3140
CENTRIFUGAL SEPARATION
\ iscosity
ON YOUR MIND?
directly
in
centipoises
HOEPPLER Viscosimeter PRECISION MODEL
The Hoeppler Viscosimeter provides a fast, accurate method of determin ing the viscosity of gases, liquids, oils, plastics, syrups, viscous tars and dark liquids. Operates on the falling ball principle. Shows absolute viscosity in centipoises. From 0°C to 100°C. Direct readings in centipoises (or centistokes). From 0.01 to 1,000,000 centipoises. Accuracy 0.1% to 0.5%. Small sample (30cc) required. Results consistent and reproducible. Price $350. Interchangeable spare parts available. Write for Bulletin HV-303
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UBBELOHDE Viscosimeter on the principle of the suspended level
It illustrates and describes
WESTERN STATES CENTRIFUGALS and points out exclusive, bonus features which will renew your hope for the ultimate in mechanical equipment. Your request also will bring an application question naire which will reveal the factors necessary to convert your requirements into mechanical terms. Ask for Bulletin No. 3140. It's FREE, and you're welcome.
The
WESTERN STATES Machine Corporation 1702
FAIRGROVE AVENUE HAMILTON, Circle No. 10 on Readers' Service Card
OHIO
A capillary-type viscosimeter for determining the kinematic viscosity of any true viscous liquid, such as petroleum products or lubricants. See American Society for Testing Materials, A.S.T.M. designation D 4 4 5 53T. Measures viscosity with an error not greater than ^ 0 . 1 % , when used at efflux times of 90-1000 seconds. In all capillary sizes as called for by the A.S.T.M.—calibrated or uncalibrated. Uncalibrated capillary, $20. Calibrated, $38. Metal frame to fit capillary, $6.50. Write for Bulletin UV374
Absorption Type Colored Optical Filter Glass Processed in our New Rochelle Optical Shop in about 100 types for the ultra-violet (from about 2 50 πιμ), visible, and infrared (to about 3,000 ηΐμ) spectral regions. Available in flat or as solid bars for the manufac ture of tubing for liquid laser excitation. A l s o Anti-Laser Eye-Protection Filter Glass EG-18
FISH-SCHURMAN CORPORATION 72 Portman Road, New Rochelle, Ν. Υ.
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No.
0 0 in the ADVANCES IN CHEMISTRY SERIES
LABORATORY
ABELS
SALINE WATER CONVERSION—II The 14 papers in this book were based on symposia sponsored by t h e Division of Water a n d Waste Chemistry at t h e 139th a n d 141st National Meetings of t h e ACS in March 1961 a n d March 1962, respectively.
CONTROL
SAMPLE
CONTROL
SAMPLE
DATE
Different m e t h o d s reported here include: spray evap oration . . . phosphate precipitation . . . vibration . . . wiped t h i n - f i l m distillation . . . the use of t h e diffusion still . . . t h e use of t h e osmotic m e m b r a n e . . . flash evaporation utiliz ing solar energy. Cost problems are fully covered. There are a b u n d a n t charts a n d illustrations. INDUSTRIAL STANDAM
Authors provide experimental data a n d discussion f r o m work in t h e U. S., Canada, Australia, South Africa a n d Israel. Both basic a n d applied research is covered.
Rapidly replacing old and expensive labeling programs — Laboratory tested tapes and labels can be ap plied conveniently and inexpensively, at a time saving rate.
All those concerned with technical aspects of saline water conversion will want this up-to-date c o m p i l a t i o n of significant papers on t h e subject.
Proven to withstand all tempera tures ranging from —70° to - f - 5 5 0 ' and varying conditions of moisture and humidity, they are scientifically produced with adhesive* that really stick.
199 pages.
Paper bound.
COK NO BATCH HO DATE
Price: $6.00 Write for samples and descriptive Do it today!
literature.
Order from : Special Issue:; Sales, American Chemical Society 1155 Sixteenth Street, N. W., Washington 6, D. C.
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