 | Rolla Clinton Carpenter - Building materials - 1892 - 830 pages
...samples — since the composition is apt to vary at different points of the flue (Appendix XXXI.). The composition is also apt to vary from minute to...complete determinations are desired, the analyses shoild be intrusted to an expert chemist. For approximate determinations the Orsatt or the Hempel %... | |
 | William Kent - Engineering - 1895 - 1234 pages
...these analyses great caro should betaken to procure average samples, since the composition is apt to vary at different points of the flue. The composition...expert chemist. For approximate determinations the Orsut or tho Hern pel apparatus may be used by the engineer. For the continuons indication of the amount... | |
 | Herman Poole - Calorimeters - 1898 - 284 pages
...to vary at different points of the flue; and where complete determinations are desired, the analysis should be intrusted to an expert chemist. For approximate determinations the Orsat* or the Hempelf apparatus may be used by the engineer. XVIII. Smoke Observations.—It is desirable to'have... | |
 | Walter Bradlee Snow - Steam-boilers - 1899 - 340 pages
...vary at different points of the flue ; and where complete determinations are desired, the analysis should be intrusted to an expert chemist. For approximate determinations the Orsat* or the Hempelf apparatus may be used by the engineer. XVIII. Smoke Observations. — It is desirable to have... | |
 | American Society of Mechanical Engineers - Mechanical engineering - 1900 - 1252 pages
...samples — since the composition is apt to vary at different points of the flue (Appendix XXXI.). The composition is also apt to vary from minute to...chemist. For approximate determinations the Orsat t or the Hempel X apparatus may be used by the engineer. (See Appendix XXXIII.) *Favre and Silberraan... | |
 | Herman Poole - Calorimeters - 1900 - 342 pages
...samples — since the composition is apt to vary at different points of the flue (pp. 128 and 129). The composition is also apt to vary from minute to...chemist. For approximate determinations the Orsat t or the Hempel % apparatus may be used by the engineer. *Favre and Silberraan give 14,544 BTU per... | |
 | Heine Safety Boiler Company - Steam-boilers, Water-tube - 1900 - 220 pages
...analyses great care should be taken to procure average samples — since the composition is apt to vary at different points of the flue. The composition...time. Where complete determinations are desired, the analysis should be intrusted to an expert chemist. For approximate determinations the Orsat or the... | |
 | Horatio Alvah Foster - Electrical engineering - 1901 - 1018 pages
...to procure average samples — since the composition is apt to vary at different points of the line. The composition is also apt to vary from minute to...the Hempel apparatus may be used by the engineer. XVIII. Smoke Observations. — It is desirable to have a uniform system of determining and recording... | |
 | William Kent - Boilers - 1901 - 522 pages
...analyses great care should be taken to procure average samples — since the composition is apt to vary at different points of the flue. The composition...expert chemist. For approximate determinations the Orsatf or the Hempel J apparatus may be used by the engineer. * Favre and Silberman gire 14.544 BTU... | |
 | Agriculture - 1902 - 696 pages
...these analyses great care should be taken to procure average samples, since the composition is apt to vary at different points of the flue. The composition...analyses should be intrusted to an expert chemist. For the continuous indication of the amount of carbonic acid present in the flue gases, an instrument may... | |
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The analysis of the flue gases is an especially valuable method of determining the relative value of different methods of firing, or of different kinds of furnaces. In making these analyses great care should be taken to procure average samples — since... 
