Product Capsules Centrifuges, Refrigerated. Circle 40A-1 for literature on the Model LR refrigerated centrifuge that utilizes four interchangeable rotors. Refrigeration system employs forced air circulation through side and bottom cooling areas. Lourdes Instrument Corp., 53rd St. and 1st Ave., Brooklyn 32, Ν. Υ. 40Α-1 Centrifuges, Refrigerated. Bulletin available on superspeed refrigerated centrifuge. Seven interchangeable rotors. Capacities: from 400 ml. or less at superspeed, to 2,000 ml. at lower speeds. 16,000 rpm (32,700 X G). Ivan Sorvall, Inc., Norwalk, Conn. 64A-2 Chromatogram Scanner. New chromatogram scanning system locates and measures radioactive constituents auto matically. Circle 28A-2 for data on how the new system increases accuracy of radioassays. Tracerlab, Inc., 1601 Trapelo Rd., Waltham 54, Mass. 28A-2 Clamps and Supports. Circle 83A for bulletin on 42 versatile, light weight castaloy clamps, holders and supports. Alloy used has tensile strength of 47,000 psi. Fisher Scientific Co., 100 Fisher Bldg., Pittsburgh 19, Pa. 83A
Cup Sink Drains. Brochure available on polyethylene corrosion-resistant cup sink drain. Available in 3" by 6" stand ard oval shape, drain is strong, resilient, impermeable and non-oxidizing. Ameri can Agile Corp., P. O. Box 168, Bed ford, Ohio. 85A-3 Electrodes, Platform Disc. Circle 29A for information on platform disc L4081, a high-density graphite that pro vides penetration resistance. National Carbon Co., Div. of Union Carbide Corp., 30 East 42nd St., Ν. Υ. 17, Ν. Υ. 29Α Electron Microscopes. RCA electron microscopes are compact, one-piece units that provide useful photographic enlargements up to 300,000 X. Circle 24A for complete data. Radio Corpora tion of America, Camden, N. J. 24A Electrophoresis Instruments. Bulle tin available on new Spinco continuousflow paper-curtain electrophoresis in strument that separates all kinds of charged substances, handles dyes and intermediates, carbohydrates, follows organic reactions, and does immuno chemical work. Aloe Scientific, Div. of A. S. Aloe Co., 5655 Kingsbury, St. Louis 12, Mo. 65A-1
Evaporating Dishes. Coors evaporat ing dishes are cited as being suitable for many diversified uses and are avail able in a large range of sizes (some with black glaze interior). Coors Porcelain Co., Golden, Colo. 70A-2 Flasks. "Pyrex" brand volumetric flasks and pipettes provide accuracy, mechanical strength, chemical and heat resistance. Limit of error of 2000 ml. flask is ±0.50 ml. Details available. Corning Glass Works, 72-6 Crystal St., Corning, Ν. Υ. 38Α Fluorimeters. Klett fluorimeters are designed for the rapid and accurate determination of thiamin, riboflavin, and other substances which fluoresce in solution. Klett Manufacturing Co., 179 East 87 St., Ν. Υ., Ν. Υ. 43Α-2 Furnaces. Bulletin available on tube type laboratory furnace cited as being ideal for bright annealing, brazing, heat treatment, hardening, sintering, reduc ing metal powders, silver soldering, and nitriding. Laboratory Equipment Div., Lindberg Engineering Co., 2440 W. Hubbard St., Chicago 12, 111. 68A-2 (Continued on page 61 A)
Measures water content better than 1 part per
Compact; Economical
1,000,000 !
LABORATORY BOX FURNACE (Types B-2 and B-6)
MODEL W ELECTROLYTIC MOISTURE ANALYZER
Useful ώ Applications:
• Analyzing " F r e o n " and Sulfur Dioxide refrigerants.
