Fisher Scientific A Single Source for All Your Laboratory Needs Fingertip guide to our 50,000 products Brand new Fisher Catalog 74 is the most up-to-date, easiest to use laboratory catalog now available. It includes not only all apparatus, instruments, supplies but the entire Fisher Chemical Index as well. Three separate product indexes help you locate exactly what you need quickly and easily. For your copy, call your local Fisher representative (phone numbers at end of Section) or circle no. 168 on reply card.
An Accumet® pH meter for every pH situation
Recordall® Recorders — priced 1/3 to 1/2 less than comparable models
Accumet 291: A precise digital pH meter over full range and a digital thermometer over 0 to 100°C range. Precise to ±0.01 pH; ±1,0mv;and ±1°C. Accumet 520: Digital readout to ±0.001 pH over entire range and electrode potentials to ±0.1mv over ±1400mv. Accumet 420:1 n expanded mode, read pH to ±0.001 unit in pH 6.000-7.999 range and potential to ±0.1 mv over ±199.9mv. Bright 4-digit display. Accumet 320: Expanded-scale analog meter. Expand any 1.4pH or 140mv portion to full span of 8" meter. Maximum sensitivity. Accumet 230: Moderate-priced, general purpose instrument. Expanded mv range for selective-ion electrodes. Many unique features: • Sprocketless paper drive — self aligning and accurate. Uses full sheets without annoying and costly sprocket holes. • Patented transducer gives infinite resolution, infinite life and no sliding contacts. No cleaning and trace "glitches". No zero wear out. • Push-button selection of 4 (11 optional) speeds with instant response. Independent of line frequency. No gears or clutches. • Disposable nylon-tipped pens end complicated cleaning procedures and ink spillage. • Easy front-loading paper. • Total scale zero control.
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Fisher Scientific Co.
Accumet 140: Versatile, rugged enough for schools and factories that don't require readings closer than ±0.05pH or ±5mv. Accumet 150: Completely portable . . . battery operated. Excellent for environmental field work. For full information on entire Accumet line, circle no. 169. Other pH meters available through Fisher: Corning (circle no. 170) and Orion (circle no. 171)
TEN MODELS: complete line of one and two-pen recorders; manual or electric pen lift; 11 chart speeds; one or 5 input spans. For bulletin, circle no. 173. Other recorders available from Fisher: Coleman (circle no. 174) and Corning (circle no. 175).
Fisher Electrodes for every pH meter Unusually comprehensive line (glass, reference, combination, specialized) for analytical, research, industrial applications. Can be used with virtually all modern American and European pH meters and potentiometric titrators. Circle no. 172 for electrode catalog.
LABORATORY GUIDE
AUGUST 1974 95 +LG
Greatest collection off laboratory balances
Lab baths to heat, circulate, shake
Mettler Analytical Balances: Workhorse instruments for just about every lab job. From 1ftg to 1000g capacity; precision to ±0.001 mg. Circle no. 176. Mettler Top-Loading Balances: Deliver hundreds of thousands of weighings even when subjected to rugged production-line use. Circle no. 177. Mettler Electronic Balances: Automated weighing. Results from control and digital readout units fed directly to automatic processing system. Circle no. 178. Ainsworth Analytical Balances: Highprecision 1-pan balances for 30-second weighings by substitution methods. Circle no. 179.
i Ainsworth Automatic Electric Top Loaders: Mg to kg weighings... fast. Can be connected to peripheral data processing equipment. Circle no. 180. Torsion Balances: Electronic 1-pan balances . . . rugged top-loading balances with optical projection readout... dial-reading balances for fast weighings . . . high-capacity balances. Circle no. 181. Cahn Electrobalances: Weigh samples in mg or /*g with 0.1 ^g precision. One model measures mass and force changes in high vacuums. Circle no. 182. Ohaus Balances: Moisture balances . . . 2-pan Harvard Trip balances . . . single hanging-pan balances with 2 to 4 beams . . . versatile triple-beam balances . . . low-cost single pan balances... heavy-duty balances for solutions. Circle no. 183.
