Gas and fuel analysis for engineers A compend for those interested in the economical application of fuel Prepared especially for the use of students at the Massachusetts institute of technology . sion of aqueous vapor overseven per cent caustic soda is less than over water. Accuracy and Time Required.—The apparatus israther difficult to manipulate, but fairly rapid—abouttwenty-five minutes being required for an analysis—and accurate to one tenth of one per cent. ELLIOTT APPARATUS. Description.—The apparatus Fig. 10 consists of aburette holding ioo cc. graduated in tenths of a cubiccentimeter a
Gas and fuel analysis for engineers A compend for those interested in the economical application of fuel Prepared especially for the use of students at the Massachusetts institute of technology . sion of aqueous vapor overseven per cent caustic soda is less than over water. Accuracy and Time Required.—The apparatus israther difficult to manipulate, but fairly rapid—abouttwenty-five minutes being required for an analysis—and accurate to one tenth of one per cent. ELLIOTT APPARATUS. Description.—The apparatus Fig. 10 consists of aburette holding ioo cc. graduated in tenths of a cubiccentimeter and bulbed like the Bunte apparatus—thebulb holding about 30 cc.; it is connected with alevelling-bottle similar to the Orsat apparatus. Thetop of the burette ends in a capillary stopcock, thestem of which is ground square to admit of close con-nection with the laboratory vessel, an ungraduatedtube similar to the burette, except of 125 cc. top of this vessel is also closed with a capil-lary stopcock, carrying by a ground-glass joint athistle-tube F, for the introduction of the lower end of this vessel M is closed bv a rubber ANALYSIS OF CHIMNEY-GASES. 21. -? stopper carrying a three-way cock o, and connectedwith a levelling-bottle D. Theburette and vessel are held upon ablock of wood—supported by a ringstand—by fine copper wire tight-ened by violin keys. Manipulation.—The ground-glassjoints are lubricated as in the Bunteapparatus. The levelling bottles arefilled with water, the stopcocksopened, and the bottles raised untilthe water flows through the stop-cocks m and ?t. m is connectedwith the source whence the gas tobe analyzed is to be taken, n closed,D lowered and rather more than ioocc. drawn in, and m closed. 71 isopened, D raised and E lowered,nearly ioo cc. of gas introduced,and n closed; by opening ;;/ andraising D the remainder of the gasis allowed to escape, the tubes beingfilled with water and m closed, n isopened and the water
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