Society of Glass Technology · [Sheffield] · leaf 525
olume of thesand was redistilled carbon tetrachloride.All densities were determined at air tem-perature, 16° to 17-6°. The sand sampleswere dried at 150°. The average values of the density referredto water at 4° were : silver sand (a) (un-ground), 2-638; (6) (ground), 2*528; silicaglass (crushed),… … Fig. 61. GLASS : MANUFACTURE AND PROPERTIES. 81
Glass
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