Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 217
ML Wsl iff I, Jw Fig. ioo.—Vicat Needle. Time of Setting.—The object of this test is to determine thetime which elapses until the paste ceases to be fluid and plastic,called the initial set, and also the time required for it to acquirea certain degree of hardness, called the final set. For this…
Building materials · Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-147-116.webp)
