 | United States. Bureau of Chemistry - 1906 - Liczba stron: 1020
...tubing (7 mm), at least 30 cm in length and having a capacity of from 10 to 15 cc. (b) DKTERMINATION. By means of the special pipette introduce carefully,...solvents, such as gasoline (boiling point 50° to 60° (.'.), ether, benzol, etc. Dissolve the ink in the cylinder in the appropriate solvent and dilute up... | |
 | Alfred Henry Allen - 1911 - Liczba stron: 730
...tubing (7 mm.), at least 30 cm. in length and having a capacity of from 10 to 15 cc (b) Estimation. — By means of the special pipette introduce carefully,...necessary to use other solvents, such as gasoline (bp, 50° to 60°)^ ether, benzol, etc. Dissolve the ink in the cylinder in the appropriate solvent... | |
 | Alfred Henry Allen - 1911 - Liczba stron: 730
...tubing (7 mm.), at least 30 cm. in length and having a capacity of from 10 to 15 cc (b) Estimation. — By means of the special pipette introduce carefully,...necessary to use other solvents, such as gasoline (bp, 50° to 60°), ether, benzol, etc. Dissolve the ink in the cylinder in the appropriate solvent... | |
 | Alfred Henry Allen - 1911 - Liczba stron: 732
...tubing (7 mm.), at least 30 cm. in length and having a capacity of from 10 to 15 cc (b) Estimation. — By means of the special pipette introduce carefully,...necessary to use other solvents, such as gasoline (bp, 50° to 60°), ether, benzol, etc. Dissolve the ink in the cylinder in the appropriate solvent... | |
 | Percy Hargraves Walker - 1916 - Liczba stron: 80
...tubing (7 mm), at least 30 cm in length and having a capacity of from 10 to 15 cc. (b) DETERMINATION. By means of the special pipette Introduce carefully,...gasoline (boiling point 50° to 60° C.), ether, benzol, etc. Dissolve the ink in the cylinder in the appropriate solvent and dilute up to the 200 cc mark,... | |
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By means of the special pipette introduce carefully, drop by drop, into one of the 200 cc cylinders, exactly 16 mm. depth of the ink to be tested. The ink should be previously tested to determine a proper solvent for both base and dye. Alcohol is generally... 