NEW PRODUCTS
Graduated Beakers. Polyethylene beakers with handles come in two sizes, 2500 ml. and 1250 ml. Graduations are in pints and milliliters. The Nalge Co. P-51
Air Stirrer. Air-driven Model 4000, V 2 hp., operates at from 0 to 2000 r.p.m.; has 15-in. shaft and 3-in. propeller, both stainless steel. Maximum free-air consumption at 80 p.s.i. is 13.5 c.f.m. Grenier & Co. P-52
Housed in weatherpioof shelter for air pollution and radiological fallout studies. Gelman Instrument Co. P-55
autoclaving. Available in six sizes from 25 ml. up to 1000 ml. American Agile Corp. P-59
Aspirator Pump. Polyethylene unit operates on water pressures from 11 lb. up. Useful for corrosive liquids. Tapered hose connector takes up to 3 / s -in. tubing; male thread for faucet is V s -in I P . Over-ill height is 6V 4 inches. Fisher Scien,ific Co. P-56
Teflon Tubing. Features claimed are low permeability, extreme chemical resistance, and suitability for service at temperatures to 500° F. Available in sizes from 0.10 to one inch, and larger. Millimeter sizes are available from stock. Pennsylvania Fluorocarbon Co.
Filter Pump. C.R.C. Airexpelor features stainless steel ball and socket in its nonfouling valve. Other parts are of brass. Faucet connection is through a 1 / 4 -in. female thread and 3 / 8 -in. male thread. The unit is 51/2 inches long. The Chemical Rubber Co. P-57
Reflux Condenser. Model 7-748 consists of 2 1 / 2 -in. diameter by 4 1 / 2 -in. long bulb, with outer standard taper 24/40 joint at top and inner standard taper 24/40 at bottom. Over-all height is 9V 2 m · Units can be stacked for increased efficiency. Fisher Scientific Co. P-53
Film Replica Gratin»);. Gratings are about 8 inches wide, with about 71/2 inches covered by replica lines, 13,400 to the inch. Thickness is about 0.005 inch, and dispersion is. said to be about 24%. Combination package includes two 8 X 5 1 / 2 -inch pieces, one transmission and one reflecting. Price $2. Edmund Scientific C:>. P-58
Linear Amplifier. Model 358-1 is said to recover from a 4000X overload in 8 sec. Over-all gain is 70,000 with stability of 0.9% for line voltage from 105 to 130 volts. Maximum counting rate is 250,000 per sec. random. Franklin Electronics, Inc. P-54 Air Sampling Vacuum Pumps. Units, activated by graphite ringed pistons, come in capacities of 2 or 4 c.f.m.
Graduated Cylinders, Items, made of polypropylene, can be sterilized by
2 MORE REASONS... why modern labs a r e s w i t c h i n g to LABASCO CLAMPS L-3100 STRUCTO FRAME CONNECTOR Easily removed, tempered, plated spring «lips permit connector to • be removed without disturbing Mhe apparat»! support, threaded fastener never contact» or burrs the rod! This friction grip damping principle has been proved vastly superior titrough many years of use m automotive applications . . . NO TOOLS R£-
•
L-3300 STRUCTO FRAMt BASE Features an upright sleeve with mom than 100% greater height than conventional trame bases. This permît* use of taller rods, a i : ores greater rigidity and true alignment U r the entire apparatus frame. NO TOOLS RtOUiRtD FOft ASSEMBLY! Ea. $.70 — Do*, let: Ea, $.63
TODAY
SCHAAR « COMPANY 7 3 0 0 W . Montrose Ave, C+iteaga 3 4 , U t ,
CAfiOmAl- PRODUCTS, B. P R E I ; ί R COMPANY, INC, IMC P.O. Box 1611 P.O. Box β ΐ ΐ β 16&-1S1 Henry St. Durham, N.C. Charleston, W . Vs. New Haven 11, Gomu THE CHEMICAL RUBBER INDUSTRIAL SCIENTIFIC, STANDARD SCIENTIFIC co. me, S»P,»I.Y eo«p. MACAL.ASTER B1CKMELL eo.
LABASCO
2 3 i O Superior Ave. ç*«ve4«n«l· 14., «ftfco
ί β β ο fthoits Street ***. Worn», Texas
« 0 » Broadway New Vt-rk 3 , Ν.Υ.
•k See tabasco's full page ad on Page 29A Circle No. 154 on Readers' Service Card
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ANALYTICAL CHEMISTRY
Film Badge Service. Continuous cumulative dosage reports for each subscriber, plus 24-hr. reports on request, are given. Dosimeter film registers ra* diation ranges from the softest stray, scattered, and beta radiation to high energy gamma and x-ray. Atomic Film Badge Corp. P-62 Utility Ovens. Test-All Series has temperature range from 40° to 180° C , and features motor-driven turbo blower convection. Available in 10 bench models and 10 floor models of capacity from 1.5 to 24 cu. ft. Blue M Electric Co. P-63
Structural Building Units. Clamp fastener and structural building unit assembly consists of a mounting angle and a linking clamp. Clamp hole sizes are for 1 / 2 -in. rod or tubing, 1 / 4 -in. or V g -in. pipe, or 3 / 8 -in. armored cable. Versa-Loc Corp. P-65
Ea. $.55 — Doi. Jot: Ea. $,SO
FOR BULLETIN
Humidified Incubator. Unit has mechanically convected air circulation, said to provide temperature to ±0.5° C. Humidity range is from 30% to 98%. Features wet and dry bulb thermostatic control, with direct reading hygrometer. Chamber volume is 25 cu. ft. Electric Hotpack Co. P-61
Differential Voltmeter. Model MV212C measures voltage differences from 0.7 mv. to 300 volts in the frequency range from 20 c.p.s. to 500 kc. Accuracy is said to be 3%. Millivac Instruments Div. P-64
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WRITE
P-60
Λ-2Ι78
Transistorized Analyzer. Transistorized 256-channel analyzer, Model CN110 features compactness and light weight, with interchangeable plug-in logic units for pulse height analysis, neutron time-of-flight studies, and counting as a function of time. Height is 8 3 / 4 in. and weight is 40 lb. Technical Measurement Corp. P-66 Microtome Diamond Knife. Knife and holder assembly is designed for use with the Servall Porter-Blum ultramicrotome. Said to be ideal for sectioning biological materials, bone, wood, and plant fibers, soft metals, and other materials. Ivan Sorvall, Inc. P-67
