QUALITY
Klett . . . .
is
Obvious
Photometers
in Pure RLP Latex Laboratory Tubing
Klett-Summerson
24 SIZES Photoelectric Glass Cell Calorimeter No. 900-3
! .D.
VI6
1/32' ·,/16 Ι/ίΛ' 3/32' Ï/R" 1/1* 3/32' Ι /Η' 3/ίο ι/Ιό'
j/\&' 5/16' t/R" 3/8" 3/8" 3/8"
χ χ χ χ χ χ
?/8" 3/16 1/1'. 3/3-ί ;..-a 3/1ί
/Ί'
The Klett Flourimeter
VAili « χ » χ χ « χ . χ χ
/B" /8" 1/ΊΛ' 1/io' V16' /4" .'4" /4"
P u r e liquid latex, no min erals or coagulants used— a b s o l u t e l y non-toxic — strong—seamless, smooth inside and out—long life. PHYSICAL PROPERTIES Purity —Specific gravity .98 Strength—4500 lbs. per square in. Elasticity—Elongation 850% Resiliency—Durometer hardness 35 — 5 Ask your laboratory supplier for samples
Rubber Latex Products, Inc. Cuyahoga
Falls,
Ohio
Circle number 36 A-3 an Readers' Service Card, page 39 A
No. 2070
Designed for the rapid and accurate determina tion of thiamin, riboflavin, and other substances which fluoresce in solution. The sensitivity and stability are such t h a t it has been found particularly useful in determining very small amounts of these substances.
The
Aristocrat
CENTRIFUGE AN OUTSTANDING ADVANCEMENT IN CENTRIFUGE DESIGN KLETT SCIENTIFIC PRODUCTS ELECTROPHORESIS APPARATUS · BIO-COLORIMETERS GLASS ABSORPTION CELLS · COLORIMETER NEPHELOMETERS · GLASS STANDARDS · KLETT REAGENTS
Klett
Aristocrat Centrifuges can be designed and engineered to meet SPECIAL requirements it you desire. Write us about it.
Manufacturing C o .
179 EAST 87TH STREET, NEW YORK, Ν. Y. Circle numbers 36 A-1, 36 A-2 on Readers' Service Card, page 39 A
36 A
One of the most compact centrifuges ever designed—bowl, motor and all working parts are ENCLOSED in a handsome floor model steel cabinet. All controls and indicators mounted on a single recessed panel in front. Its moderate price, advanced design'and long life make it the outstanding value of them all.
PHILLIPS-DRUCKER ST. L O U I S 1 0 , M I S S O U R I Circle number 36 A-4, an Readers' Service Card, page 39 A
ANALYTICAL
CHEMISTRY
