Society of Glass Technology · [Sheffield] · leaf 530
l, B, of volume Vv wasjoined, by a capillary tube carry-ing a stop-cock, to the test vessel,A, of volume V. To the vessel,A, was also attached a suit-able manometer, M, for measur-ing the pressure. The weighedpiece or sample (W grams) ofthe dry material was placed invessel A and, if maximum… … 130 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. Flask B was filled with a non-adsorbable gas under suitablepressure. For most ceramic bodies dry air was satisfactory, buthydrogen would be required in some instances. Helium couldbe employed for all types of porous materials at room temperaturesor…
Glass
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