Society of Glass Technology · [Sheffield] · leaf 431
fter the test-piece had been allowed to stand for a few hours ina vacuum over 95 per cent, sulphuric acid; Wh the weight of thesoaked test-piece suspended in water (or other suitable liquid);Dw the density at room temperature of the water or other liquidused for determining the suspended weight,… … Fig. 7. shaped test-pieces or to granular material. A pyknometer ofweight Wp gm., capacity Vp c.c. (at the setting temperature),and having a form equivalent to that shown in Fig. 7 was employed.The bulb was filled with a coarsely granular, sieved, and dried sampleof the material and its weight, Wv…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
