are two general classes of lime: (1) quicklime and (2) hydrated lime. (1) Quicklime....
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Add this copy of Technical Methods of Analysis as Employed in the to cart. $27.44, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Technical Methods of Analysis as Employed in the to cart. $37.75, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Technical Methods of Analysis as Employed in the to cart. $41.76, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
Add this copy of Technical Methods of Analysis as Employed in the to cart. $51.18, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
