THROW-AWAY CARTRIDGE
DE-IONIZER PRODUCES CHEMICALLY-
PURE WATER RIGHT FROM THE TAP
CALIBRATION ACCURACY: METICULOUSLY MAINTAINED!
NALGENE®
INSTANT PURIFIED WATER O p e n the tap or unclamp the tubing — you get chemically-pure water at once. R u n only as much as you need — a few ounces or a bottle-full.
CHEMICALLY EQUIVALENT TO TRIPLE-DISTILLED Note the purity of effluent shown in speci fications below. De-ionized water is ac cepted by U S Pharmacopoeia as equiva lent for all but injection solutions.
USED ONLY WHEN NEEDED With this Cartridge De-Ionizer, your pure water is actually " o n tap." You can come back for more at any time — it's always available. H o w rate is generous — 5 gph.
CONVENIENT— EASY TO INSTALL You snap the Cartridge into the Wall Bracket, o r clamp it into the Mounting Fixture. T h e resin changes color as ex h a u s t e d — a clear line shows how much capacity remains. Write for Bulletin CD161 giving full details. RESEARCH MODEL UNIVERSAL MODEL Removes all ionizable Removes all ionizable solids including silica solids, except silica and and ('();. Average in ef V-O-2. Suitable for general fluent less than 0.5 pprn pure water needs. total solids. Capacity, 1000 grains as Capacity, 500 grains as CaCO.i. CaCOs. Flow Rate, 5 gph max. Flow Rate, 5 gph max. Price, ΙΠ.75 Price, JI2.50 WALL BRACKET with slip-mi connection to water $7.50 MOUNTING FIXTURE, clamp-in type for linepressure use $12.00
UNBREAKABLE
P I P E T S offer all the accuracy you've been accustomed to from glass—without any of the hazards. Every Nalgene pipet is individ ually calibrated for maximum precision. The limits of error do not exceed 0.06 ml for the largest size pipets. What's more, you can read a Nalgene un breakable pipet easily and accurately. Big, bold "Magni-Vue" markings, in vivid color, are fused on . . . permanently. These mark ings cannot be removed chemically or me chanically. Repeated autoclaving will not dim their original appearance. They can't fade, rub off, scrub off or wear off—ever! Nalgene unbreakable pipets are made of rugged, chemically-resistant polypropylene. This non-reflective material prevents both ersome light glare. You see the entire liquid column clearly. There's no meniscus to in terfere with the accuracy of your readings. Nalgene unbreakable pipets are available in transfer, serological and measuring styles, sizes 1 ml to 10 ml. Priced from $2.10 to $2.80 each. See your lab supply dealer, or write Dept. 1109, The Nalge Co., Inc., 75 Panorama Creek Drive, Rochester, New York 14625.
NALGENE LABWARE
Leader in quality plastic labware since 1949
Order from Vour Laboratory Supply House
ILLINOIS WATER TREATMENT CO. 8 4 0 Cedar St., Rockford, I I I , Circle No. 81 on Readers' Service Card
Circle No. 98 on Readers' Service Card VOL. 3 6 , N O . 1 0 , SEPTEMBER 1 9 6 4
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