Klett . . . Photometers Kleit-£u*tt*pt&iia*t PUoioe.lecti Cue QlaAâ. Cell
GalanUttetel·
the nature of W H A T M A N
BENCHKOTE
Benchkote is an absorbent paper coated on one side with polyethylene. For laboratory use—to protect bench surfaces—to keep them clean and free from stain and corrosion. The polyethylene coating prevents liquids penetrating through the paper and gives it wet strength and durability.
the uses of
W HAT M A N
BENCHKOTE
Here are some of a wide range of uses: • To localize and hold reagent spillage in radiochemical laboratories. Disposal of radioactive spillage is simplified since the paper can be readily ashed. • To localize and hold reagent spillage in chemical laboratories dealing with expensive materials or with dangerous substances. • For covering working surfaces of stone, tile, etc. to prevent glass breakages. • For lining the bottom of medical laboratory animal cages for the collection of excreta. • For saturating with disinfectant and covering the work benches in medical or microbiological laboratories where pathogenic and dangerous bacteria are likely to be present. • For lining humidity chambers where it will serve as a water or solvent wick. The polyethylene coating imparts high wet strength, facilitates handling. Write today for free samples and complete information. Whatman BENCHKOTE is available from your regular laboratory supply dealer or from SCIENTIFICA DIVISION
reeve angel 9 Bridewell Place, Clifton, N.J.
*JUe Klett
^-UtiOAimet&i
Designed for the rapid and accurate determination of thiamin, riboflavin, and other substances which fluoresce in solution. The sensitivity and stability are such that it has been found particularly useful in determining very small amounts of these substances.
KLETT SCIENTIFIC PRODUCTS PHOTOELECTRIC COLORIMETERS · BIO-COLORIMETERS COLORIMETER-NEPHELOMETER · COLONY MARKER • KLETT REAGENTS · GLASS CELLS.
Klett
Manufacturing Co., Inc.
179 EAST 87TH STREET, NEW YORK, Ν. Υ. Circle No. 32 on Readers' Service Card 132 A
•
ANALYTICAL CHEMISTRY
Circle No. 67 on Readers' Service Card