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Circulating baths: 10 models (from Fisher, Blue M, Haake, Lauda, Thermolyne, Precision). Circulate water or oil heating media... heat up to 100°C. One bath filters circulating water through a 15/xrn filter. Shaker baths: 5 models that agitate as well as heat — from Blue M, Haake, Lauda, American Optical, Precision. Speeds variable up to 200 oscillations/min . . . heat to 120°C. Interchangeable trays and clips accommodate varied types of glassware. Also, a model that supplies gas to bath for controlled atmospheres. Multi-purpose baths: A dozen functional all-round heating jackets (Fisher, National, Precision) that provide constant temperatures. Add separate circulating pumps as needed — Fisher stocks dozens of them. All models described in Fisher's new Catalog 74. Circle no. 168 for your copy.
11 Isotemp® Ovens and I n c u b a t o r s . . . the most efficient heating anywhere Super convenient, functional features: resistant, easy-to-clean chambers... no tip shelves... easy-to-reach side-mounted controls... leveling feet... removable vent caps .. . crisp, modern good-looks. Wide selection: Forced-draft ovens. Set temperature with digital d i a l . . . no fine-tuning. Solid-state proportional temperature control gives maximum uniformity, highest efficiency. Gravity convection ovens. Dual thermostat prevents overheating in case of malfunction. Temperature set dial conveniently calibrated in°C. Vacuum Ovens: Hi-Temp model has automatic safety thermostat... heats to 2 W C . Excellent vacuum holding. Isotemp Incubators. Double-door construction keeps chamber at set temperature. Transparent inner doors (safety glass) give view of contents without disturbing chamber heat. Low-Temperature Incubator. Digital temperature switch on door; just dial in temperature. Solid-state proportional control keeps heat constant to ±0.2°C. Holds 300 BOD bottles. Door locks. Circle no. 184 for complete product bulletin. Other high quality ovens available from Fisher: Blue M (circle no. 185); Napco (circle no. 186); Precision (circle no. 187); Thermolyne (circle no. 188).
LABORATORY GUIDE
The most extensive line of Hollow Cathode Lamps
150 FISHER brand9 Pipets for every application
What type of spectrophotometer do you need? You'll find it at Fisher Fisher named semi-exclusive dealer for important new B&L line. Includes new Spectronic 400-4 — a custom modular system with automatic sampling, diluting, data printout. .Spectronic 100 — a medium-priced digital readout instrument. Spectronic 700 — with narrow 2nm band pass, high stability. Spectronic 200 — wide range (190-800nm), built-in scanning. mini-spec 20 — small, portable, batteryoperated, with 400-700nm range. Circle no. 194 for literature package.
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Also: many, many more well-known spectrophotometers for any need.
311 Fisher has lamps that will fit all major AA instruments: Aztec, Beckman, B&L, EEL, Corning, Hilgerwatts, IL, Jarrell-Ash, NIL, Perkin-Elmer, Livre-Optica, Unicam, Varian Techtron, and Carl Zeiss. Any they're the finest lamps available on the market today. • No monthly conditioning required • Two-year shelf life • Highest spectral output • Excellent stability • Low noise • Patented design • Can be interchanged without optical realignment. For a bulletin that lists dozens of models available (single and multi-element), circle no. 189.
Everything to m a k e your lab OSHA perfect • Safety Cabinets — meet OSHA specs for flammable storage. • Safety cans — for storage, dispensing, disposal of flammables. • Fire blanket — smothers lab and clothing fires fast. • Fire extinguishers — all kinds. • First aid supplies — eye/face washes, showers. • Personal protection — respirators, gog gles, gloves, tongs, aprons', shields. • Dozens of other safety essentials — most meeting OSHA specs. New Fisher Safety Manual describes them all... circle no. 190 for a copy.
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• Unconstricted, uniform tip opening • Ground, beveled, tempered tips Φ Large numbers & sharp graduation lines • Permanent, fused amber markings • Vital identification statistics • Color-coded bands • Blow-out pipets clearly distinguished • Flat, beveled tops FISHER brand Pipets include: Micro Folin, Dual Purpose, Ostwald Folin, Volumetric, Mohr, Long-Tip Mohr, Serologicals (regular, and with cotton filter top, long-tip, or large opening), Kahn Serological, Kolmer Serological, Bacteriological, Water Analysis, White Back Lambda, Kirk Micro, Micro Transfer, Graduated Kirk, Lang Levy Micro To Contain. Circle no. 191 for full catalog. Also: complete selection of KIMAX® brand, PYREX® brand, COREX® brand and Nalgene® glass pipets . .. disposable pipets from Falcon, Kimble and Fisher/Corning.
