Report of the Committee On Editing Tentative And Offical Methods of Analysis, the Association of Official Agricultural Chemists
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26 TOTAL SOLIDS.-OFFICIAL. Proceed as directed under XVII, 5, employing 10 cc. of the sample measured at 20°C. 27 ASH.-OFFICIAL. Ignite the residue froni 10 cc. of the extract as directed under VIII, 4. 28 SUCROSE.— TENTATIVE. Neutralize the normal weight of the extract, evaporate to dryness, wash several times with ether, dissolve in water and determine as directed under VIII, 14 or 18. 29 METHYL ALCOHOL.— TENTATIVE. Proceed as directed under XVII, 16, 17 or 18, using the distillate from the d...etermination of alcohol, 18. Coloring Matters. 30 GENER-aLL. tentative. Proceed as directed imder XI. 31 LEMON AND ORANGE PEEL COLOR. Albrech Ulethod. — Tentatire. Place a few cc. of the extract in each of 2 test tubes; to one, add slowly 3-4 vol- umes of concentrated hydrochloric acid; to the other, several drops of concentrated ammonium hydroxid. If the color is due to lemon or orange peel only it is materi- ally deepened by such treatment. LEMON AND ORANGE OILS. 32 specific gravity, -tentative.
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