Report for Analytical C h e m i s t s
By any other name it's just a paper
SS "wet-strength" is a fact Calling a paper "wet-strength" does not make it so. Scientists know that when it says S&S it is, in fact, wet strength. "Ash-Free" or "Ash-Low," genuine wetstrength papers come from S&S. "Ash-Free" for Quantitative Analysis: No. 589-1H. Hardened. Extra Rapid. Thin. For filtration of metallic hydroxides. No. 589-BH. Hardened. Rapid. Coarse and gelatinous ppts pressure filtration. No. 589 WH. Hardened. Medium speed and retention. For gravimetric analysis. No. 589 Red. To prevent collodial dis persion during filtration and washing. No. 507 Hardened. Extra dense. Separa tion of finely divided ppts from corrosive solutions. "Ash-Low" for Qualitative Analysis: No. 410 Extremely rapid. Thin. Gelati nous and coarse crystallines. No. 404 Very rapid. Soft. Loose texture. Coarse and gelatinous precipitates. No. 497 Moderately rapid. Retains pre cipitates that are moderately fine. No. 402 Dense. For filtration of very fine precipitates. No. 576 Extra dense. Hardened smooth. Biological products filtration (serum, in jection fluids). Analytical Filter Papers catalog available on request.
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ANALYTICAL CHEMISTRY
We could go on and on about pos sible further applications of fiber optics in industrial situations and in the laboratory, but the purpose of this report has been only to stimulate the interest of analytical chemists in an active area of tech nology t h a t has been relatively untouted in chemical publications. Suffice it to say t h a t much more work has been and is being done in such areas as design of fiber optic amplifiers (17), high voltage t r a n s mission monitoring, instrumenta tion for measuring pressure, vibra tion, and force, camera lenses, fiber optics systems responsive to sound and electric impulses, and systems with holding potential for memory devices. W h y shouldn't chemists be interested in fiber optics ? Fiber op tics m a y be a key in your future re search!
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Literature Cited
(1) Materials Engineering, 65, 21 (April 1967). (2) "Glass Flexible Fiber Optics-De sign Considerations," Bulletin 2, Corning Glass Works, Corning, Ν. Υ. (3) "Fiber Optics Handbook," Mosaic Fabrications Division, Bendix Corp., Sturbridge, Mass. (4) Engineering, 205, 177 (February 2, 1968). (5) Paul Fyfe, Optical Spectra, 2, 64 (July/August 1968). (6) The Iron Age, 198, 42 (December 29, 1966). (7) "Fiber Optics in Data Processing," Bulletin 1, Corning Glass Works, Cor ning, Ν. Υ. (8) Product Engineering, 39, 32 (Janu ary 1, 1968). (9) Stanley L. Englebardt, Science Diqest. 59,41 (May 1966). (lb) H. M. Runciman, W. B. Allan, and J. M. Ballantine, J. Sci. Instrum. 43,812 (1966). (11) M. J. Forrest, ibid., 44, 26 (Janu ary 1967). (12) M. Beroza, K. R. Hill, and Κ. Η. Norris,
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(1968). (13) Chem. Eng. News, 44, 56 (No vember 21, 1966). (14) J. J. Hrew and R. E. Newman, Rev. Sci. Instrum., 38, 869 (1967). (15) Product Engineering, 38, 73 (Oc tober 23, 1967). (16) "Fiber Optics Magnifiers," Cor ning Products Bulletin, Corning Glass Works, Corning, Ν. Υ. (17) F. 0. Kahl, Electronics World, 73, 25 (May 1965).
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