A Report of the National Research Council Committee on the Construction and Equipment of Chemical LaboratoriesChemical foundation, incorporated, 1930 - 340 lappuses |
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106. lappuse - No. 2 150 grams of good fresh anilin oil 180 grams of concentrated hydrochloric acid 1000 grams of water Wood must be free from paint, varnish, grease or chemicals. Apply two coats of solution No. 1 boiling hot with a paint brush, allowing each coat to dry thoroughly before the next coat is applied. Then apply two coats of solution No. 2 in the same way. When the wood is completely dried wash off excess chemicals with hot soapsuds. Finish with raw linseed oil. Polish comes from rubbing the oil down...
269. lappuse - Commit your blunders on a small scale and make your profits on a large scale.
307. lappuse - Division of Laboratories and Research, NY State Department of Health, Albany, NY : 1948, pp.
75. lappuse - There are but few substances which are so dangerous as to call for such complete removal from the neighborhood of the worker; moreover the primary object of a hood is to enable the worker to carry on with ease and comfort a given reaction while at the same time observing and controlling its progress. With nine-tenths of the reactions carried out in a chemical laboratory, evolving objectionable fumes, this can undoubtedly be best done in an open hood.
195. lappuse - Classroom space in each laboratory is a decided educational advantage because of the convenience. The instructor may stop individual work at any time and assemble his class for instruction or demonstration. He also has a place available where the more rapid students, when they have completed their experiments, may sit and write up their notes or study, out of the way of others who are working and still under his observation. Its principal disadvantage is again the waste of space and also...
263. lappuse - Ordinarily product development goes hand in hand with process development, with emphasis on one or the other, but in their methods and equipment requirements the two differ widely. Product development involves a study of properties and uses, leading, it may be, to exhaustive service tests, first in the laboratory and later under conditions of actual service. The purpose in any case is that of obtaining the product best suited to a specific use or a product well suited at a lower cost, or, possibly,...
263. lappuse - This is of two fairly distinct types: (1) what may be called Research proper, which employs the small-scale, laboratory equipment of academic research and differs from it mainly in objective, and (2) Development, or the experimental application of research to industry, which is another name for invention.
264. lappuse - In process development the problem is that of reducing the cost of operation, or improving the product, or both, and, when the results of research are to be translated into commercial production, of proceeding with reasonable safety and at minimum cost from laboratory-scale to plant-scale operation. The development of a new or improved product implies, of course, the development of a new process or one modified in respect to its operations or its raw materials.