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A multistage flowmeter (right) is being cali brated in Fischer and Porter's new fluids cali bration laboratory
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Photograph Courtesy of the Fleischmann Laboratories. Standard Brands Incorporated
S&S Analytical Filter Papers make possible new standards of precision New techniques in industry now demand added precision in the analytical laboratory —especially in quality control. S & S Analytical Filter Papers offer unique and exclusive advantages to the chemist who is never satisfied. FOR QUANTITATIVE GRADES — less than
0.007% ash; 97-98% alpha cellulose content, FOR ALL GRADES — Standardization for consistent accuracy. Selection from a wide range of types. Every year many chemists who were once satisfied with other brands standardize their procedure on S & S Analytical Filter Papers for consistent accuracy lot after lot, large selection of grades, and the confidence that goes with using the finest. And the finest costs no more. Even if you are satisfied with your present filtration products, you owe it to yourself and your work to try S & S Analytical Filter Papers and filtration specialties and compare. Send for the free S&S Analysis Kit sampler described below. It costs you nothing, and there is n o obligation. FREE
Cryogenic Engineering Conference Engineering problems in t h e low t e m perature range will b e t h e principal subject of t h e second Cryogenic Engi neering Conference t o be held, September 5 t o 7 in Boulder, Colo. Topics to be covered include bubble chambers, in strumentation, properties of materials, insulation, a n d cryogenic equipment and processes. Information is available from P . L. Barrick, N B S Cryogenic Engineering Laboratory, Boulder, Colo.
O r g a n i c Chemistry Symposium
A n a l y s i s Kiîû
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Sampler with large assortment of 11 cm circles in wide selection of grades. Several quantitative papers included i in sampler also are available in sheets or s t r i p s f o r ' r , \ chromatography and electro-
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Carl Schleicher & Schuell Co.
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Keene, New Hampshire, Dept. AC-S6
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Please send FREE S & S A n a l y s i s Kit S A M P L E R . ;
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• Also send FREE S&S Quick Reference Catalog.; Circle Να. 32 A on Readers' Service Card, page 71 A
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hazardous or volatile fluids. I t fea tures t h e m o s t complete hydraulic test facilities in the country and is engineered for safety, accuracy, a n d flexibility. A b o u t half of t h e new 2500-squarefoot building is devoted t o control panels and calibration fixtures of vola tile fluids handling. T h e t w o dual cali bration units are used for production and research. T e m p e r a t u r e and flow control, automatic operation of t h e calibration cycle, a n d electronic timingarc all used.
Analysis of carbohydrates a n d cellu lose will be included in a n organic chemistry symposium a t Ontario Agri cultural College, Guelph, Ont., Septem ber 6. T h e Chemical I n s t i t u t e of C a n a d a is sponsoring t h e meeting. Among t h e 10 papers to be presented are New Physical M e t h o d s for t h e P u r i fication, Identification, a n d S t u d y of t h e Structure of Carbohydrates b y R . IT. Lemieux, University of Ottawa, and F r a g m e n t a t i o n Analysis of Cellulose, Starch, a n d Glycogen b y M . L. Wolfrom, Ohio State University. Details are available from D . A. Biggs, Ontario Agricultural College, Guelph, Ont., C a n a d a .
Perkin Centennial, September 10 to 15 T h e Perkin Centennial, commemo rating t h e discovery of aniline dyes, will be m a r k e d with a week-long program, September 10 t o 15 a t t h e WaldorfAstoria, N e w York. Sponsor is t h e American Association of Textile Chem ists a n d Colorists, with participation b y 27 technical, chemical, a n d scientific societies a n d t w o U . S. Government departments. I n addition to more t h a n 60 technical papers b y leading authorities from t h e United States and abroad, t h e celebra tion will be highlighted with a series of special events. T h e dates a n d subjects of technical papers of interest to analysts include : September 10, morning, COLORFASTNESS OF T E X T I L E S
A Century of Progress in Colorfastuess Test Methods, M. L. STAPLES, Ontario Research Foundation; Current D e velopments in Colorfastness Testing: France, J. P . NIEDERHAUSER, Com pagnie Française des Matières Colorantes; Current Developments in Colorfastness Testing: Germany, PAUL RABE, Farbenfabriken, Bayer, A. G. ; Current Developments in Colorfastness Testing: Switzerland, H E N B Y R I S , J. R. Geigy, A.G.; Current Developments in Colorfastness Testing: United Kingdom, P . W. CUNLIFFE, British Cotton and Wool Dyers Assoc.; Current D e velopments in Colorfastness Testing: U.
S.
Α.,
CHARLES
A.
SYLVESTER,
E. I. du Pont de Nemours & Co., Inc. September 11, afternoon, T H E PHYSICS OF COLOR
Color Control—25 Years of Progress, FRANK J. O ' N E I L , Pacific Mills; Prog ress in Measuring Color Differences, G. W. INGLE, Monsanto Chemical Co. September 12, morning, T H E APPLICATION OF COLORANTS TO FOOD
The Structure and Properties of PresentDay
Food Colors, SAMUEL
ZUOKEK-
MAN, I I . Kohnstamm and Co., Inc.; T H E PSYCHOLOGY OF COLOR.
Descrip
tion of Color, D E A N Ε B. JUDD, National Bureau of Standards; Seeing Light and Color, R A L P H M . EVANS, E a s t m a n
Kodak Co. ; Color in Industrial Design, WALTER
C.
GRANVILLE,
Container
Corp. of America. ANALYTICAL
CHEMISTRY
