New!
ISAVE SHAPES
BY
MICRO CELL HOLDER AND MICRO CELLS
WITH
FOR THE BAUSCH & LOMB SPECTRONIC 2 0 PHOTO COLORIMETER NOW A V A I L A B L E : A d a p t your Spectronic 20 to micro s a m p l e s w i t h t h e new MISCO micro cell holder and micro cells. Three types of micro cells are available. Determinations can be made with as little as 200 microl i t e r s t o t a l v o l u m e . The micro cell can be emptied automatically at the touch of a button, allowing measu r e m e n t of s a m p l e s w i t h speed and precision without removing the cell itself.
OF
[TEFLON EXTRUDEDJ BY
REPLACE IT AS A UNIT1 Get more use f r o m y o u r Spectronic 20
I no {machining \no molds \no wasted {material
Go t o t h e MISCO M i c r o System
IIIICROCflCiillCflL 1825
EASTSHORE
SPECIALTIES CO.
HIGHWAY
BERKELEY
10. CALIFORNIA
Circle No. 67 on Readers' Service Card
NOW
You get high q u a l i t y Teflon parts at low cost b y having PF extrude shapes to y o u r d e s i g n . PF e x t r u d e d shapes a r e w i d e l y used in chemical a n d mechanical applications as fluid separators, feeding tubes, channels, seals, a n d f o r other uses where Teflon's unique properties offer b i g a d v a n t a g e s .
A LOW COST METERING
PUMP FOR
PF Teflon shapes offer:
SULPHURIC ACID AND OTHER
STRONG OXIDIZING AGENTS
Model T6SH opens to permit change of tubing easily — quickly.
SIGMAMOTOR Inc. »
MIDDLEPORT, N E W YORK
Circle No. 84 on Readers' Service Card 96 A
·
ANALYTICAL CHEMISTRY
complete chemical inertness — won't contaminate other materials
•
widest service temperature range of any plastic: - 4 5 0 ° F to +500°F
•
lowest coefficient of friction of any solid material; best non-stick qualities
•
very low permeability, easy cleaning
Now a
special formulation of Hypalon makes the dependable SIGMAMOTOR Pump applicable for metering sulphuric acid or other strong oxidizing agents. Liquid is forced through Hypalon tubing by wave-like action of steel fingers. Never contacts metal.
47 N O R T H M A I N S T R E E T
•
PF extrudes Teflon shapes to extremely close tolerances, cuts them to l e n g t h , post forms to your requirements a n d performs a n y a u x i l i a r y machining steps. Simple or intricate shapes r a n g i n g from 2 5 0 0 feet per pound to 6 feet per p o u n d can be e x t r u d e d . O f t e n , part d e sign can be modified to utilize these shapes f o r high q u a l i t y , extremely accurate, lower cost parts. W r i t e , w i r e o r phone f o r a q u o t a t i o n o n your requirements.
PENNSYLVANIA FLUOROCARBON CO., INC. Holley St. & Madison Ave., Clifton Hts., Pa. (215) MAdison 2-2300 TWX: 2 1 5 - 6 2 3 - 1 5 7 7 •DuPont Reg. T. M . Circle No. 75 on Readers' Service Card
