Abstract
IN a test for the liquid absorption of light powders, water is gradually added to the powdor in a hard-glass thick-walled test-tube fitted with a rubber bung. This is shaken between additions by giving several successive brisk taps each with the closed and the stoppered ends downwards on to a rubber pad until a paste is produced which flows out under certain standard conditions. The tubes, of 155 mm. length and 22 mm. bore, are about half full at the completion of the test.
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COWDREY, G., SMITH, M. Bursting of Glass Tubes by Thixotropic Pastes. Nature 143, 435–436 (1939). https://doi.org/10.1038/143435b0
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DOI: https://doi.org/10.1038/143435b0
