ISI 21-1e Determination of Sand in Starch
   Return                               1. Scope                       The method is applicable to native starch.                                  LT 18. Dec. 1966 Rev. LT 11.Dec.1998                                 2. Principle                       Incineration of starch sample at 525  o C and         determination of the residue insoluble in hydrochloric acid.                                                   3. Reagents              3.1 Hydrochloric acid, 10% solution                 Pour and mix carefully - use eye protection                                        3.2 Silver nitrate solution                                                   4. Apparatus                       4.1 Analytical balance weighing to the nearest 0.1 mg.         4.2 Ashing dish of platinum          4.3 Electrically heated furnace.          4.4 Desiccator with dry drying agent          4.5 Bunsen burner          4.6 Filter funnel with ash free filter, 9 cm diameter              ...