BOROSILICATE
GLASS
C O S T S LESS T H A N PLASTIC WHEN YOU SPECIFY
MERTEX
®
DISPOSABLE CULTURE TUBES
INC PFALTZ & BAUER presents the latest in single-pan s p e e d b a l a n c e s by Paul Bunge One of the oldest and most reputable manufac turers of Analytical Semi-micro, Micro a n d Ultramicro Balances. (Est. in 1866). Experience a n d painstaking research have made the following features possible: Coaxial ly mounted weight control knobs, which are color coded, afford one hand operation with speed and simplicity.
1
The weight register, (which is also color coded t o correspond with the weight con trol knobs) is deeply recessed to eliminate light reflection a n d to provide a bril liantly projected scale at eye level. A very large working chamber (see speci fications below) which is accessible from either side. A red signal light which indicates a nonarrested beam.
NEW DISPOSABLE CULTURE TUBES FULFILL FEDERAL SPECS. NO. DD-G-541a and U.S. PHARMA COPOEIA REQUIREMENTS FOR TYPE 1 GLASS. -X-X•)f
-X-)f
Will not crack or break when either heated over an open flame or frozen. Annealed at approximately 1020F., strain free and chemically clean. Minimum alkali content. Non-contaminating. Do not affect the Ph of either the most delicate chemical solution or tissue culture cells. 5 Sizes: 75 χ 10mm, 75 χ 12mm, 100 x13mm, 100 x16mm, 150 x16mm. Surprisingly low priced. May be assorted with any of many other Mercer products for even lower cost. Call your supply house today or drop us a note for free samples of any sizes.
READING: 2I.72839G INSET OF SEWi.MICRO MODEL 200V
ANALYTICAL - MODE! 100V Capacity: 200g Sensitivity; O.lmg Precision: :±0.03mg Damping: Mechanical Weight selection: lOOmg 199.9g Knife edges and planes: synthetic sapphire Working chamber: 8 V 2 " deep 10V4" wide. e y 4 " high Pan & Bow: 4 " dia. X 7 / g " Tare: 27g built-in PRICE: $800.00
SEMI-MICRO MODEL — 200V Capacity: 100g Sensitivity: 0.0 Img Precision: 0.02mg = 1 micrometer division Damping: Air Mechanical Weight selection: lOOmg. - 99.9g Knife edges and planes: synthetic sapphire Working chamber. 8 Vi " deep, 1 0 % " wide, 8V4" high Pan & Bow: 4 " dia. χ 7 Va" Tare- 1 3 g built-in PRICE: $900.00
Overall dimensions: Ι ό ' Λ " deep, 1 1 " wide, 19" high Voltage: 1 lOv 50-60 cycle
MERCER GLASS WORKS INC. 725 Broadway, New York 3, New York Manufacturers and importers of over 5000 hospital and laboratory essentials Circle No. 48 on Readers' Service Card 58 A
·
ANALYTICAL
CHEMISTRY
PFALTZ
& BAUER, INC.
153 WAVERLY PLACE. NEW YORK 14, NEW YORK · ALGONQUIN 5-0300 Laboratory
Apparatus
and
Instrumentation
Circle No. 88 on Readers Service Card