Whatever you have to stir, Fisher has the stirrers Magnetic Stirrers: Choose from a half dozen models (Fisher, Corning, Thermolyne). Some fitted for mounting on distilla tion or organic synthesis set ups. Others feature illuminated bases to highlight titration endpoints. One model heats and stirs simul taneously. Circle no. 192. Impeller stirrers fill many needs: one provides constant speed regardless of vis cosity changes. Others handle heavy loads like 10 gallons of viscous liquid. One model gives speeds up to 6000 rpm. All with induction motor and impeller shaft. From Fisher, Eastern Industries. Circle no. 193.
Moderate-priced workhorse instruments: Turner Model 350 and 330 . .. Coleman Junior II (325-825nm)... Coleman Jr.JIA (linear absorbance). Circle no. 195.
Advanced research grade instruments in medium price range: Coleman I I I . . . Coleman 139. Circle no. 196. Fast, easy digital readout: Coleman Model 54 (accessories for building analytical sys tem) ... Coleman 46 (T,A, concentration, and cell compartment temperature.) Circle no. 197. Double-beam ratio recording: Coleman 124 and 124D (accessories for complete sample handling system)... Coleman Model EPS-3T. Circle no. 198. Choice of versatile sampling compartments: B&L Spectronic 70 and 88. Circle no. 199.
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Handsome Contempra™ Furniture Accessories make labs and offices more efficient
More than 12,000 reagent chemicals
Fisher Scientific Company
All color-coordinated to Contempra Furniture units. Available direct from Fisher branch stocks. Office furniture: everything from single and double-pedestal desks to swivel and side chairs... tables and file cabinets... all you need for a complete in-the-lab office. Stools and chairs: of every description — fiberglass, metal, upholstery, wood . . . with adjustable heights... and humanengineered to fit every posture. Storage cases: for wall, floor, or under counter... with sliding doors of glass, chalkboard, metal and tackboard.
U.S.
Versa-Table Units: for microscope, balance and other sitting work — many units to choose from. One is adjustable . . . mount them between base units or on legs to suit the lab situation. Circle no. 200 for a catalog.
8 4 Castaloy -R Clamps and Holders outlive iron or aluminum by up to 500% • Strong • Cant rust or corrode • Non-slip gripping surfaces • Hold objects small as V32"; large as 3%" Find any kind of clamp you need: • Expansion clamps (hold hosecocks, bot tles, thermometers, irregular-shaped ob jects) » Clamp holders with 45° angle thumbscrews • Utility clamps • Clamps—for burets, thermometers, glass tubing, electrodes, water bath accessories • Hosecocks and pinchcocks—manual and electric; for tubing down to W Φ Even more, for just about any set-up possible. For full product bulletin, circle no. 201.
Flexaframe lattices support the most complex assemblies You can quickly assemble a strong, adjusta ble framework. Rods are hard aluminum alloy, centerless ground to a precise W diameter... considerably stronger than iron pipe of the same size. Available in standard sets that make up to racks measuring 2x2', 2x4', 4x4', 4x6'. Circle no. 202 for bulletin.
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Telephone your closest Fisher Branch for fast service
Atlanta (404)261-4120
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Chicago
Raleigh
(312) 379-9300
(919) 876-2351
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Over 500 Fisher Certified Reagents meet ing or exceeding ACS specifications. Full lines of buffers, solvents, atomic absorp tion standards, standardized solutions, sol vents for pesticide analyses and spec trophotometry. ACS solvents in Safe-Tin™ cans: Get a full 4 liters for the price of a U.S. galjon. That's a 215 ml bonus per can; 860 ml bonus per case of 4 cans. Cans meet OSH A requirements for storage of flammable solvents in non-glass containers. Tin-plated steel. Pressuretested, with soldered seams. Bright yellow and red colors spell caution. Circle no. 203. Ready-to-use scintillation cocktails. Just add radioactive sample . . . shake . . . and count. ScintiVerse™ is a universal cocktail for all sample types. ScintiLene™ is a xylenebase cocktail for non-aqueous samples. ScintiDiox™, a dioxane-base for watersoluble organics and biochemicals. Circle no. 204 for a bulletin on these and other Fisher scintillation reagents.
San Francisco (408) 249-0660
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(305) 857-3600
Canadian Edmonton, Alberta
Quebec, Quebec
(403) 455-3151
(418) 656-9962
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Winnipeg, Manitoba (204) 284-0802
International Contact the International Division at Springfield, N.J. for the location and phone of any of the 124 dealers located throughout the world. (201) 379-1400.
LABORATORY
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