 | American Microscopical Society - 1902 - 380 páginas
...any work on volumetric chemistry. e. Starch Solution. — Mix a small amount of clean potato starch with cold water until it becomes a thin paste ; stir...into 150 to 200 times its weight of boiling water and continue the boiling for a few minutes ; then let it stand and settle. It may be preserved by adding... | |
 | American Public Health Association - 1905 - 372 páginas
...carbonate before making up to the prescribed volume. 5. Starch solution. Mix a small amount of clean starch with cold water until it becomes a thin paste, stir...its weight of boiling water. Boil for a few minutes, then sterilize. It may be preserved by adding a few drops of chloroform. Collection of the Sample.... | |
 | American Public Health Association - 1905 - 378 páginas
...carbonate before making up to the prescribed volume. 5. Starch solution. Mix a small amount of clean starch with cold water until it becomes a thin paste, stir...its weight of boiling water. Boil for a few minutes, then sterilize. It may be preserved by adding a few drops of chloroform. Collection of the Sample.... | |
 | Milton Joseph Rosenau - 1913 - 1140 páginas
...its actual strength at frequent intervals. (6) Starch solution. Mix a small amount of clean starch with cold water until it becomes a thin paste; stir...its weight of boiling water. Boil for a few minutes, then sterilize. It may be preserved by adding a few drops of chloroform. Procedure. — Measure into... | |
 | Francis E. Daniels - 1914 - 152 páginas
...carbonate before making up to the prescribed volume. 5. Starch solution. Mix a small amount of corn starch with cold water until it becomes a thin paste. Stir...and made up into a clear solution. Collection of the sample.—The sample should be collected with the usual precaution against the entrainment or absorption... | |
 | Francis E. Daniels - 1914 - 164 páginas
...carbonate before making up to the prescribed volume. 5. Starch solution. Mix a small amount of corn starch with cold water until it becomes a thin paste. Stir...adding a few drops of chloroform. The product known as_ soluble starch is more convenient to use, being more easily dissolved and made up into a clear... | |
 | Francis E. Daniels - 1914 - 152 páginas
...carbonate before making up to the prescribed volume. 5. Starch solution. Mix a small amount of corn starch with cold water until it becomes a thin paste. Stir this into ISO to 200 times its weight of boiling water. Boil for a few minutes and preserve by adding a few drops... | |
 | Amory Prescott Folwell - 1916 - 564 páginas
...solution are improved by adding to each liter 5 cc of chloroform and 1.5 grams of ammonium carbonate before making up to the prescribed volume. 5. Starch...sample should be collected with the usual precaution against the entrainment or absorption of any oxygen from the atmosphere. Aspirator bottle apparatus... | |
 | Amory Prescott Folwell - 1916 - 564 páginas
...solution arc improved by adding to each liter 5 cc of chloroform and 1.5 grams of ammonium carbonate before making up to the prescribed volume. 5. Starch...into a clear solution. Collection of the, sample. — Tho sample should be collected with the usual precaution against the entrainment or absoqition... | |
 | American Public Health Association. Laboratory Section - 1917 - 140 páginas
...Mix a small amount of clean starch with cold water until it becomes a thin paste and stir this mass into 150 to 200 times its weight of boiling water. Boil for a few minutes, Chlorine. Solution of copper sulfate. Solution of potassium bichromate. Ports per million. 0.01 .02... | |
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... bichromate as described in almost any work on volumetric analysis. The keeping qualities of the thiosulphate solution are improved by adding to each liter 5 cc of chloroform and 1.5 grams of ammonium carbonate before making up to the prescribed volume.... 
