BETHLEHEM Apparatus Company, Inc. - Analytical ... - ACS Publications

May 16, 2012 - BETHLEHEM Apparatus Company, Inc. Anal. Chem. , 1956, 28 (9), pp 59A–59A. DOI: 10.1021/ac60117a764. Publication Date: August 1956...
0 downloads 0 Views 206KB Size
Product Capsules Colorimeters. 64-page manual, "Cole­ man Tools for Science," available. Includes information on filter instru­ ment with wide choice of sample sizes: 9 curvette sizes and types; sample volumes from 10 ml. to .007 ml. Color­ imeter offers 4 ways to measure : optical density and % transmittance from either galvanometer or potentiometer scales. Coleman Instruments, Inc., Maywood, 111. 56A Crucibles, Platinum. Complete infor­ mation available on new polygon-shaped platinum crucible cited as retaining its shape indefinitely and being available with or- without reinforced rim, in all standard sizes. The flat sides of the polygon extend only part way down; the balance is circular. Bottom is flat. Baker & Co., Inc., 113 Astor St., Newark 5, N. J. 12A Densitometers. Bulletin available on densitometer for partition chromatog­ raphy and paper electrophoresis. Photovolt Corp., 95 Madison Ave., X. Y. 16, Ν. Υ. 39Α-2 Dipolemeter. Data sheet available on instrument for dipole-moment measure­ ments of liquids and gases. The capaci­ tance of the test cell and sample can be determined to an accuracy of ± 2 X 10~5 for liquids, and ± 1 Χ ΙΟ"6 for gases. Arka Imports, 754 Ladera St., Pasadena, Calif. 57A-1 Electrophoresis-DifTusion

FOR YOUR

MERCURY •

PUREST



B E S T in P a c k a g i n g



PROMPT

INSTRUMENTS

Quality Delivery

O u r I N S T R U M E N T M E R C U R Y is PURE to better than one part per ten million (Certificate of Analysis with every o r d e r ) . Our TRIPLE DISTILLED Q U A L I T Y MERCURY meets A.C.S, N.F., and A.D.A. specifications. Both are PACKAGED in handy "squeeze" bottle with dispensing tip. SHIPPED from stock in 1, 6, 16 and 65-lb. polyethylene bottles. Write for Bulletin I. M. and current prices on new Mercury. MERCURY CLEANING SERVICE

Send for Form 1155 giving details of our Cleaning Service. We make it a simple matter to have your contami­ nated mercury cleaned and returned to you as either Instrument or Triple Dis­ tilled Quality.

BA

BETHLEHEM Apparatus Company, Inc. HELLERTOWN, PENNSYLVANIA

For further information, circle number 59 A-1 on Readers' Service Card, page 71 A

Units.

Circle 59A-1 for complete information on instruments cited as having multiple optical systems arranged for rapid and efficient use, an optimum of automatic controls, and a single-unit construction. Also available is complete information on company's ultracentrifuges (circle 59A-2). Spinco Div. Beckman Instru­ ments, Inc., Belmont 7, Calif. 59A-1,2 Evaporating

Dishes,

Porcelain.

Catalog available. Includes informa­ tion on evaporating dishes suitable for a \'ariety of laboratory uses. Large range of sizes available, some with black glaze interior. Coors Porcelain Co., Golden, Colo. 47A-1 Evaporators. Folder providing detailed information available on unit that dis­ tills 100 ml. of aqueous solution at 55° C. in 10 to 15 minutes under the reduced pressure of an ordinary water aspirator. Suitable for batch or con­ tinuous operation, "Rotovap" is com­ pletely automatic and provides safe, rapid and efficient evaporation of either dilute or concentrated solutions, com­ pany states. E. Machlett & Son, 220 E. 23rd St., N. Y. 10, Ν. Υ. 24Α-1

OHAUS

ffoJ^ûJeigh

She m o s t m o d e r n p a c k a g e of w e i g h t sets ever offered

WEIGHT SETS

Every l a b can now have their weights in a shrink-proof, reinforced plastic, hinge-covered case. M o d e r n , functional design affords sure, easy grasping. AVAILABLE IN BUREAU OF STANDARDS CLASSES C - Q - P

V O L U M E 2 8, NO. 9 , S E P T E M B E R 1 9 5 6

for complete information tarife for FREE bulletin

OHAUS SCALE

CORPORATION

lOSO COMMERCE AVE. UNION, NEW JERSEY

For further information, circle number 59 A-2 on Readers' Service Card, page 71 A

59 A