NIH EXHIBIT
CALIBRATED & CORRELATED
RGI
FLOWMETERS a new concept in FLOW MEASUREMENT • Individually calibrated with air to establish physical constants of meter and yield high precision. • New correlation based on Stokes' law permits calculation of calibration curve for any fluid for which only the density and viscosity are required. • Each meter serialized and supplied with calibration curve for air and water. Special coordinates convert this curve into a straight line. • Specially designed teflon* stops allow standard taper joints with precision bore ends to be attached to meter. " 0 " ring seal makes this connection vacuum t i g h t . " • Permanent ceramic scale and white background makes reading of black glass ball easy and accurate. • Fluid comes in contact with only glass and teflon* — ideal for corrosive fluids. SET OF JOINTS (COMPLETE) SIZE NO. T/S NO.
CAT. NO.
PRICE
1
10/30
F1121
6.90
2
12/30
F1221
7.15
3
14/35
F1321
8.10
4
19/38
F1421
8.70
5
24/40
F1521
9.30
FLOWMETERS, PLAIN ENDS RANGES ML/MIN AIR WATER
SIZE NO.
CAT. NO. PRICE
1-260
.01-5.2
F1100
2
10-1900
0.2-38
F1200
19.35
3
200-12,000
3-290
F1300
19.35
4
1000-36,000
10-850
F1400
23.20
5
3000-77,000
30-1900
F1500
23.55
1
* DuPont trade name for polytetrafluorethytene • * Patent Pending Write for Descriptive literature See your Local Laboratory Supply Dealer
ROGER
1 GREAT NECK ROAD · GREAT NECK, N.Y. Circle No. 111 on Readers' Service Card 64 A
•
ANALYTICAL CHEMISTRY
Exhibiting: New type Thomas-Seligson automatic Pipettor, new model ThomasSchôniger combustion apparatus, simplified "dead stop" Karl Fischer titration unit, Thomas-Hoover melting point apparatus with thermometer illuminator, Thomas bacteriological incubator-paraffin oven, Steers multiple inoculator (Replicator), Palmer physiological clamps, etc., Seligson ammonia diffusion apparatus, Oxford dialyzers, Spinco ultramicro analysis system, Beckman air comparison pycnometer, etc. The Torsion Balance C o . 35 Monhegan St. Clifton. N. J .
Exhibiting: Precision weighing equipment, chromatographic desalter, anaerobic jar, new direct reading Torsion balances. Traeerlab, Inc. 1601 T r a p e l o R d . W a l t h a m , Mass.
Exhibiting: Automatic low background counting systems and accessory equipment. Tri-R Instruments 144-13 Jamaica A v e . Jamaica 35, New York
Exhibiting: Thermistor type temperature indicators, controllers and recorders, magnetic and other stirring equipment, tissue homogenizer-Teflon pestles and tubes with direct and flexible drive apparatus, automatic egg punch, airborne infection apparatus.
G. K. Turner Associates 2524 Pulgas A v e . Palo Alto. Calif.
Exhibiting: Models 110 and 111 fluorometers, and various accessories including flow-cells, micro-cells, radiation dosimeter reader, paper chromatogram reader, uranium assay chamber, fluorescent microscope illuminator.
19.60
Each meter supplied with directions and correlation chart for calculating calibration curve for any fluid whose density and viscosity are known.
GILMONT INSTRUMENTS, INC.
Arthur H. Thomas Co. Vine St. a t Third Philadelphia 5, Pa.
Vanguard Instrument C o . Box 244 La Grange, I I I .
Exhibiting: Model 880 low background Autoscanner, 4 π radio chromatogram scanner. Model 880 ADS automatic data system for quantitation and digital pres entation of radioactive zones. Volumatic series fraction collectors for column chromatography. Video Engineering C o . , Inc. 5413 Georgia Ave., N. W . Washington, D. C . Exhibiting:
T V microscopy.
The Virtis Co ., Inc. Gardiner. Ν. Υ.
Exhibiting: VirTis research instruments: 45 & 23 Hi-Speed homogenizers, Extracto-Matic, filtered-air pipet dryer, mechanically refrigerated Freeze-Mobile, Quickseal freeze-drying flasks, sample temperature indicator-controller, photo cell tachometer. W a t e r s Associates 45 Franklin St. Framingham, Mass.
Exhibiting: Differential refractometers, liquid chromatography refractometers, flame photometers, laboratory refractom eters, in-line process refractometers. The W a t e r s C o r p . P. O. Box 529 Rochester, Minn.
Exhibiting: New linear flow-insensitive blood densitometer, new improved oxi meter, new low cost nitrogen gas analy zer, new multi-channel automatic switch ing thermistor thermometer, and other related instruments. The Welch Scientific C o . 1515 Sedgwick St. Chicago 10, I I I .
Exhibiting: Vacuum pumps, oscilloscopes, densitometers, science charts, balances. Will Corp. Box 1050 Rochester 3, Ν. Υ.
Exhibiting: Precision Dubnoff shaking incubator, Blackstone ultrasonic cleaner, Bronwill Biosonik apparatus, Bronwill Infusometer, Will Gyratherm, Gyratherm Jr., and Dylatherm, Mettler H-5, multi purpose balance, Rotocon assemblers, Gillings-Bronwill thin sectioning machine. Wilmot Castle Co. 1777 E . H e n r i e t t a Rd. Rochester 23, Ν. Υ.
Exhibiting: Orthovac sterilizer. Yellow Springs Instruments Co., Inc. P. O. Box 106 Yellow Springs, Ohio
Exhibiting: YSI instruments: Model 30 electronic hematocrit (1st time shown), thermistor-based temperature measure ment and control instruments and probes, laboratory recorders, psycho-physiological instruments, blood gas analysis equip ment, Model 47 automatic scanning thermometer, SETAR (Serial Events Timer and Recorder). C a r l Zeiss, Inc. 485 Fifth Ave. New York 17, N . Y .
Exhibiting: Research microscopes for brightfield, phase contrast, darkfield, polarized light, fluorescence microscope, photomicrographic apparatus and attach ments, spectrophotometer with fluores cence and chromatogram attachments, polarimeters, refractometer.
